/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.01.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 13:42:48,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 13:42:48,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 13:42:48,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 13:42:48,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 13:42:48,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 13:42:48,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 13:42:48,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 13:42:48,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 13:42:48,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 13:42:48,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 13:42:48,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 13:42:48,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 13:42:48,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 13:42:48,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 13:42:48,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 13:42:48,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 13:42:48,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 13:42:48,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 13:42:48,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 13:42:48,611 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 13:42:48,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 13:42:48,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 13:42:48,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 13:42:48,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 13:42:48,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-19 13:42:48,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 13:42:48,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 13:42:48,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 13:42:48,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-19 13:42:48,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 13:42:48,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 13:42:48,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 13:42:48,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 13:42:48,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 13:42:48,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 13:42:48,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 13:42:48,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 13:42:48,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 13:42:48,636 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 13:42:48,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 13:42:48,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 13:42:48,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 13:42:48,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 13:42:48,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 13:42:48,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:42:48,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 13:42:48,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 13:42:48,637 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 13:42:48,637 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 13:42:48,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 13:42:48,637 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-19 13:42:48,637 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 13:42:48,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 13:42:48,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 13:42:48,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 13:42:48,854 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 13:42:48,854 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 13:42:48,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c [2022-03-19 13:42:48,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3ffcc861/9347d8f7cd8047888e81c0a232338ab3/FLAG106bdb39f [2022-03-19 13:42:49,305 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 13:42:49,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c [2022-03-19 13:42:49,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3ffcc861/9347d8f7cd8047888e81c0a232338ab3/FLAG106bdb39f [2022-03-19 13:42:49,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3ffcc861/9347d8f7cd8047888e81c0a232338ab3 [2022-03-19 13:42:49,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 13:42:49,639 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 13:42:49,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 13:42:49,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 13:42:49,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 13:42:49,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:42:49" (1/1) ... [2022-03-19 13:42:49,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f2ccc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:49, skipping insertion in model container [2022-03-19 13:42:49,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:42:49" (1/1) ... [2022-03-19 13:42:49,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 13:42:49,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 13:42:50,011 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.01.i.cil-2.c[72913,72926] [2022-03-19 13:42:50,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:42:50,027 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 13:42:50,131 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.01.i.cil-2.c[72913,72926] [2022-03-19 13:42:50,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:42:50,148 INFO L208 MainTranslator]: Completed translation [2022-03-19 13:42:50,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:50 WrapperNode [2022-03-19 13:42:50,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 13:42:50,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 13:42:50,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 13:42:50,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 13:42:50,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:50" (1/1) ... [2022-03-19 13:42:50,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:50" (1/1) ... [2022-03-19 13:42:50,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:50" (1/1) ... [2022-03-19 13:42:50,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:50" (1/1) ... [2022-03-19 13:42:50,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:50" (1/1) ... [2022-03-19 13:42:50,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:50" (1/1) ... [2022-03-19 13:42:50,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:50" (1/1) ... [2022-03-19 13:42:50,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 13:42:50,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 13:42:50,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 13:42:50,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 13:42:50,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:50" (1/1) ... [2022-03-19 13:42:50,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:42:50,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 13:42:50,270 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) [2022-03-19 13:42:50,288 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 [2022-03-19 13:42:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 13:42:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 13:42:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 13:42:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-19 13:42:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-19 13:42:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 13:42:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-19 13:42:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 13:42:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 13:42:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 13:42:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 13:42:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 13:42:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 13:42:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 13:42:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 13:42:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 13:42:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 13:42:50,468 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 13:42:50,470 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 13:42:52,703 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 13:42:53,207 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-19 13:42:53,208 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-19 13:42:53,218 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 13:42:53,225 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 13:42:53,225 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 13:42:53,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:42:53 BoogieIcfgContainer [2022-03-19 13:42:53,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 13:42:53,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 13:42:53,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 13:42:53,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 13:42:53,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 01:42:49" (1/3) ... [2022-03-19 13:42:53,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b51642e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:42:53, skipping insertion in model container [2022-03-19 13:42:53,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:42:50" (2/3) ... [2022-03-19 13:42:53,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b51642e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:42:53, skipping insertion in model container [2022-03-19 13:42:53,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:42:53" (3/3) ... [2022-03-19 13:42:53,236 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-2.c [2022-03-19 13:42:53,239 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 13:42:53,240 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 13:42:53,267 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 13:42:53,270 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 [2022-03-19 13:42:53,271 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 13:42:53,284 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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) [2022-03-19 13:42:53,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-19 13:42:53,292 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:42:53,293 INFO L500 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, 1, 1, 1] [2022-03-19 13:42:53,293 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:42:53,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:42:53,310 INFO L85 PathProgramCache]: Analyzing trace with hash 740864289, now seen corresponding path program 1 times [2022-03-19 13:42:53,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:53,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [540391651] [2022-03-19 13:42:53,325 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 13:42:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash 740864289, now seen corresponding path program 2 times [2022-03-19 13:42:53,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:42:53,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809149296] [2022-03-19 13:42:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:42:53,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:42:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:42:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:53,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:42:53,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:42:53,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809149296] [2022-03-19 13:42:53,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809149296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:53,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:53,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:42:53,810 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:42:53,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [540391651] [2022-03-19 13:42:53,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [540391651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:53,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:53,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:42:53,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101467532] [2022-03-19 13:42:53,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:42:53,816 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:42:53,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:53,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:42:53,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:42:53,841 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-03-19 13:42:55,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:42:57,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:42:59,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:43:01,804 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 [] [2022-03-19 13:43:02,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:43:02,361 INFO L93 Difference]: Finished difference Result 328 states and 543 transitions. [2022-03-19 13:43:02,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:43:02,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 52 [2022-03-19 13:43:02,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:43:02,370 INFO L225 Difference]: With dead ends: 328 [2022-03-19 13:43:02,370 INFO L226 Difference]: Without dead ends: 167 [2022-03-19 13:43:02,374 INFO L911 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 [2022-03-19 13:43:02,376 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 33 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:43:02,377 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 583 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-03-19 13:43:02,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-19 13:43:02,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-03-19 13:43:02,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5379310344827586) internal successors, (223), 145 states have internal predecessors, (223), 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) [2022-03-19 13:43:02,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 227 transitions. [2022-03-19 13:43:02,407 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 227 transitions. Word has length 52 [2022-03-19 13:43:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:43:02,408 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 227 transitions. [2022-03-19 13:43:02,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2022-03-19 13:43:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 227 transitions. [2022-03-19 13:43:02,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 13:43:02,409 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:43:02,410 INFO L500 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, 1, 1, 1] [2022-03-19 13:43:02,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 13:43:02,410 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:43:02,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:43:02,410 INFO L85 PathProgramCache]: Analyzing trace with hash -444444622, now seen corresponding path program 1 times [2022-03-19 13:43:02,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:43:02,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [530572548] [2022-03-19 13:43:02,431 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:43:02,431 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:43:02,432 INFO L85 PathProgramCache]: Analyzing trace with hash -444444622, now seen corresponding path program 2 times [2022-03-19 13:43:02,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:43:02,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703264432] [2022-03-19 13:43:02,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:43:02,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:43:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:43:02,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:43:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:43:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:43:02,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:43:02,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703264432] [2022-03-19 13:43:02,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703264432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:43:02,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:43:02,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:43:02,632 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:43:02,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [530572548] [2022-03-19 13:43:02,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [530572548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:43:02,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:43:02,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:43:02,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588282270] [2022-03-19 13:43:02,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:43:02,635 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:43:02,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:43:02,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:43:02,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:43:02,636 INFO L87 Difference]: Start difference. First operand 150 states and 227 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-03-19 13:43:04,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:43:05,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:43:05,004 INFO L93 Difference]: Finished difference Result 291 states and 437 transitions. [2022-03-19 13:43:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:43:05,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 65 [2022-03-19 13:43:05,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:43:05,006 INFO L225 Difference]: With dead ends: 291 [2022-03-19 13:43:05,006 INFO L226 Difference]: Without dead ends: 167 [2022-03-19 13:43:05,007 INFO L911 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 [2022-03-19 13:43:05,008 INFO L912 BasicCegarLoop]: 180 mSDtfsCounter, 24 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:43:05,008 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:43:05,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-19 13:43:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-03-19 13:43:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5310344827586206) internal successors, (222), 145 states have internal predecessors, (222), 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) [2022-03-19 13:43:05,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 226 transitions. [2022-03-19 13:43:05,028 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 226 transitions. Word has length 65 [2022-03-19 13:43:05,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:43:05,028 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 226 transitions. [2022-03-19 13:43:05,028 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-03-19 13:43:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 226 transitions. [2022-03-19 13:43:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-19 13:43:05,029 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:43:05,029 INFO L500 BasicCegarLoop]: trace histogram [2, 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, 1, 1] [2022-03-19 13:43:05,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 13:43:05,030 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:43:05,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:43:05,030 INFO L85 PathProgramCache]: Analyzing trace with hash 795477037, now seen corresponding path program 1 times [2022-03-19 13:43:05,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:43:05,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [727908188] [2022-03-19 13:43:05,034 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:43:05,034 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:43:05,035 INFO L85 PathProgramCache]: Analyzing trace with hash 795477037, now seen corresponding path program 2 times [2022-03-19 13:43:05,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:43:05,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549779762] [2022-03-19 13:43:05,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:43:05,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:43:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:43:05,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:43:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:43:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:43:05,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:43:05,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549779762] [2022-03-19 13:43:05,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549779762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:43:05,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:43:05,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:43:05,161 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:43:05,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [727908188] [2022-03-19 13:43:05,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [727908188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:43:05,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:43:05,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:43:05,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955828601] [2022-03-19 13:43:05,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:43:05,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:43:05,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:43:05,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:43:05,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:43:05,164 INFO L87 Difference]: Start difference. First operand 150 states and 226 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-03-19 13:43:07,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:43:07,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:43:07,487 INFO L93 Difference]: Finished difference Result 289 states and 434 transitions. [2022-03-19 13:43:07,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:43:07,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 66 [2022-03-19 13:43:07,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:43:07,488 INFO L225 Difference]: With dead ends: 289 [2022-03-19 13:43:07,488 INFO L226 Difference]: Without dead ends: 165 [2022-03-19 13:43:07,489 INFO L911 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 [2022-03-19 13:43:07,490 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:43:07,490 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 466 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:43:07,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-03-19 13:43:07,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 150. [2022-03-19 13:43:07,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5241379310344827) internal successors, (221), 145 states have internal predecessors, (221), 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) [2022-03-19 13:43:07,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 225 transitions. [2022-03-19 13:43:07,497 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 225 transitions. Word has length 66 [2022-03-19 13:43:07,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:43:07,497 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 225 transitions. [2022-03-19 13:43:07,497 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-03-19 13:43:07,498 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 225 transitions. [2022-03-19 13:43:07,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-19 13:43:07,498 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:43:07,499 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 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] [2022-03-19 13:43:07,499 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 13:43:07,499 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:43:07,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:43:07,499 INFO L85 PathProgramCache]: Analyzing trace with hash -498657998, now seen corresponding path program 1 times [2022-03-19 13:43:07,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:43:07,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [337384538] [2022-03-19 13:43:07,501 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:43:07,501 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:43:07,502 INFO L85 PathProgramCache]: Analyzing trace with hash -498657998, now seen corresponding path program 2 times [2022-03-19 13:43:07,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:43:07,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255139449] [2022-03-19 13:43:07,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:43:07,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:43:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:43:07,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:43:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:43:07,641 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:43:07,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:43:07,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255139449] [2022-03-19 13:43:07,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255139449] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:43:07,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:43:07,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:43:07,641 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:43:07,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [337384538] [2022-03-19 13:43:07,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [337384538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:43:07,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:43:07,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:43:07,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129611326] [2022-03-19 13:43:07,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:43:07,645 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:43:07,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:43:07,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:43:07,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:43:07,646 INFO L87 Difference]: Start difference. First operand 150 states and 225 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-03-19 13:43:09,659 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 [] [2022-03-19 13:43:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:43:10,047 INFO L93 Difference]: Finished difference Result 288 states and 432 transitions. [2022-03-19 13:43:10,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:43:10,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 66 [2022-03-19 13:43:10,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:43:10,048 INFO L225 Difference]: With dead ends: 288 [2022-03-19 13:43:10,049 INFO L226 Difference]: Without dead ends: 164 [2022-03-19 13:43:10,049 INFO L911 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 [2022-03-19 13:43:10,050 INFO L912 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:43:10,050 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 468 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:43:10,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-03-19 13:43:10,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 150. [2022-03-19 13:43:10,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5172413793103448) internal successors, (220), 145 states have internal predecessors, (220), 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) [2022-03-19 13:43:10,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 224 transitions. [2022-03-19 13:43:10,058 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 224 transitions. Word has length 66 [2022-03-19 13:43:10,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:43:10,058 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 224 transitions. [2022-03-19 13:43:10,058 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-03-19 13:43:10,058 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 224 transitions. [2022-03-19 13:43:10,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-19 13:43:10,059 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:43:10,059 INFO L500 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, 1, 1, 1, 1] [2022-03-19 13:43:10,059 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 13:43:10,059 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:43:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:43:10,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2086075870, now seen corresponding path program 1 times [2022-03-19 13:43:10,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:43:10,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [153569475] [2022-03-19 13:43:10,069 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:43:10,069 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:43:10,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2086075870, now seen corresponding path program 2 times [2022-03-19 13:43:10,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:43:10,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706826735] [2022-03-19 13:43:10,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:43:10,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:43:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:43:10,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:43:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:43:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:43:10,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:43:10,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706826735] [2022-03-19 13:43:10,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706826735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:43:10,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:43:10,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:43:10,187 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:43:10,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [153569475] [2022-03-19 13:43:10,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [153569475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:43:10,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:43:10,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:43:10,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897282375] [2022-03-19 13:43:10,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:43:10,192 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:43:10,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:43:10,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:43:10,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:43:10,193 INFO L87 Difference]: Start difference. First operand 150 states and 224 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-03-19 13:43:12,203 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 [] [2022-03-19 13:43:12,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:43:12,529 INFO L93 Difference]: Finished difference Result 287 states and 430 transitions. [2022-03-19 13:43:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:43:12,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 67 [2022-03-19 13:43:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:43:12,531 INFO L225 Difference]: With dead ends: 287 [2022-03-19 13:43:12,531 INFO L226 Difference]: Without dead ends: 163 [2022-03-19 13:43:12,531 INFO L911 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 [2022-03-19 13:43:12,532 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:43:12,532 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:43:12,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-03-19 13:43:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 150. [2022-03-19 13:43:12,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5103448275862068) internal successors, (219), 145 states have internal predecessors, (219), 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) [2022-03-19 13:43:12,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 223 transitions. [2022-03-19 13:43:12,538 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 223 transitions. Word has length 67 [2022-03-19 13:43:12,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:43:12,539 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 223 transitions. [2022-03-19 13:43:12,539 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-03-19 13:43:12,539 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 223 transitions. [2022-03-19 13:43:12,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-19 13:43:12,540 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:43:12,540 INFO L500 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, 1, 1, 1, 1] [2022-03-19 13:43:12,540 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 13:43:12,540 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:43:12,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:43:12,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1877545714, now seen corresponding path program 1 times [2022-03-19 13:43:12,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:43:12,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [933128554] [2022-03-19 13:43:12,599 ERROR L250 FreeRefinementEngine]: Caught unknown exception: Undeclared function symbol (* (Array Int (Array Int Int)) Int) [2022-03-19 13:43:12,599 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-19 13:43:12,599 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:596) 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) [2022-03-19 13:43:12,608 INFO L158 Benchmark]: Toolchain (without parser) took 22969.58ms. Allocated memory was 188.7MB in the beginning and 259.0MB in the end (delta: 70.3MB). Free memory was 136.3MB in the beginning and 135.7MB in the end (delta: 633.1kB). Peak memory consumption was 72.5MB. Max. memory is 8.0GB. [2022-03-19 13:43:12,608 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory was 154.7MB in the beginning and 154.6MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 13:43:12,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.00ms. Allocated memory is still 188.7MB. Free memory was 136.0MB in the beginning and 144.7MB in the end (delta: -8.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-19 13:43:12,609 INFO L158 Benchmark]: Boogie Preprocessor took 83.56ms. Allocated memory is still 188.7MB. Free memory was 144.7MB in the beginning and 137.4MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-19 13:43:12,609 INFO L158 Benchmark]: RCFGBuilder took 2993.47ms. Allocated memory was 188.7MB in the beginning and 259.0MB in the end (delta: 70.3MB). Free memory was 137.4MB in the beginning and 199.7MB in the end (delta: -62.3MB). Peak memory consumption was 53.0MB. Max. memory is 8.0GB. [2022-03-19 13:43:12,610 INFO L158 Benchmark]: TraceAbstraction took 19380.38ms. Allocated memory is still 259.0MB. Free memory was 199.2MB in the beginning and 135.7MB in the end (delta: 63.5MB). Peak memory consumption was 63.5MB. Max. memory is 8.0GB. [2022-03-19 13:43:12,610 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 188.7MB. Free memory was 154.7MB in the beginning and 154.6MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 500.00ms. Allocated memory is still 188.7MB. Free memory was 136.0MB in the beginning and 144.7MB in the end (delta: -8.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 83.56ms. Allocated memory is still 188.7MB. Free memory was 144.7MB in the beginning and 137.4MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2993.47ms. Allocated memory was 188.7MB in the beginning and 259.0MB in the end (delta: 70.3MB). Free memory was 137.4MB in the beginning and 199.7MB in the end (delta: -62.3MB). Peak memory consumption was 53.0MB. Max. memory is 8.0GB. * TraceAbstraction took 19380.38ms. Allocated memory is still 259.0MB. Free memory was 199.2MB in the beginning and 135.7MB in the end (delta: 63.5MB). Peak memory consumption was 63.5MB. 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. [2022-03-19 13:43:12,644 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...