/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.15.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 13:51:17,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 13:51:17,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 13:51:17,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 13:51:17,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 13:51:17,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 13:51:17,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 13:51:17,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 13:51:17,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 13:51:17,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 13:51:17,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 13:51:17,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 13:51:17,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 13:51:17,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 13:51:17,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 13:51:17,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 13:51:17,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 13:51:17,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 13:51:17,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 13:51:17,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 13:51:17,662 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 13:51:17,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 13:51:17,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 13:51:17,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 13:51:17,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 13:51:17,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-19 13:51:17,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 13:51:17,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 13:51:17,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 13:51:17,682 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 13:51:17,690 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 13:51:17,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 13:51:17,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 13:51:17,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 13:51:17,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 13:51:17,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 13:51:17,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 13:51:17,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 13:51:17,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 13:51:17,694 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 13:51:17,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 13:51:17,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 13:51:17,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 13:51:17,695 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 13:51:17,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 13:51:17,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:51:17,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 13:51:17,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 13:51:17,696 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 13:51:17,696 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 13:51:17,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 13:51:17,696 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-19 13:51:17,696 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 13:51:17,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 13:51:17,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 13:51:17,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 13:51:17,962 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 13:51:17,963 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 13:51:17,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-03-19 13:51:18,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88ed31e09/8fb15b70806f42ecb2b5fbf625b3f2ec/FLAGe25d1e3d2 [2022-03-19 13:51:18,487 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 13:51:18,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-03-19 13:51:18,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88ed31e09/8fb15b70806f42ecb2b5fbf625b3f2ec/FLAGe25d1e3d2 [2022-03-19 13:51:18,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88ed31e09/8fb15b70806f42ecb2b5fbf625b3f2ec [2022-03-19 13:51:18,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 13:51:18,540 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 13:51:18,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 13:51:18,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 13:51:18,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 13:51:18,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:51:18" (1/1) ... [2022-03-19 13:51:18,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa7b7fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18, skipping insertion in model container [2022-03-19 13:51:18,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:51:18" (1/1) ... [2022-03-19 13:51:18,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 13:51:18,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 13:51:18,985 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.15.i.cil-2.c[75833,75846] [2022-03-19 13:51:18,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:51:19,002 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 13:51:19,080 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.15.i.cil-2.c[75833,75846] [2022-03-19 13:51:19,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:51:19,095 INFO L208 MainTranslator]: Completed translation [2022-03-19 13:51:19,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:19 WrapperNode [2022-03-19 13:51:19,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 13:51:19,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 13:51:19,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 13:51:19,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 13:51:19,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:19" (1/1) ... [2022-03-19 13:51:19,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:19" (1/1) ... [2022-03-19 13:51:19,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:19" (1/1) ... [2022-03-19 13:51:19,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:19" (1/1) ... [2022-03-19 13:51:19,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:19" (1/1) ... [2022-03-19 13:51:19,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:19" (1/1) ... [2022-03-19 13:51:19,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:19" (1/1) ... [2022-03-19 13:51:19,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 13:51:19,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 13:51:19,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 13:51:19,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 13:51:19,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:19" (1/1) ... [2022-03-19 13:51:19,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:51:19,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 13:51:19,229 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 13:51:19,255 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 13:51:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 13:51:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 13:51:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 13:51:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-19 13:51:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-19 13:51:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 13:51:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-19 13:51:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 13:51:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 13:51:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 13:51:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 13:51:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 13:51:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 13:51:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 13:51:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 13:51:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 13:51:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 13:51:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 13:51:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 13:51:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 13:51:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 13:51:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 13:51:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 13:51:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 13:51:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 13:51:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 13:51:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 13:51:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 13:51:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 13:51:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 13:51:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 13:51:19,504 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 13:51:19,506 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 13:51:20,417 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 13:51:20,769 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-19 13:51:20,769 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-19 13:51:20,779 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 13:51:20,785 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 13:51:20,786 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 13:51:20,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:51:20 BoogieIcfgContainer [2022-03-19 13:51:20,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 13:51:20,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 13:51:20,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 13:51:20,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 13:51:20,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 01:51:18" (1/3) ... [2022-03-19 13:51:20,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f4b47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:51:20, skipping insertion in model container [2022-03-19 13:51:20,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:19" (2/3) ... [2022-03-19 13:51:20,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f4b47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:51:20, skipping insertion in model container [2022-03-19 13:51:20,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:51:20" (3/3) ... [2022-03-19 13:51:20,794 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-2.c [2022-03-19 13:51:20,798 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 13:51:20,798 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 13:51:20,839 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 13:51:20,846 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 13:51:20,846 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 13:51:20,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 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 13:51:20,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-19 13:51:20,870 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:51:20,870 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] [2022-03-19 13:51:20,871 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:51:20,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:51:20,875 INFO L85 PathProgramCache]: Analyzing trace with hash -668377608, now seen corresponding path program 1 times [2022-03-19 13:51:20,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:20,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1987164800] [2022-03-19 13:51:20,890 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 13:51:20,890 INFO L85 PathProgramCache]: Analyzing trace with hash -668377608, now seen corresponding path program 2 times [2022-03-19 13:51:20,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:51:20,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043788060] [2022-03-19 13:51:20,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:51:20,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:51:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:21,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:51:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:21,436 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 13:51:21,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:51:21,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043788060] [2022-03-19 13:51:21,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043788060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:21,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:21,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:21,440 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:51:21,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1987164800] [2022-03-19 13:51:21,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1987164800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:21,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:21,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:21,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655041317] [2022-03-19 13:51:21,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:51:21,445 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:51:21,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:21,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:51:21,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:51:21,474 INFO L87 Difference]: Start difference. First operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 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 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 13:51:24,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:26,563 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 13:51:27,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:51:27,244 INFO L93 Difference]: Finished difference Result 342 states and 576 transitions. [2022-03-19 13:51:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:51:27,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 51 [2022-03-19 13:51:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:51:27,253 INFO L225 Difference]: With dead ends: 342 [2022-03-19 13:51:27,254 INFO L226 Difference]: Without dead ends: 174 [2022-03-19 13:51:27,256 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 13:51:27,259 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 34 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 13:51:27,259 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 631 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 422 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 13:51:27,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-03-19 13:51:27,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 157. [2022-03-19 13:51:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5657894736842106) internal successors, (238), 152 states have internal predecessors, (238), 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 13:51:27,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 242 transitions. [2022-03-19 13:51:27,312 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 242 transitions. Word has length 51 [2022-03-19 13:51:27,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:51:27,312 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 242 transitions. [2022-03-19 13:51:27,312 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 13:51:27,313 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 242 transitions. [2022-03-19 13:51:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-19 13:51:27,319 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:51:27,319 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] [2022-03-19 13:51:27,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 13:51:27,320 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:51:27,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:51:27,320 INFO L85 PathProgramCache]: Analyzing trace with hash -480939749, now seen corresponding path program 1 times [2022-03-19 13:51:27,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:27,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1731419904] [2022-03-19 13:51:27,330 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:51:27,330 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:51:27,331 INFO L85 PathProgramCache]: Analyzing trace with hash -480939749, now seen corresponding path program 2 times [2022-03-19 13:51:27,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:51:27,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331529352] [2022-03-19 13:51:27,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:51:27,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:51:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:27,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:51:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:27,535 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 13:51:27,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:51:27,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331529352] [2022-03-19 13:51:27,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331529352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:27,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:27,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:27,541 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:51:27,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1731419904] [2022-03-19 13:51:27,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1731419904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:27,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:27,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:27,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569226804] [2022-03-19 13:51:27,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:51:27,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:51:27,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:27,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:51:27,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:51:27,544 INFO L87 Difference]: Start difference. First operand 157 states and 242 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 13:51:28,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:30,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:32,537 WARN L534 Checker$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 13:51:33,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:34,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:51:34,061 INFO L93 Difference]: Finished difference Result 305 states and 467 transitions. [2022-03-19 13:51:34,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:51:34,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 64 [2022-03-19 13:51:34,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:51:34,063 INFO L225 Difference]: With dead ends: 305 [2022-03-19 13:51:34,063 INFO L226 Difference]: Without dead ends: 174 [2022-03-19 13:51:34,064 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 13:51:34,065 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 24 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:51:34,065 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 507 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-19 13:51:34,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-03-19 13:51:34,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 157. [2022-03-19 13:51:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5592105263157894) internal successors, (237), 152 states have internal predecessors, (237), 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 13:51:34,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 241 transitions. [2022-03-19 13:51:34,077 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 241 transitions. Word has length 64 [2022-03-19 13:51:34,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:51:34,077 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 241 transitions. [2022-03-19 13:51:34,077 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 13:51:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 241 transitions. [2022-03-19 13:51:34,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 13:51:34,079 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:51:34,079 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] [2022-03-19 13:51:34,079 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 13:51:34,079 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:51:34,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:51:34,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1522986347, now seen corresponding path program 1 times [2022-03-19 13:51:34,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:34,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [43413531] [2022-03-19 13:51:34,087 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:51:34,088 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:51:34,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1522986347, now seen corresponding path program 2 times [2022-03-19 13:51:34,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:51:34,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652624507] [2022-03-19 13:51:34,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:51:34,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:51:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:34,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:51:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:34,276 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 13:51:34,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:51:34,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652624507] [2022-03-19 13:51:34,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652624507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:34,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:34,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:34,277 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:51:34,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [43413531] [2022-03-19 13:51:34,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [43413531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:34,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:34,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:34,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654557979] [2022-03-19 13:51:34,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:51:34,278 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:51:34,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:34,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:51:34,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:51:34,279 INFO L87 Difference]: Start difference. First operand 157 states and 241 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 13:51:36,708 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 13:51:38,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:51:38,708 INFO L93 Difference]: Finished difference Result 407 states and 632 transitions. [2022-03-19 13:51:38,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:51:38,708 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 13:51:38,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:51:38,710 INFO L225 Difference]: With dead ends: 407 [2022-03-19 13:51:38,710 INFO L226 Difference]: Without dead ends: 276 [2022-03-19 13:51:38,711 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 13:51:38,712 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 154 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:51:38,712 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 368 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-19 13:51:38,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-03-19 13:51:38,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 168. [2022-03-19 13:51:38,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 163 states have (on average 1.5460122699386503) internal successors, (252), 163 states have internal predecessors, (252), 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 13:51:38,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 256 transitions. [2022-03-19 13:51:38,725 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 256 transitions. Word has length 65 [2022-03-19 13:51:38,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:51:38,725 INFO L478 AbstractCegarLoop]: Abstraction has 168 states and 256 transitions. [2022-03-19 13:51:38,725 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 13:51:38,725 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 256 transitions. [2022-03-19 13:51:38,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 13:51:38,727 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:51:38,727 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] [2022-03-19 13:51:38,727 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 13:51:38,727 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:51:38,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:51:38,728 INFO L85 PathProgramCache]: Analyzing trace with hash -112549033, now seen corresponding path program 1 times [2022-03-19 13:51:38,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:38,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [594001166] [2022-03-19 13:51:38,790 ERROR L250 FreeRefinementEngine]: Caught unknown exception: Undeclared function symbol (* (Array Int (Array Int Int)) Int) [2022-03-19 13:51:38,790 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-19 13:51:38,790 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-19 13:51:38,793 INFO L158 Benchmark]: Toolchain (without parser) took 20253.40ms. Allocated memory was 183.5MB in the beginning and 259.0MB in the end (delta: 75.5MB). Free memory was 129.8MB in the beginning and 163.2MB in the end (delta: -33.3MB). Peak memory consumption was 43.2MB. Max. memory is 8.0GB. [2022-03-19 13:51:38,793 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 183.5MB. Free memory was 148.8MB in the beginning and 148.8MB in the end (delta: 72.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 13:51:38,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.44ms. Allocated memory was 183.5MB in the beginning and 259.0MB in the end (delta: 75.5MB). Free memory was 129.6MB in the beginning and 211.4MB in the end (delta: -81.8MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-03-19 13:51:38,794 INFO L158 Benchmark]: Boogie Preprocessor took 102.68ms. Allocated memory is still 259.0MB. Free memory was 211.4MB in the beginning and 203.9MB in the end (delta: 7.5MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-19 13:51:38,794 INFO L158 Benchmark]: RCFGBuilder took 1587.17ms. Allocated memory is still 259.0MB. Free memory was 203.6MB in the beginning and 179.0MB in the end (delta: 24.7MB). Peak memory consumption was 33.4MB. Max. memory is 8.0GB. [2022-03-19 13:51:38,795 INFO L158 Benchmark]: TraceAbstraction took 18003.41ms. Allocated memory is still 259.0MB. Free memory was 178.4MB in the beginning and 163.2MB in the end (delta: 15.3MB). Peak memory consumption was 15.3MB. Max. memory is 8.0GB. [2022-03-19 13:51:38,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 183.5MB. Free memory was 148.8MB in the beginning and 148.8MB in the end (delta: 72.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 554.44ms. Allocated memory was 183.5MB in the beginning and 259.0MB in the end (delta: 75.5MB). Free memory was 129.6MB in the beginning and 211.4MB in the end (delta: -81.8MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 102.68ms. Allocated memory is still 259.0MB. Free memory was 211.4MB in the beginning and 203.9MB in the end (delta: 7.5MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1587.17ms. Allocated memory is still 259.0MB. Free memory was 203.6MB in the beginning and 179.0MB in the end (delta: 24.7MB). Peak memory consumption was 33.4MB. Max. memory is 8.0GB. * TraceAbstraction took 18003.41ms. Allocated memory is still 259.0MB. Free memory was 178.4MB in the beginning and 163.2MB in the end (delta: 15.3MB). Peak memory consumption was 15.3MB. 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 13:51:38,834 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...