/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 17:32:00,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 17:32:00,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 17:32:00,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 17:32:00,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 17:32:00,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 17:32:00,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 17:32:00,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 17:32:00,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 17:32:00,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 17:32:00,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 17:32:00,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 17:32:00,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 17:32:00,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 17:32:00,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 17:32:00,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 17:32:00,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 17:32:00,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 17:32:00,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 17:32:00,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 17:32:00,365 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 17:32:00,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 17:32:00,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 17:32:00,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 17:32:00,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 17:32:00,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 17:32:00,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 17:32:00,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 17:32:00,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 17:32:00,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 17:32:00,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 17:32:00,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 17:32:00,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 17:32:00,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 17:32:00,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 17:32:00,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 17:32:00,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 17:32:00,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 17:32:00,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 17:32:00,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 17:32:00,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 17:32:00,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 17:32:00,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 17:32:00,393 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 17:32:00,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 17:32:00,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 17:32:00,394 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 17:32:00,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 17:32:00,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 17:32:00,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 17:32:00,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 17:32:00,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 17:32:00,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 17:32:00,396 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 17:32:00,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 17:32:00,396 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 17:32:00,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 17:32:00,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 17:32:00,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 17:32:00,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 17:32:00,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 17:32:00,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:32:00,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 17:32:00,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 17:32:00,398 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 17:32:00,398 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 17:32:00,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 17:32:00,398 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 17:32:00,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 17:32:00,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 17:32:00,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 17:32:00,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 17:32:00,691 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 17:32:00,692 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 17:32:00,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-20 17:32:00,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/238f8ea60/3832ff433f574575a78af7f70aceb400/FLAGcf10ffc92 [2022-03-20 17:32:01,327 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 17:32:01,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-20 17:32:01,355 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/238f8ea60/3832ff433f574575a78af7f70aceb400/FLAGcf10ffc92 [2022-03-20 17:32:01,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/238f8ea60/3832ff433f574575a78af7f70aceb400 [2022-03-20 17:32:01,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 17:32:01,621 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 17:32:01,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 17:32:01,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 17:32:01,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 17:32:01,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:32:01" (1/1) ... [2022-03-20 17:32:01,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c53c36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:01, skipping insertion in model container [2022-03-20 17:32:01,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:32:01" (1/1) ... [2022-03-20 17:32:01,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 17:32:01,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 17:32:02,042 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-1.c[72918,72931] [2022-03-20 17:32:02,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:32:02,080 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 17:32:02,167 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-1.c[72918,72931] [2022-03-20 17:32:02,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:32:02,183 INFO L208 MainTranslator]: Completed translation [2022-03-20 17:32:02,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:02 WrapperNode [2022-03-20 17:32:02,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 17:32:02,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 17:32:02,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 17:32:02,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 17:32:02,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:02" (1/1) ... [2022-03-20 17:32:02,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:02" (1/1) ... [2022-03-20 17:32:02,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:02" (1/1) ... [2022-03-20 17:32:02,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:02" (1/1) ... [2022-03-20 17:32:02,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:02" (1/1) ... [2022-03-20 17:32:02,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:02" (1/1) ... [2022-03-20 17:32:02,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:02" (1/1) ... [2022-03-20 17:32:02,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 17:32:02,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 17:32:02,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 17:32:02,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 17:32:02,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:02" (1/1) ... [2022-03-20 17:32:02,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:32:02,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:32:02,361 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) [2022-03-20 17:32:02,386 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 [2022-03-20 17:32:02,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 17:32:02,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 17:32:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 17:32:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 17:32:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 17:32:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 17:32:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 17:32:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 17:32:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 17:32:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 17:32:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 17:32:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 17:32:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 17:32:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 17:32:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 17:32:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 17:32:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 17:32:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 17:32:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 17:32:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 17:32:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 17:32:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 17:32:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 17:32:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 17:32:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 17:32:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 17:32:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 17:32:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 17:32:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 17:32:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 17:32:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 17:32:02,580 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 17:32:02,582 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 17:32:05,025 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:32:05,448 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 17:32:05,448 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 17:32:05,461 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 17:32:05,472 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 17:32:05,472 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 17:32:05,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:32:05 BoogieIcfgContainer [2022-03-20 17:32:05,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 17:32:05,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 17:32:05,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 17:32:05,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 17:32:05,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 05:32:01" (1/3) ... [2022-03-20 17:32:05,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138de62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:32:05, skipping insertion in model container [2022-03-20 17:32:05,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:32:02" (2/3) ... [2022-03-20 17:32:05,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138de62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:32:05, skipping insertion in model container [2022-03-20 17:32:05,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:32:05" (3/3) ... [2022-03-20 17:32:05,482 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-1.c [2022-03-20 17:32:05,486 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 17:32:05,486 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 17:32:05,540 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 17:32:05,545 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 [2022-03-20 17:32:05,545 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 17:32:05,564 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) [2022-03-20 17:32:05,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 17:32:05,574 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:32:05,574 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:32:05,575 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:32:05,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:32:05,581 INFO L85 PathProgramCache]: Analyzing trace with hash 37136980, now seen corresponding path program 1 times [2022-03-20 17:32:05,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:05,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [939731480] [2022-03-20 17:32:05,594 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:32:05,594 INFO L85 PathProgramCache]: Analyzing trace with hash 37136980, now seen corresponding path program 2 times [2022-03-20 17:32:05,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:32:05,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925952636] [2022-03-20 17:32:05,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:32:05,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:32:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:32:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:06,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:32:06,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:32:06,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925952636] [2022-03-20 17:32:06,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925952636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:06,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:06,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:06,108 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:32:06,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [939731480] [2022-03-20 17:32:06,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [939731480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:06,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:06,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:06,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968854758] [2022-03-20 17:32:06,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:32:06,115 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:32:06,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:06,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:32:06,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:32:06,151 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 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2022-03-20 17:32:08,197 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 [] [2022-03-20 17:32:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:32:08,938 INFO L93 Difference]: Finished difference Result 328 states and 543 transitions. [2022-03-20 17:32:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:32:08,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 53 [2022-03-20 17:32:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:32:08,950 INFO L225 Difference]: With dead ends: 328 [2022-03-20 17:32:08,950 INFO L226 Difference]: Without dead ends: 167 [2022-03-20 17:32:08,953 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:32:08,956 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 33 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 17:32:08,956 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 583 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 17:32:08,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-20 17:32:08,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-03-20 17:32:08,998 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) [2022-03-20 17:32:09,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 227 transitions. [2022-03-20 17:32:09,001 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 227 transitions. Word has length 53 [2022-03-20 17:32:09,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:32:09,002 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 227 transitions. [2022-03-20 17:32:09,002 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2022-03-20 17:32:09,002 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 227 transitions. [2022-03-20 17:32:09,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 17:32:09,004 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:32:09,005 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:32:09,005 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 17:32:09,005 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:32:09,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:32:09,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2067870814, now seen corresponding path program 1 times [2022-03-20 17:32:09,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:09,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [859860869] [2022-03-20 17:32:09,028 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:32:09,029 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:32:09,029 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:32:09,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2067870814, now seen corresponding path program 2 times [2022-03-20 17:32:09,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:32:09,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449556981] [2022-03-20 17:32:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:32:09,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:32:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:09,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:32:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:32:09,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:32:09,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449556981] [2022-03-20 17:32:09,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449556981] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:09,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:09,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:09,290 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:32:09,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [859860869] [2022-03-20 17:32:09,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [859860869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:09,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:09,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:09,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950791964] [2022-03-20 17:32:09,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:32:09,291 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:32:09,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:09,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:32:09,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:32:09,292 INFO L87 Difference]: Start difference. First operand 150 states and 227 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) [2022-03-20 17:32:11,308 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 [] [2022-03-20 17:32:11,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:32:11,774 INFO L93 Difference]: Finished difference Result 291 states and 437 transitions. [2022-03-20 17:32:11,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:32:11,775 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 [2022-03-20 17:32:11,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:32:11,777 INFO L225 Difference]: With dead ends: 291 [2022-03-20 17:32:11,777 INFO L226 Difference]: Without dead ends: 167 [2022-03-20 17:32:11,778 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:32:11,779 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 24 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:32:11,779 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:32:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-20 17:32:11,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-03-20 17:32:11,792 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) [2022-03-20 17:32:11,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 226 transitions. [2022-03-20 17:32:11,793 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 226 transitions. Word has length 66 [2022-03-20 17:32:11,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:32:11,793 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 226 transitions. [2022-03-20 17:32:11,793 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) [2022-03-20 17:32:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 226 transitions. [2022-03-20 17:32:11,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 17:32:11,795 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:32:11,796 INFO L499 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, 1] [2022-03-20 17:32:11,796 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 17:32:11,796 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:32:11,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:32:11,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1264672313, now seen corresponding path program 1 times [2022-03-20 17:32:11,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:11,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1885931115] [2022-03-20 17:32:11,802 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:32:11,802 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:32:11,802 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:32:11,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1264672313, now seen corresponding path program 2 times [2022-03-20 17:32:11,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:32:11,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742141510] [2022-03-20 17:32:11,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:32:11,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:32:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:11,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:32:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:32:11,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:32:11,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742141510] [2022-03-20 17:32:11,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742141510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:11,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:11,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:11,936 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:32:11,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1885931115] [2022-03-20 17:32:11,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1885931115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:11,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:11,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:11,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621015152] [2022-03-20 17:32:11,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:32:11,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:32:11,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:11,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:32:11,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:32:11,938 INFO L87 Difference]: Start difference. First operand 150 states and 226 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) [2022-03-20 17:32:13,954 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 [] [2022-03-20 17:32:14,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:32:14,581 INFO L93 Difference]: Finished difference Result 390 states and 594 transitions. [2022-03-20 17:32:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:32:14,582 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 [2022-03-20 17:32:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:32:14,584 INFO L225 Difference]: With dead ends: 390 [2022-03-20 17:32:14,584 INFO L226 Difference]: Without dead ends: 266 [2022-03-20 17:32:14,585 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:32:14,586 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 139 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 17:32:14,586 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 17:32:14,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-20 17:32:14,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 167. [2022-03-20 17:32:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.537037037037037) internal successors, (249), 162 states have internal predecessors, (249), 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) [2022-03-20 17:32:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 253 transitions. [2022-03-20 17:32:14,609 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 253 transitions. Word has length 67 [2022-03-20 17:32:14,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:32:14,611 INFO L478 AbstractCegarLoop]: Abstraction has 167 states and 253 transitions. [2022-03-20 17:32:14,611 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) [2022-03-20 17:32:14,611 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 253 transitions. [2022-03-20 17:32:14,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 17:32:14,618 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:32:14,619 INFO L499 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, 1] [2022-03-20 17:32:14,619 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 17:32:14,619 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:32:14,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:32:14,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1566814562, now seen corresponding path program 1 times [2022-03-20 17:32:14,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:14,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1835250661] [2022-03-20 17:32:14,626 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:32:14,626 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:32:14,626 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:32:14,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1566814562, now seen corresponding path program 2 times [2022-03-20 17:32:14,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:32:14,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238050398] [2022-03-20 17:32:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:32:14,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:32:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:32:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:14,823 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:32:14,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:32:14,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238050398] [2022-03-20 17:32:14,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238050398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:14,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:14,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:14,824 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:32:14,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1835250661] [2022-03-20 17:32:14,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1835250661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:14,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:14,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:14,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194826005] [2022-03-20 17:32:14,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:32:14,830 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:32:14,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:14,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:32:14,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:32:14,831 INFO L87 Difference]: Start difference. First operand 167 states and 253 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) [2022-03-20 17:32:16,848 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 [] [2022-03-20 17:32:17,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:32:17,243 INFO L93 Difference]: Finished difference Result 322 states and 488 transitions. [2022-03-20 17:32:17,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:32:17,243 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 [2022-03-20 17:32:17,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:32:17,245 INFO L225 Difference]: With dead ends: 322 [2022-03-20 17:32:17,245 INFO L226 Difference]: Without dead ends: 181 [2022-03-20 17:32:17,246 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:32:17,247 INFO L913 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 [2022-03-20 17:32:17,247 INFO L914 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] [2022-03-20 17:32:17,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-03-20 17:32:17,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 167. [2022-03-20 17:32:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.5308641975308641) internal successors, (248), 162 states have internal predecessors, (248), 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) [2022-03-20 17:32:17,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 252 transitions. [2022-03-20 17:32:17,260 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 252 transitions. Word has length 67 [2022-03-20 17:32:17,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:32:17,260 INFO L478 AbstractCegarLoop]: Abstraction has 167 states and 252 transitions. [2022-03-20 17:32:17,260 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) [2022-03-20 17:32:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 252 transitions. [2022-03-20 17:32:17,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 17:32:17,261 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:32:17,261 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:32:17,261 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 17:32:17,262 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:32:17,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:32:17,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1167044530, now seen corresponding path program 1 times [2022-03-20 17:32:17,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:17,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1274253243] [2022-03-20 17:32:17,270 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:32:17,270 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:32:17,270 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:32:17,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1167044530, now seen corresponding path program 2 times [2022-03-20 17:32:17,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:32:17,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898886626] [2022-03-20 17:32:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:32:17,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:32:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:32:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:32:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:32:17,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:32:17,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898886626] [2022-03-20 17:32:17,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898886626] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:17,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:17,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:17,434 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:32:17,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1274253243] [2022-03-20 17:32:17,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1274253243] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:17,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:17,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:32:17,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958822723] [2022-03-20 17:32:17,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:32:17,436 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:32:17,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:17,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:32:17,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:32:17,438 INFO L87 Difference]: Start difference. First operand 167 states and 252 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) [2022-03-20 17:32:19,456 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 [] [2022-03-20 17:32:19,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:32:19,884 INFO L93 Difference]: Finished difference Result 321 states and 486 transitions. [2022-03-20 17:32:19,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:32:19,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 68 [2022-03-20 17:32:19,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:32:19,886 INFO L225 Difference]: With dead ends: 321 [2022-03-20 17:32:19,886 INFO L226 Difference]: Without dead ends: 180 [2022-03-20 17:32:19,886 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:32:19,887 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:32:19,887 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:32:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-03-20 17:32:19,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 167. [2022-03-20 17:32:19,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.5246913580246915) internal successors, (247), 162 states have internal predecessors, (247), 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) [2022-03-20 17:32:19,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 251 transitions. [2022-03-20 17:32:19,902 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 251 transitions. Word has length 68 [2022-03-20 17:32:19,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:32:19,902 INFO L478 AbstractCegarLoop]: Abstraction has 167 states and 251 transitions. [2022-03-20 17:32:19,903 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) [2022-03-20 17:32:19,903 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 251 transitions. [2022-03-20 17:32:19,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 17:32:19,907 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:32:19,907 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:32:19,908 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 17:32:19,908 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:32:19,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:32:19,908 INFO L85 PathProgramCache]: Analyzing trace with hash -958455226, now seen corresponding path program 1 times [2022-03-20 17:32:19,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:19,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [810847929] [2022-03-20 17:32:19,979 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 20 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-20 17:32:19,980 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 17:32:19,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2012135217, now seen corresponding path program 1 times [2022-03-20 17:32:19,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:32:19,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333510221] [2022-03-20 17:32:19,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:32:19,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:32:20,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 17:32:20,031 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) 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.lib.acceleratedinterpolation.AcceleratedInterpolationCore.runStrategy(AcceleratedInterpolationCore.java:300) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:289) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAcceleratedInterpolation.construct(IpTcStrategyModuleAcceleratedInterpolation.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:471) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertCodeBlocks.java:109) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:313) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 40 more [2022-03-20 17:32:20,034 INFO L158 Benchmark]: Toolchain (without parser) took 18413.01ms. Allocated memory was 180.4MB in the beginning and 233.8MB in the end (delta: 53.5MB). Free memory was 131.7MB in the beginning and 149.3MB in the end (delta: -17.6MB). Peak memory consumption was 35.3MB. Max. memory is 8.0GB. [2022-03-20 17:32:20,034 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 17:32:20,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.56ms. Allocated memory is still 180.4MB. Free memory was 131.5MB in the beginning and 138.2MB in the end (delta: -6.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-03-20 17:32:20,035 INFO L158 Benchmark]: Boogie Preprocessor took 134.01ms. Allocated memory is still 180.4MB. Free memory was 138.2MB in the beginning and 130.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-20 17:32:20,035 INFO L158 Benchmark]: RCFGBuilder took 3155.18ms. Allocated memory is still 180.4MB. Free memory was 130.4MB in the beginning and 106.4MB in the end (delta: 23.9MB). Peak memory consumption was 35.4MB. Max. memory is 8.0GB. [2022-03-20 17:32:20,035 INFO L158 Benchmark]: TraceAbstraction took 14557.25ms. Allocated memory was 180.4MB in the beginning and 233.8MB in the end (delta: 53.5MB). Free memory was 105.9MB in the beginning and 149.3MB in the end (delta: -43.4MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-03-20 17:32:20,037 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 558.56ms. Allocated memory is still 180.4MB. Free memory was 131.5MB in the beginning and 138.2MB in the end (delta: -6.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 134.01ms. Allocated memory is still 180.4MB. Free memory was 138.2MB in the beginning and 130.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 3155.18ms. Allocated memory is still 180.4MB. Free memory was 130.4MB in the beginning and 106.4MB in the end (delta: 23.9MB). Peak memory consumption was 35.4MB. Max. memory is 8.0GB. * TraceAbstraction took 14557.25ms. Allocated memory was 180.4MB in the beginning and 233.8MB in the end (delta: 53.5MB). Free memory was 105.9MB in the beginning and 149.3MB in the end (delta: -43.4MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-20 17:32:20,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...