/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.11.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 17:33:54,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 17:33:54,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 17:33:54,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 17:33:54,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 17:33:54,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 17:33:54,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 17:33:54,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 17:33:54,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 17:33:54,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 17:33:54,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 17:33:54,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 17:33:54,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 17:33:54,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 17:33:54,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 17:33:54,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 17:33:54,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 17:33:54,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 17:33:54,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 17:33:54,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 17:33:54,372 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 17:33:54,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 17:33:54,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 17:33:54,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 17:33:54,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 17:33:54,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 17:33:54,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 17:33:54,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 17:33:54,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 17:33:54,382 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 17:33:54,388 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 17:33:54,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 17:33:54,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 17:33:54,389 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 17:33:54,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 17:33:54,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 17:33:54,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 17:33:54,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 17:33:54,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 17:33:54,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 17:33:54,390 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 17:33:54,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 17:33:54,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 17:33:54,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 17:33:54,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 17:33:54,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 17:33:54,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 17:33:54,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 17:33:54,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:33:54,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 17:33:54,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 17:33:54,391 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 17:33:54,392 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 17:33:54,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 17:33:54,392 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 17:33:54,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 17:33:54,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 17:33:54,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 17:33:54,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 17:33:54,567 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 17:33:54,568 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 17:33:54,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-03-20 17:33:54,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d865f428b/01b6ddedf9dd436db53b6fca30c9f161/FLAG5d3df8d80 [2022-03-20 17:33:55,106 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 17:33:55,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-03-20 17:33:55,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d865f428b/01b6ddedf9dd436db53b6fca30c9f161/FLAG5d3df8d80 [2022-03-20 17:33:55,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d865f428b/01b6ddedf9dd436db53b6fca30c9f161 [2022-03-20 17:33:55,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 17:33:55,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 17:33:55,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 17:33:55,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 17:33:55,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 17:33:55,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:33:55" (1/1) ... [2022-03-20 17:33:55,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb76b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:55, skipping insertion in model container [2022-03-20 17:33:55,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:33:55" (1/1) ... [2022-03-20 17:33:55,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 17:33:55,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 17:33:55,940 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.11.i.cil-2.c[74369,74382] [2022-03-20 17:33:55,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:33:55,965 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 17:33:56,050 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.11.i.cil-2.c[74369,74382] [2022-03-20 17:33:56,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:33:56,063 INFO L208 MainTranslator]: Completed translation [2022-03-20 17:33:56,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:56 WrapperNode [2022-03-20 17:33:56,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 17:33:56,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 17:33:56,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 17:33:56,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 17:33:56,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:56" (1/1) ... [2022-03-20 17:33:56,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:56" (1/1) ... [2022-03-20 17:33:56,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:56" (1/1) ... [2022-03-20 17:33:56,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:56" (1/1) ... [2022-03-20 17:33:56,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:56" (1/1) ... [2022-03-20 17:33:56,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:56" (1/1) ... [2022-03-20 17:33:56,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:56" (1/1) ... [2022-03-20 17:33:56,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 17:33:56,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 17:33:56,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 17:33:56,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 17:33:56,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:56" (1/1) ... [2022-03-20 17:33:56,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:33:56,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:33:56,175 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 17:33:56,176 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 17:33:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 17:33:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 17:33:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 17:33:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 17:33:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 17:33:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 17:33:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 17:33:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 17:33:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 17:33:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 17:33:56,204 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 17:33:56,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 17:33:56,204 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 17:33:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 17:33:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 17:33:56,369 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 17:33:56,370 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 17:33:56,979 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:33:57,294 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 17:33:57,294 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 17:33:57,304 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 17:33:57,313 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 17:33:57,313 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 17:33:57,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:33:57 BoogieIcfgContainer [2022-03-20 17:33:57,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 17:33:57,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 17:33:57,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 17:33:57,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 17:33:57,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 05:33:55" (1/3) ... [2022-03-20 17:33:57,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1b8163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:33:57, skipping insertion in model container [2022-03-20 17:33:57,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:33:56" (2/3) ... [2022-03-20 17:33:57,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1b8163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:33:57, skipping insertion in model container [2022-03-20 17:33:57,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:33:57" (3/3) ... [2022-03-20 17:33:57,321 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.11.i.cil-2.c [2022-03-20 17:33:57,324 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 17:33:57,325 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 17:33:57,351 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 17:33:57,355 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 17:33:57,356 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 17:33:57,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 17:33:57,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-20 17:33:57,385 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:33:57,386 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:33:57,386 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:33:57,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:33:57,389 INFO L85 PathProgramCache]: Analyzing trace with hash -671352377, now seen corresponding path program 1 times [2022-03-20 17:33:57,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:33:57,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1433516348] [2022-03-20 17:33:57,403 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:33:57,403 INFO L85 PathProgramCache]: Analyzing trace with hash -671352377, now seen corresponding path program 2 times [2022-03-20 17:33:57,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:33:57,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188082047] [2022-03-20 17:33:57,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:33:57,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:33:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:33:57,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:33:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:33:57,806 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 17:33:57,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:33:57,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188082047] [2022-03-20 17:33:57,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188082047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:33:57,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:33:57,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:33:57,809 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:33:57,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1433516348] [2022-03-20 17:33:57,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1433516348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:33:57,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:33:57,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:33:57,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454009632] [2022-03-20 17:33:57,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:33:57,812 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:33:57,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:33:57,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:33:57,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:33:57,831 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:01,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:34:01,631 INFO L93 Difference]: Finished difference Result 430 states and 727 transitions. [2022-03-20 17:34:01,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:34:01,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-20 17:34:01,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:34:01,641 INFO L225 Difference]: With dead ends: 430 [2022-03-20 17:34:01,641 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 17:34:01,644 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 17:34:01,646 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 167 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 17:34:01,646 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 17:34:01,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 17:34:01,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 170. [2022-03-20 17:34:01,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:01,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-03-20 17:34:01,692 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-03-20 17:34:01,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:34:01,693 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-03-20 17:34:01,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:01,693 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-03-20 17:34:01,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-20 17:34:01,695 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:34:01,695 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:34:01,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 17:34:01,695 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:34:01,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:34:01,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1244096364, now seen corresponding path program 1 times [2022-03-20 17:34:01,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:01,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1820765456] [2022-03-20 17:34:01,700 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:34:01,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1244096364, now seen corresponding path program 2 times [2022-03-20 17:34:01,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:34:01,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651792374] [2022-03-20 17:34:01,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:34:01,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:34:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:01,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:34:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:01,862 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 17:34:01,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:34:01,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651792374] [2022-03-20 17:34:01,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651792374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:01,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:01,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:01,873 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:34:01,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1820765456] [2022-03-20 17:34:01,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1820765456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:01,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:01,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:01,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701032239] [2022-03-20 17:34:01,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:34:01,875 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:34:01,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:01,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:34:01,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:34:01,876 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:03,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:05,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:06,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:07,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:34:07,968 INFO L93 Difference]: Finished difference Result 444 states and 697 transitions. [2022-03-20 17:34:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:34:07,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-03-20 17:34:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:34:07,971 INFO L225 Difference]: With dead ends: 444 [2022-03-20 17:34:07,971 INFO L226 Difference]: Without dead ends: 289 [2022-03-20 17:34:07,971 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 17:34:07,972 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 134 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-20 17:34:07,973 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-20 17:34:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-03-20 17:34:07,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 199. [2022-03-20 17:34:07,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:07,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-20 17:34:07,986 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-03-20 17:34:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:34:07,986 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-20 17:34:07,986 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:07,986 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-20 17:34:07,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 17:34:07,988 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:34:07,988 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:34:07,988 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 17:34:07,988 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:34:07,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:34:07,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1913847322, now seen corresponding path program 1 times [2022-03-20 17:34:07,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:07,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [328635258] [2022-03-20 17:34:07,989 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:34:07,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1913847322, now seen corresponding path program 2 times [2022-03-20 17:34:07,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:34:07,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839980721] [2022-03-20 17:34:07,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:34:07,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:34:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:08,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:34:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:08,146 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 17:34:08,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:34:08,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839980721] [2022-03-20 17:34:08,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839980721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:08,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:08,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:08,147 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:34:08,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [328635258] [2022-03-20 17:34:08,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [328635258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:08,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:08,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:08,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386579616] [2022-03-20 17:34:08,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:34:08,151 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:34:08,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:08,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:34:08,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:34:08,152 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:12,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:13,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:13,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:34:13,976 INFO L93 Difference]: Finished difference Result 503 states and 800 transitions. [2022-03-20 17:34:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:34:13,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-20 17:34:13,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:34:13,978 INFO L225 Difference]: With dead ends: 503 [2022-03-20 17:34:13,978 INFO L226 Difference]: Without dead ends: 319 [2022-03-20 17:34:13,979 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 17:34:13,979 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 17:34:13,979 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 17:34:13,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-03-20 17:34:13,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 239. [2022-03-20 17:34:13,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:13,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-03-20 17:34:13,993 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 49 [2022-03-20 17:34:13,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:34:13,993 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-03-20 17:34:13,994 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:13,994 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-03-20 17:34:13,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 17:34:13,995 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:34:13,995 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] [2022-03-20 17:34:13,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 17:34:13,995 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:34:13,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:34:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1017457862, now seen corresponding path program 1 times [2022-03-20 17:34:13,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:13,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [192744084] [2022-03-20 17:34:13,996 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:34:13,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1017457862, now seen corresponding path program 2 times [2022-03-20 17:34:13,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:34:13,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379740299] [2022-03-20 17:34:13,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:34:13,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:34:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:14,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:34:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:14,101 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 17:34:14,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:34:14,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379740299] [2022-03-20 17:34:14,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379740299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:14,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:14,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:14,102 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:34:14,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [192744084] [2022-03-20 17:34:14,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [192744084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:14,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:14,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:14,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305621768] [2022-03-20 17:34:14,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:34:14,105 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:34:14,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:14,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:34:14,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:34:14,109 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 17:34:15,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:17,732 WARN L534 Checker$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 17:34:19,756 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 17:34:20,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:34:20,223 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-03-20 17:34:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:34:20,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 50 [2022-03-20 17:34:20,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:34:20,225 INFO L225 Difference]: With dead ends: 553 [2022-03-20 17:34:20,225 INFO L226 Difference]: Without dead ends: 329 [2022-03-20 17:34:20,226 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 17:34:20,226 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-20 17:34:20,226 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 364 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-20 17:34:20,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-03-20 17:34:20,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 250. [2022-03-20 17:34:20,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 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 17:34:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-03-20 17:34:20,237 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 50 [2022-03-20 17:34:20,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:34:20,237 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-03-20 17:34:20,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 17:34:20,237 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-03-20 17:34:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 17:34:20,239 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:34:20,239 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 17:34:20,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 17:34:20,239 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:34:20,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:34:20,240 INFO L85 PathProgramCache]: Analyzing trace with hash -16045120, now seen corresponding path program 1 times [2022-03-20 17:34:20,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:20,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1279934208] [2022-03-20 17:34:20,304 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:34:20,304 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:34:20,304 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:34:20,304 INFO L85 PathProgramCache]: Analyzing trace with hash -16045120, now seen corresponding path program 2 times [2022-03-20 17:34:20,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:34:20,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933291482] [2022-03-20 17:34:20,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:34:20,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:34:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:20,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:34:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:20,447 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:34:20,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:34:20,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933291482] [2022-03-20 17:34:20,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933291482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:20,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:20,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:20,448 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:34:20,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1279934208] [2022-03-20 17:34:20,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1279934208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:20,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:20,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:20,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688848016] [2022-03-20 17:34:20,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:34:20,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:34:20,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:20,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:34:20,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:34:20,452 INFO L87 Difference]: Start difference. First operand 250 states and 409 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 17:34:22,956 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 17:34:24,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:26,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:27,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:34:27,298 INFO L93 Difference]: Finished difference Result 604 states and 981 transitions. [2022-03-20 17:34:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:34:27,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 70 [2022-03-20 17:34:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:34:27,300 INFO L225 Difference]: With dead ends: 604 [2022-03-20 17:34:27,300 INFO L226 Difference]: Without dead ends: 369 [2022-03-20 17:34:27,300 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 17:34:27,301 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 135 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-20 17:34:27,301 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 364 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-20 17:34:27,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-03-20 17:34:27,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 276. [2022-03-20 17:34:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.6568265682656826) internal successors, (449), 271 states have internal predecessors, (449), 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 17:34:27,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 453 transitions. [2022-03-20 17:34:27,317 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 453 transitions. Word has length 70 [2022-03-20 17:34:27,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:34:27,318 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 453 transitions. [2022-03-20 17:34:27,318 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 17:34:27,318 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 453 transitions. [2022-03-20 17:34:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-20 17:34:27,320 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:34:27,320 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 17:34:27,321 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 17:34:27,321 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:34:27,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:34:27,321 INFO L85 PathProgramCache]: Analyzing trace with hash 781922117, now seen corresponding path program 1 times [2022-03-20 17:34:27,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:27,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [456504878] [2022-03-20 17:34:27,334 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:34:27,334 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:34:27,335 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:34:27,335 INFO L85 PathProgramCache]: Analyzing trace with hash 781922117, now seen corresponding path program 2 times [2022-03-20 17:34:27,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:34:27,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411452300] [2022-03-20 17:34:27,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:34:27,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:34:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:27,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:34:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:27,459 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:34:27,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:34:27,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411452300] [2022-03-20 17:34:27,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411452300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:27,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:27,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:27,460 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:34:27,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [456504878] [2022-03-20 17:34:27,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [456504878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:27,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:27,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:27,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671598459] [2022-03-20 17:34:27,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:34:27,461 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:34:27,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:27,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:34:27,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:34:27,462 INFO L87 Difference]: Start difference. First operand 276 states and 453 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 17:34:31,109 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 17:34:32,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:34:32,310 INFO L93 Difference]: Finished difference Result 616 states and 998 transitions. [2022-03-20 17:34:32,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:34:32,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 71 [2022-03-20 17:34:32,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:34:32,312 INFO L225 Difference]: With dead ends: 616 [2022-03-20 17:34:32,312 INFO L226 Difference]: Without dead ends: 355 [2022-03-20 17:34:32,313 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 17:34:32,314 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 134 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-20 17:34:32,314 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 400 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-20 17:34:32,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-20 17:34:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 276. [2022-03-20 17:34:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.6457564575645756) internal successors, (446), 271 states have internal predecessors, (446), 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 17:34:32,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 450 transitions. [2022-03-20 17:34:32,324 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 450 transitions. Word has length 71 [2022-03-20 17:34:32,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:34:32,324 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 450 transitions. [2022-03-20 17:34:32,325 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 17:34:32,325 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 450 transitions. [2022-03-20 17:34:32,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-20 17:34:32,325 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:34:32,325 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 17:34:32,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 17:34:32,326 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:34:32,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:34:32,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1867037651, now seen corresponding path program 1 times [2022-03-20 17:34:32,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:32,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1690081741] [2022-03-20 17:34:32,330 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:34:32,331 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:34:32,331 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:34:32,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1867037651, now seen corresponding path program 2 times [2022-03-20 17:34:32,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:34:32,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283576051] [2022-03-20 17:34:32,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:34:32,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:34:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:32,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:34:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:32,456 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:34:32,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:34:32,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283576051] [2022-03-20 17:34:32,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283576051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:32,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:32,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:32,457 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:34:32,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1690081741] [2022-03-20 17:34:32,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1690081741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:32,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:32,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:32,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144567154] [2022-03-20 17:34:32,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:34:32,458 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:34:32,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:32,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:34:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:34:32,459 INFO L87 Difference]: Start difference. First operand 276 states and 450 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 17:34:34,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:36,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:38,433 WARN L534 Checker$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 17:34:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:34:38,976 INFO L93 Difference]: Finished difference Result 692 states and 1126 transitions. [2022-03-20 17:34:38,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:34:38,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 71 [2022-03-20 17:34:38,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:34:38,979 INFO L225 Difference]: With dead ends: 692 [2022-03-20 17:34:38,979 INFO L226 Difference]: Without dead ends: 431 [2022-03-20 17:34:38,980 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 17:34:38,980 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 127 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 17:34:38,980 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 414 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 17:34:38,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-03-20 17:34:38,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 340. [2022-03-20 17:34:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 335 states have (on average 1.653731343283582) internal successors, (554), 335 states have internal predecessors, (554), 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 17:34:38,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 558 transitions. [2022-03-20 17:34:38,994 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 558 transitions. Word has length 71 [2022-03-20 17:34:38,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:34:38,994 INFO L478 AbstractCegarLoop]: Abstraction has 340 states and 558 transitions. [2022-03-20 17:34:38,994 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 17:34:38,994 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 558 transitions. [2022-03-20 17:34:38,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 17:34:38,995 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:34:38,995 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 17:34:38,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 17:34:38,995 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:34:38,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:34:38,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1020686534, now seen corresponding path program 1 times [2022-03-20 17:34:38,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:38,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [532741576] [2022-03-20 17:34:39,002 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:34:39,002 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:34:39,002 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:34:39,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1020686534, now seen corresponding path program 2 times [2022-03-20 17:34:39,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:34:39,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2495206] [2022-03-20 17:34:39,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:34:39,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:34:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:34:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:34:39,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:34:39,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2495206] [2022-03-20 17:34:39,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2495206] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:39,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:39,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:39,113 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:34:39,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [532741576] [2022-03-20 17:34:39,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [532741576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:39,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:39,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:39,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623780519] [2022-03-20 17:34:39,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:34:39,114 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:34:39,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:39,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:34:39,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:34:39,114 INFO L87 Difference]: Start difference. First operand 340 states and 558 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 17:34:40,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:42,719 WARN L534 Checker$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 17:34:44,740 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 17:34:45,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:34:45,591 INFO L93 Difference]: Finished difference Result 784 states and 1276 transitions. [2022-03-20 17:34:45,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:34:45,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 83 [2022-03-20 17:34:45,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:34:45,594 INFO L225 Difference]: With dead ends: 784 [2022-03-20 17:34:45,594 INFO L226 Difference]: Without dead ends: 459 [2022-03-20 17:34:45,595 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 17:34:45,595 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 123 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:34:45,595 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 378 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 494 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 17:34:45,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-03-20 17:34:45,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 377. [2022-03-20 17:34:45,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 372 states have (on average 1.6559139784946237) internal successors, (616), 372 states have internal predecessors, (616), 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 17:34:45,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 620 transitions. [2022-03-20 17:34:45,609 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 620 transitions. Word has length 83 [2022-03-20 17:34:45,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:34:45,610 INFO L478 AbstractCegarLoop]: Abstraction has 377 states and 620 transitions. [2022-03-20 17:34:45,610 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 17:34:45,610 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 620 transitions. [2022-03-20 17:34:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 17:34:45,614 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:34:45,614 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 17:34:45,614 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 17:34:45,614 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:34:45,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:34:45,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1799502110, now seen corresponding path program 1 times [2022-03-20 17:34:45,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:45,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1754498413] [2022-03-20 17:34:45,623 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:34:45,623 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:34:45,623 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:34:45,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1799502110, now seen corresponding path program 2 times [2022-03-20 17:34:45,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:34:45,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987929669] [2022-03-20 17:34:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:34:45,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:34:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:34:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-03-20 17:34:45,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:34:45,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987929669] [2022-03-20 17:34:45,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987929669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:45,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:45,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:45,722 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:34:45,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1754498413] [2022-03-20 17:34:45,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1754498413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:45,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:45,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:45,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541911880] [2022-03-20 17:34:45,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:34:45,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:34:45,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:45,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:34:45,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:34:45,723 INFO L87 Difference]: Start difference. First operand 377 states and 620 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:48,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:49,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:34:49,498 INFO L93 Difference]: Finished difference Result 858 states and 1399 transitions. [2022-03-20 17:34:49,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:34:49,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 17:34:49,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:34:49,500 INFO L225 Difference]: With dead ends: 858 [2022-03-20 17:34:49,501 INFO L226 Difference]: Without dead ends: 496 [2022-03-20 17:34:49,501 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 17:34:49,502 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 144 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 17:34:49,502 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 402 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 17:34:49,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-03-20 17:34:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 393. [2022-03-20 17:34:49,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.6391752577319587) internal successors, (636), 388 states have internal predecessors, (636), 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 17:34:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 640 transitions. [2022-03-20 17:34:49,521 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 640 transitions. Word has length 84 [2022-03-20 17:34:49,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:34:49,521 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 640 transitions. [2022-03-20 17:34:49,521 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:49,521 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 640 transitions. [2022-03-20 17:34:49,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 17:34:49,522 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:34:49,522 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 17:34:49,523 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 17:34:49,523 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:34:49,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:34:49,523 INFO L85 PathProgramCache]: Analyzing trace with hash 241595718, now seen corresponding path program 1 times [2022-03-20 17:34:49,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:49,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1441591575] [2022-03-20 17:34:49,529 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:34:49,529 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:34:49,529 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:34:49,529 INFO L85 PathProgramCache]: Analyzing trace with hash 241595718, now seen corresponding path program 2 times [2022-03-20 17:34:49,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:34:49,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650499859] [2022-03-20 17:34:49,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:34:49,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:34:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:49,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:34:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 17:34:49,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:34:49,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650499859] [2022-03-20 17:34:49,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650499859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:49,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:49,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:49,618 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:34:49,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1441591575] [2022-03-20 17:34:49,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1441591575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:49,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:49,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:49,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600149499] [2022-03-20 17:34:49,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:34:49,618 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:34:49,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:49,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:34:49,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:34:49,619 INFO L87 Difference]: Start difference. First operand 393 states and 640 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 17:34:52,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:54,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:34:54,282 INFO L93 Difference]: Finished difference Result 799 states and 1301 transitions. [2022-03-20 17:34:54,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:34:54,283 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 84 [2022-03-20 17:34:54,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:34:54,284 INFO L225 Difference]: With dead ends: 799 [2022-03-20 17:34:54,284 INFO L226 Difference]: Without dead ends: 421 [2022-03-20 17:34:54,285 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 17:34:54,286 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 21 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 17:34:54,286 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 17:34:54,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-03-20 17:34:54,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 404. [2022-03-20 17:34:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.6390977443609023) internal successors, (654), 399 states have internal predecessors, (654), 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 17:34:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 658 transitions. [2022-03-20 17:34:54,301 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 658 transitions. Word has length 84 [2022-03-20 17:34:54,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:34:54,302 INFO L478 AbstractCegarLoop]: Abstraction has 404 states and 658 transitions. [2022-03-20 17:34:54,302 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 17:34:54,302 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 658 transitions. [2022-03-20 17:34:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 17:34:54,303 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:34:54,303 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-03-20 17:34:54,303 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 17:34:54,303 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:34:54,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:34:54,303 INFO L85 PathProgramCache]: Analyzing trace with hash -126051705, now seen corresponding path program 1 times [2022-03-20 17:34:54,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:54,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [71294083] [2022-03-20 17:34:54,310 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:34:54,310 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:34:54,310 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:34:54,310 INFO L85 PathProgramCache]: Analyzing trace with hash -126051705, now seen corresponding path program 2 times [2022-03-20 17:34:54,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:34:54,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308586919] [2022-03-20 17:34:54,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:34:54,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:34:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:54,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:34:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:34:54,392 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-03-20 17:34:54,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:34:54,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308586919] [2022-03-20 17:34:54,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308586919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:54,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:54,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:54,392 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:34:54,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [71294083] [2022-03-20 17:34:54,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [71294083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:34:54,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:34:54,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:34:54,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990533129] [2022-03-20 17:34:54,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:34:54,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:34:54,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:34:54,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:34:54,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:34:54,393 INFO L87 Difference]: Start difference. First operand 404 states and 658 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:34:55,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:57,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:34:59,547 WARN L534 Checker$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 17:35:01,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:35:01,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:35:01,832 INFO L93 Difference]: Finished difference Result 861 states and 1390 transitions. [2022-03-20 17:35:01,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:35:01,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-20 17:35:01,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:35:01,834 INFO L225 Difference]: With dead ends: 861 [2022-03-20 17:35:01,834 INFO L226 Difference]: Without dead ends: 483 [2022-03-20 17:35:01,835 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 17:35:01,836 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 143 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:35:01,836 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 378 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-03-20 17:35:01,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-03-20 17:35:01,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 404. [2022-03-20 17:35:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.619047619047619) internal successors, (646), 399 states have internal predecessors, (646), 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 17:35:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 650 transitions. [2022-03-20 17:35:01,859 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 650 transitions. Word has length 85 [2022-03-20 17:35:01,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:35:01,859 INFO L478 AbstractCegarLoop]: Abstraction has 404 states and 650 transitions. [2022-03-20 17:35:01,859 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:35:01,859 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 650 transitions. [2022-03-20 17:35:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-20 17:35:01,860 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:35:01,860 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2022-03-20 17:35:01,860 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 17:35:01,860 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:35:01,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:35:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1192210051, now seen corresponding path program 1 times [2022-03-20 17:35:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:01,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1185724885] [2022-03-20 17:35:01,871 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:35:01,872 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:35:01,872 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:35:01,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1192210051, now seen corresponding path program 2 times [2022-03-20 17:35:01,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:35:01,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56534391] [2022-03-20 17:35:01,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:35:01,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:35:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:35:01,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:35:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:35:01,959 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 17:35:01,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:35:01,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56534391] [2022-03-20 17:35:01,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56534391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:01,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:01,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:35:01,960 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:35:01,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1185724885] [2022-03-20 17:35:01,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1185724885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:35:01,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:35:01,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:35:01,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631333535] [2022-03-20 17:35:01,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:35:01,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:35:01,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:01,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:35:01,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:35:01,961 INFO L87 Difference]: Start difference. First operand 404 states and 650 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 17:35:04,973 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 17:35:06,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:35:07,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:35:07,991 INFO L93 Difference]: Finished difference Result 860 states and 1374 transitions. [2022-03-20 17:35:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:35:07,991 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 98 [2022-03-20 17:35:07,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:35:07,993 INFO L225 Difference]: With dead ends: 860 [2022-03-20 17:35:07,993 INFO L226 Difference]: Without dead ends: 482 [2022-03-20 17:35:07,993 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 17:35:07,994 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 148 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 17:35:07,994 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 380 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 17:35:07,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-03-20 17:35:08,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 404. [2022-03-20 17:35:08,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.5964912280701755) internal successors, (637), 399 states have internal predecessors, (637), 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 17:35:08,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 641 transitions. [2022-03-20 17:35:08,013 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 641 transitions. Word has length 98 [2022-03-20 17:35:08,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:35:08,013 INFO L478 AbstractCegarLoop]: Abstraction has 404 states and 641 transitions. [2022-03-20 17:35:08,013 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 17:35:08,013 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 641 transitions. [2022-03-20 17:35:08,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-20 17:35:08,014 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:35:08,014 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2022-03-20 17:35:08,014 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 17:35:08,014 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:35:08,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:35:08,015 INFO L85 PathProgramCache]: Analyzing trace with hash 96471313, now seen corresponding path program 1 times [2022-03-20 17:35:08,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:35:08,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [485103283] [2022-03-20 17:35:08,083 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 18 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-20 17:35:08,084 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:35:08,084 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:35:08,086 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:35:08,086 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-03-20 17:35:08,087 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 17:35:08,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1675195156, now seen corresponding path program 1 times [2022-03-20 17:35:08,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:35:08,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472102186] [2022-03-20 17:35:08,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:35:08,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:35:08,134 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 17:35:08,134 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 17:35:08,139 INFO L158 Benchmark]: Toolchain (without parser) took 72529.34ms. Allocated memory was 183.5MB in the beginning and 220.2MB in the end (delta: 36.7MB). Free memory was 130.3MB in the beginning and 132.0MB in the end (delta: -1.7MB). Peak memory consumption was 35.0MB. Max. memory is 8.0GB. [2022-03-20 17:35:08,139 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory was 149.2MB in the beginning and 149.0MB in the end (delta: 151.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 17:35:08,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.31ms. Allocated memory is still 183.5MB. Free memory was 130.1MB in the beginning and 138.6MB in the end (delta: -8.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-20 17:35:08,139 INFO L158 Benchmark]: Boogie Preprocessor took 83.08ms. Allocated memory is still 183.5MB. Free memory was 138.6MB in the beginning and 130.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-20 17:35:08,140 INFO L158 Benchmark]: RCFGBuilder took 1167.64ms. Allocated memory was 183.5MB in the beginning and 220.2MB in the end (delta: 36.7MB). Free memory was 130.8MB in the beginning and 155.9MB in the end (delta: -25.1MB). Peak memory consumption was 44.6MB. Max. memory is 8.0GB. [2022-03-20 17:35:08,140 INFO L158 Benchmark]: TraceAbstraction took 70821.44ms. Allocated memory is still 220.2MB. Free memory was 155.3MB in the beginning and 132.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.4MB. Max. memory is 8.0GB. [2022-03-20 17:35:08,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory was 149.2MB in the beginning and 149.0MB in the end (delta: 151.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 452.31ms. Allocated memory is still 183.5MB. Free memory was 130.1MB in the beginning and 138.6MB in the end (delta: -8.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 83.08ms. Allocated memory is still 183.5MB. Free memory was 138.6MB in the beginning and 130.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1167.64ms. Allocated memory was 183.5MB in the beginning and 220.2MB in the end (delta: 36.7MB). Free memory was 130.8MB in the beginning and 155.9MB in the end (delta: -25.1MB). Peak memory consumption was 44.6MB. Max. memory is 8.0GB. * TraceAbstraction took 70821.44ms. Allocated memory is still 220.2MB. Free memory was 155.3MB in the beginning and 132.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.4MB. 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 17:35:08,179 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...