/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 17:38:24,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 17:38:24,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 17:38:24,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 17:38:24,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 17:38:24,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 17:38:24,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 17:38:24,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 17:38:24,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 17:38:24,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 17:38:24,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 17:38:24,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 17:38:24,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 17:38:24,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 17:38:24,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 17:38:24,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 17:38:24,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 17:38:24,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 17:38:24,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 17:38:24,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 17:38:24,959 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 17:38:24,971 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 17:38:24,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 17:38:24,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 17:38:24,974 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 17:38:24,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 17:38:24,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 17:38:24,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 17:38:24,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 17:38:24,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 17:38:24,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 17:38:24,975 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 17:38:24,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 17:38:24,976 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 17:38:24,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 17:38:24,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 17:38:24,976 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 17:38:24,976 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 17:38:24,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 17:38:24,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 17:38:24,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 17:38:24,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 17:38:24,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 17:38:24,978 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 17:38:25,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 17:38:25,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 17:38:25,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 17:38:25,363 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 17:38:25,364 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 17:38:25,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2021-02-23 17:38:25,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37d3b537c/8f0f560891804151b3fff94b1204dd90/FLAG14434124c [2021-02-23 17:38:26,111 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 17:38:26,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2021-02-23 17:38:26,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37d3b537c/8f0f560891804151b3fff94b1204dd90/FLAG14434124c [2021-02-23 17:38:26,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37d3b537c/8f0f560891804151b3fff94b1204dd90 [2021-02-23 17:38:26,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 17:38:26,442 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 17:38:26,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 17:38:26,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 17:38:26,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 17:38:26,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:38:26" (1/1) ... [2021-02-23 17:38:26,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c663ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26, skipping insertion in model container [2021-02-23 17:38:26,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:38:26" (1/1) ... [2021-02-23 17:38:26,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 17:38:26,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 17:38:26,790 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c[37452,37465] [2021-02-23 17:38:26,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:38:26,832 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 17:38:26,954 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c[37452,37465] [2021-02-23 17:38:26,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:38:26,973 INFO L208 MainTranslator]: Completed translation [2021-02-23 17:38:26,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26 WrapperNode [2021-02-23 17:38:26,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 17:38:26,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 17:38:26,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 17:38:26,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 17:38:26,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26" (1/1) ... [2021-02-23 17:38:26,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26" (1/1) ... [2021-02-23 17:38:27,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26" (1/1) ... [2021-02-23 17:38:27,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26" (1/1) ... [2021-02-23 17:38:27,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26" (1/1) ... [2021-02-23 17:38:27,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26" (1/1) ... [2021-02-23 17:38:27,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26" (1/1) ... [2021-02-23 17:38:27,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 17:38:27,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 17:38:27,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 17:38:27,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 17:38:27,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 17:38:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 17:38:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 17:38:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 17:38:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2021-02-23 17:38:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 17:38:27,169 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 17:38:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 17:38:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 17:38:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 17:38:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 17:38:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-23 17:38:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2021-02-23 17:38:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 17:38:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 17:38:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 17:38:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 17:38:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 17:38:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 17:38:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 17:38:27,703 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-02-23 17:38:28,448 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2021-02-23 17:38:28,448 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2021-02-23 17:38:28,466 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 17:38:28,467 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 17:38:28,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:38:28 BoogieIcfgContainer [2021-02-23 17:38:28,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 17:38:28,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 17:38:28,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 17:38:28,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 17:38:28,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 05:38:26" (1/3) ... [2021-02-23 17:38:28,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a400b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:38:28, skipping insertion in model container [2021-02-23 17:38:28,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:26" (2/3) ... [2021-02-23 17:38:28,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a400b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:38:28, skipping insertion in model container [2021-02-23 17:38:28,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:38:28" (3/3) ... [2021-02-23 17:38:28,479 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2021-02-23 17:38:28,486 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 17:38:28,492 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 17:38:28,509 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 17:38:28,533 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 17:38:28,534 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 17:38:28,534 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 17:38:28,534 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 17:38:28,534 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 17:38:28,534 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 17:38:28,535 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 17:38:28,535 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 17:38:28,561 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2021-02-23 17:38:28,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-02-23 17:38:28,581 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:28,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:28,583 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:28,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:28,589 INFO L82 PathProgramCache]: Analyzing trace with hash -114767798, now seen corresponding path program 1 times [2021-02-23 17:38:28,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:28,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670772809] [2021-02-23 17:38:28,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:28,704 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:29,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:29,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:29,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:29,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:38:29,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:29,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:29,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:29,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:29,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:38:29,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670772809] [2021-02-23 17:38:29,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:29,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 17:38:29,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701773295] [2021-02-23 17:38:29,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 17:38:29,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:29,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 17:38:29,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 17:38:29,227 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 4 states. [2021-02-23 17:38:30,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:30,383 INFO L93 Difference]: Finished difference Result 586 states and 762 transitions. [2021-02-23 17:38:30,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 17:38:30,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 150 [2021-02-23 17:38:30,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:30,401 INFO L225 Difference]: With dead ends: 586 [2021-02-23 17:38:30,401 INFO L226 Difference]: Without dead ends: 325 [2021-02-23 17:38:30,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:38:30,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-02-23 17:38:30,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2021-02-23 17:38:30,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2021-02-23 17:38:30,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 383 transitions. [2021-02-23 17:38:30,513 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 383 transitions. Word has length 150 [2021-02-23 17:38:30,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:30,514 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 383 transitions. [2021-02-23 17:38:30,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 17:38:30,514 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 383 transitions. [2021-02-23 17:38:30,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-23 17:38:30,518 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:30,519 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:30,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 17:38:30,519 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:30,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:30,520 INFO L82 PathProgramCache]: Analyzing trace with hash 640746867, now seen corresponding path program 1 times [2021-02-23 17:38:30,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:30,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1743289301] [2021-02-23 17:38:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:32,218 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2021-02-23 17:38:32,233 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 17:38:32,235 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:32,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:32,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:32,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:32,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:38:32,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:32,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:32,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:32,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:32,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:32,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:38:32,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1743289301] [2021-02-23 17:38:32,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:32,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 17:38:32,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336558791] [2021-02-23 17:38:32,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 17:38:32,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:32,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 17:38:32,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 17:38:32,406 INFO L87 Difference]: Start difference. First operand 325 states and 383 transitions. Second operand 4 states. [2021-02-23 17:38:33,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:33,154 INFO L93 Difference]: Finished difference Result 542 states and 665 transitions. [2021-02-23 17:38:33,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 17:38:33,155 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 168 [2021-02-23 17:38:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:33,159 INFO L225 Difference]: With dead ends: 542 [2021-02-23 17:38:33,159 INFO L226 Difference]: Without dead ends: 353 [2021-02-23 17:38:33,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:38:33,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-02-23 17:38:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 343. [2021-02-23 17:38:33,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2021-02-23 17:38:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 406 transitions. [2021-02-23 17:38:33,231 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 406 transitions. Word has length 168 [2021-02-23 17:38:33,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:33,235 INFO L480 AbstractCegarLoop]: Abstraction has 343 states and 406 transitions. [2021-02-23 17:38:33,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 17:38:33,237 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 406 transitions. [2021-02-23 17:38:33,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-23 17:38:33,247 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:33,247 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:33,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 17:38:33,248 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:33,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:33,249 INFO L82 PathProgramCache]: Analyzing trace with hash -70818322, now seen corresponding path program 1 times [2021-02-23 17:38:33,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:33,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843571684] [2021-02-23 17:38:33,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:35,398 WARN L202 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2021-02-23 17:38:35,408 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 17:38:35,412 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:35,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:35,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:35,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:35,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:35,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:35,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:35,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:35,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:35,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:35,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:35,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:35,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:35,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:35,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:38:35,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843571684] [2021-02-23 17:38:35,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:35,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 17:38:35,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638469453] [2021-02-23 17:38:35,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 17:38:35,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:35,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 17:38:35,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:38:35,674 INFO L87 Difference]: Start difference. First operand 343 states and 406 transitions. Second operand 5 states. [2021-02-23 17:38:37,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:37,295 INFO L93 Difference]: Finished difference Result 893 states and 1150 transitions. [2021-02-23 17:38:37,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 17:38:37,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 175 [2021-02-23 17:38:37,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:37,300 INFO L225 Difference]: With dead ends: 893 [2021-02-23 17:38:37,301 INFO L226 Difference]: Without dead ends: 686 [2021-02-23 17:38:37,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-23 17:38:37,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-02-23 17:38:37,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 390. [2021-02-23 17:38:37,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2021-02-23 17:38:37,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 461 transitions. [2021-02-23 17:38:37,364 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 461 transitions. Word has length 175 [2021-02-23 17:38:37,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:37,365 INFO L480 AbstractCegarLoop]: Abstraction has 390 states and 461 transitions. [2021-02-23 17:38:37,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 17:38:37,365 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 461 transitions. [2021-02-23 17:38:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-02-23 17:38:37,368 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:37,368 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:37,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 17:38:37,369 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:37,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:37,369 INFO L82 PathProgramCache]: Analyzing trace with hash 677004724, now seen corresponding path program 1 times [2021-02-23 17:38:37,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:37,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878167400] [2021-02-23 17:38:37,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:39,076 WARN L202 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 120 DAG size of output: 102 [2021-02-23 17:38:40,804 WARN L202 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 120 DAG size of output: 102 [2021-02-23 17:38:42,470 WARN L202 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2021-02-23 17:38:42,472 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 17:38:42,475 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:42,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:42,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:42,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:42,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:42,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:42,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:42,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:42,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:42,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:38:42,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878167400] [2021-02-23 17:38:42,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:42,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 17:38:42,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114401421] [2021-02-23 17:38:42,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 17:38:42,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:42,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 17:38:42,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 17:38:42,609 INFO L87 Difference]: Start difference. First operand 390 states and 461 transitions. Second operand 4 states. [2021-02-23 17:38:43,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:43,442 INFO L93 Difference]: Finished difference Result 885 states and 1087 transitions. [2021-02-23 17:38:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 17:38:43,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 188 [2021-02-23 17:38:43,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:43,447 INFO L225 Difference]: With dead ends: 885 [2021-02-23 17:38:43,447 INFO L226 Difference]: Without dead ends: 631 [2021-02-23 17:38:43,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:38:43,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-02-23 17:38:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 629. [2021-02-23 17:38:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2021-02-23 17:38:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 760 transitions. [2021-02-23 17:38:43,548 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 760 transitions. Word has length 188 [2021-02-23 17:38:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:43,548 INFO L480 AbstractCegarLoop]: Abstraction has 629 states and 760 transitions. [2021-02-23 17:38:43,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 17:38:43,549 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 760 transitions. [2021-02-23 17:38:43,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-02-23 17:38:43,551 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:43,552 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:43,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 17:38:43,552 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:43,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:43,553 INFO L82 PathProgramCache]: Analyzing trace with hash -711684410, now seen corresponding path program 1 times [2021-02-23 17:38:43,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:43,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255373177] [2021-02-23 17:38:43,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:45,348 WARN L202 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2021-02-23 17:38:47,105 WARN L202 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 110 DAG size of output: 101 [2021-02-23 17:38:48,986 WARN L202 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2021-02-23 17:38:48,989 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 17:38:48,991 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:49,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:49,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:49,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:49,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:38:49,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:49,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:49,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:49,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:49,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:38:49,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255373177] [2021-02-23 17:38:49,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:49,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 17:38:49,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906637587] [2021-02-23 17:38:49,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 17:38:49,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:49,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 17:38:49,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 17:38:49,100 INFO L87 Difference]: Start difference. First operand 629 states and 760 transitions. Second operand 4 states. [2021-02-23 17:38:49,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:49,825 INFO L93 Difference]: Finished difference Result 921 states and 1133 transitions. [2021-02-23 17:38:49,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 17:38:49,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 189 [2021-02-23 17:38:49,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:49,830 INFO L225 Difference]: With dead ends: 921 [2021-02-23 17:38:49,830 INFO L226 Difference]: Without dead ends: 667 [2021-02-23 17:38:49,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:38:49,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-02-23 17:38:49,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 649. [2021-02-23 17:38:49,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2021-02-23 17:38:49,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 785 transitions. [2021-02-23 17:38:49,919 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 785 transitions. Word has length 189 [2021-02-23 17:38:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:49,919 INFO L480 AbstractCegarLoop]: Abstraction has 649 states and 785 transitions. [2021-02-23 17:38:49,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 17:38:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 785 transitions. [2021-02-23 17:38:49,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-02-23 17:38:49,922 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:49,923 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:49,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 17:38:49,923 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:49,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:49,924 INFO L82 PathProgramCache]: Analyzing trace with hash -167163589, now seen corresponding path program 1 times [2021-02-23 17:38:49,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:49,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885034864] [2021-02-23 17:38:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:51,695 WARN L202 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2021-02-23 17:38:53,387 WARN L202 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2021-02-23 17:38:55,812 WARN L202 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2021-02-23 17:38:55,814 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 17:38:55,816 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:55,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:55,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:55,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:55,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 17:38:55,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:55,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:55,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:55,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:55,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:38:55,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885034864] [2021-02-23 17:38:55,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:55,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 17:38:55,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11075395] [2021-02-23 17:38:55,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 17:38:55,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:55,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 17:38:55,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 17:38:55,930 INFO L87 Difference]: Start difference. First operand 649 states and 785 transitions. Second operand 4 states. [2021-02-23 17:38:56,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:56,740 INFO L93 Difference]: Finished difference Result 1607 states and 1977 transitions. [2021-02-23 17:38:56,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 17:38:56,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2021-02-23 17:38:56,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:56,746 INFO L225 Difference]: With dead ends: 1607 [2021-02-23 17:38:56,746 INFO L226 Difference]: Without dead ends: 1094 [2021-02-23 17:38:56,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:38:56,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2021-02-23 17:38:56,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1088. [2021-02-23 17:38:56,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2021-02-23 17:38:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1321 transitions. [2021-02-23 17:38:56,914 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1321 transitions. Word has length 196 [2021-02-23 17:38:56,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:56,915 INFO L480 AbstractCegarLoop]: Abstraction has 1088 states and 1321 transitions. [2021-02-23 17:38:56,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 17:38:56,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1321 transitions. [2021-02-23 17:38:56,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-02-23 17:38:56,918 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:56,918 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:56,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 17:38:56,919 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:56,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:56,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1312370735, now seen corresponding path program 1 times [2021-02-23 17:38:56,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:56,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117879983] [2021-02-23 17:38:56,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:58,838 WARN L202 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2021-02-23 17:39:00,775 WARN L202 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 112 DAG size of output: 103 [2021-02-23 17:39:03,230 WARN L202 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2021-02-23 17:39:03,234 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 17:39:03,236 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:39:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:03,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:03,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:03,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:03,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:03,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:03,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:03,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:39:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:03,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:03,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:03,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:39:03,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117879983] [2021-02-23 17:39:03,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:39:03,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 17:39:03,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775338691] [2021-02-23 17:39:03,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 17:39:03,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:39:03,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 17:39:03,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 17:39:03,357 INFO L87 Difference]: Start difference. First operand 1088 states and 1321 transitions. Second operand 4 states. [2021-02-23 17:39:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:39:03,798 INFO L93 Difference]: Finished difference Result 2058 states and 2523 transitions. [2021-02-23 17:39:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 17:39:03,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 197 [2021-02-23 17:39:03,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:39:03,805 INFO L225 Difference]: With dead ends: 2058 [2021-02-23 17:39:03,806 INFO L226 Difference]: Without dead ends: 1106 [2021-02-23 17:39:03,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:39:03,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2021-02-23 17:39:03,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1096. [2021-02-23 17:39:03,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2021-02-23 17:39:03,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1326 transitions. [2021-02-23 17:39:03,967 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1326 transitions. Word has length 197 [2021-02-23 17:39:03,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:39:03,968 INFO L480 AbstractCegarLoop]: Abstraction has 1096 states and 1326 transitions. [2021-02-23 17:39:03,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 17:39:03,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1326 transitions. [2021-02-23 17:39:03,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-23 17:39:03,971 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:39:03,971 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:39:03,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 17:39:03,972 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:39:03,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:39:03,972 INFO L82 PathProgramCache]: Analyzing trace with hash -206936449, now seen corresponding path program 1 times [2021-02-23 17:39:03,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:39:03,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177999218] [2021-02-23 17:39:03,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:39:06,309 WARN L202 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2021-02-23 17:39:08,960 WARN L202 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2021-02-23 17:39:08,963 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 17:39:08,964 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:39:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:09,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:09,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:09,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:09,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 17:39:09,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:09,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:09,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:39:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:09,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:09,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:09,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:39:09,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177999218] [2021-02-23 17:39:09,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:39:09,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 17:39:09,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138304100] [2021-02-23 17:39:09,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 17:39:09,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:39:09,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 17:39:09,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 17:39:09,071 INFO L87 Difference]: Start difference. First operand 1096 states and 1326 transitions. Second operand 4 states. [2021-02-23 17:39:10,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:39:10,056 INFO L93 Difference]: Finished difference Result 2613 states and 3190 transitions. [2021-02-23 17:39:10,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 17:39:10,057 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2021-02-23 17:39:10,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:39:10,066 INFO L225 Difference]: With dead ends: 2613 [2021-02-23 17:39:10,066 INFO L226 Difference]: Without dead ends: 1653 [2021-02-23 17:39:10,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:39:10,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2021-02-23 17:39:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1651. [2021-02-23 17:39:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1651 states. [2021-02-23 17:39:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1993 transitions. [2021-02-23 17:39:10,344 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1993 transitions. Word has length 199 [2021-02-23 17:39:10,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:39:10,345 INFO L480 AbstractCegarLoop]: Abstraction has 1651 states and 1993 transitions. [2021-02-23 17:39:10,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 17:39:10,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1993 transitions. [2021-02-23 17:39:10,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-23 17:39:10,349 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:39:10,349 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:39:10,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 17:39:10,350 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:39:10,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:39:10,350 INFO L82 PathProgramCache]: Analyzing trace with hash -624333055, now seen corresponding path program 1 times [2021-02-23 17:39:10,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:39:10,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996146398] [2021-02-23 17:39:10,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:39:12,704 WARN L202 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2021-02-23 17:39:14,819 WARN L202 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 112 DAG size of output: 106 [2021-02-23 17:39:17,548 WARN L202 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2021-02-23 17:39:17,551 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 17:39:17,553 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:39:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:17,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:17,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:17,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:17,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:17,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:17,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:17,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:39:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:17,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:17,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:17,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:39:17,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996146398] [2021-02-23 17:39:17,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:39:17,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 17:39:17,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913815439] [2021-02-23 17:39:17,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 17:39:17,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:39:17,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 17:39:17,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 17:39:17,656 INFO L87 Difference]: Start difference. First operand 1651 states and 1993 transitions. Second operand 4 states. [2021-02-23 17:39:18,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:39:18,608 INFO L93 Difference]: Finished difference Result 2627 states and 3186 transitions. [2021-02-23 17:39:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 17:39:18,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2021-02-23 17:39:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:39:18,618 INFO L225 Difference]: With dead ends: 2627 [2021-02-23 17:39:18,619 INFO L226 Difference]: Without dead ends: 1667 [2021-02-23 17:39:18,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:39:18,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-02-23 17:39:18,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1665. [2021-02-23 17:39:18,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1665 states. [2021-02-23 17:39:18,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2003 transitions. [2021-02-23 17:39:18,896 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2003 transitions. Word has length 199 [2021-02-23 17:39:18,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:39:18,896 INFO L480 AbstractCegarLoop]: Abstraction has 1665 states and 2003 transitions. [2021-02-23 17:39:18,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 17:39:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2003 transitions. [2021-02-23 17:39:18,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-23 17:39:18,899 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:39:18,899 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:39:18,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 17:39:18,900 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:39:18,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:39:18,901 INFO L82 PathProgramCache]: Analyzing trace with hash 393787019, now seen corresponding path program 1 times [2021-02-23 17:39:18,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:39:18,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939834020] [2021-02-23 17:39:18,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:39:21,371 WARN L202 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-02-23 17:39:24,001 WARN L202 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 131 DAG size of output: 111 [2021-02-23 17:39:24,003 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 17:39:24,005 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:39:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:24,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:24,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:24,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:24,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:24,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:24,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:24,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:24,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:24,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:24,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:24,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:39:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:24,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:24,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 17:39:24,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939834020] [2021-02-23 17:39:24,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:39:24,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 17:39:24,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71437831] [2021-02-23 17:39:24,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 17:39:24,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:39:24,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 17:39:24,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-23 17:39:24,122 INFO L87 Difference]: Start difference. First operand 1665 states and 2003 transitions. Second operand 5 states. [2021-02-23 17:39:26,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:39:26,069 INFO L93 Difference]: Finished difference Result 3399 states and 4119 transitions. [2021-02-23 17:39:26,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 17:39:26,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2021-02-23 17:39:26,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:39:26,083 INFO L225 Difference]: With dead ends: 3399 [2021-02-23 17:39:26,083 INFO L226 Difference]: Without dead ends: 2887 [2021-02-23 17:39:26,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-02-23 17:39:26,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2021-02-23 17:39:26,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1679. [2021-02-23 17:39:26,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1679 states. [2021-02-23 17:39:26,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2022 transitions. [2021-02-23 17:39:26,406 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2022 transitions. Word has length 200 [2021-02-23 17:39:26,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:39:26,406 INFO L480 AbstractCegarLoop]: Abstraction has 1679 states and 2022 transitions. [2021-02-23 17:39:26,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 17:39:26,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2022 transitions. [2021-02-23 17:39:26,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-02-23 17:39:26,409 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:39:26,409 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:39:26,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 17:39:26,410 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:39:26,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:39:26,410 INFO L82 PathProgramCache]: Analyzing trace with hash -981879466, now seen corresponding path program 1 times [2021-02-23 17:39:26,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:39:26,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41177627] [2021-02-23 17:39:26,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:39:28,374 WARN L202 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2021-02-23 17:39:28,384 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-02-23 17:39:28,481 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-02-23 17:39:30,531 WARN L202 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 110 DAG size of output: 101 [2021-02-23 17:39:32,567 WARN L202 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2021-02-23 17:39:32,569 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 17:39:32,570 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:39:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 17:39:32,606 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 17:39:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 17:39:32,655 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 17:39:32,771 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 17:39:32,771 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 17:39:32,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 17:39:32,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 05:39:32 BoogieIcfgContainer [2021-02-23 17:39:32,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 17:39:32,822 INFO L168 Benchmark]: Toolchain (without parser) took 66387.93 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 126.8 MB in the beginning and 319.9 MB in the end (delta: -193.1 MB). Peak memory consumption was 200.8 MB. Max. memory is 8.0 GB. [2021-02-23 17:39:32,828 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 119.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 17:39:32,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.30 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 111.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 17:39:32,835 INFO L168 Benchmark]: Boogie Preprocessor took 74.90 ms. Allocated memory is still 151.0 MB. Free memory was 111.2 MB in the beginning and 108.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 17:39:32,835 INFO L168 Benchmark]: RCFGBuilder took 1418.15 ms. Allocated memory is still 151.0 MB. Free memory was 108.9 MB in the beginning and 79.5 MB in the end (delta: 29.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. [2021-02-23 17:39:32,835 INFO L168 Benchmark]: TraceAbstraction took 64345.26 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 78.9 MB in the beginning and 319.9 MB in the end (delta: -240.9 MB). Peak memory consumption was 153.3 MB. Max. memory is 8.0 GB. [2021-02-23 17:39:32,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 119.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 530.30 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 111.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.90 ms. Allocated memory is still 151.0 MB. Free memory was 111.2 MB in the beginning and 108.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1418.15 ms. Allocated memory is still 151.0 MB. Free memory was 108.9 MB in the beginning and 79.5 MB in the end (delta: 29.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 64345.26 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 78.9 MB in the beginning and 319.9 MB in the end (delta: -240.9 MB). Peak memory consumption was 153.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 616]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 303. Possible FailurePath: [L625] int __retres1 ; [L629] CALL ssl3_connect() [L11] int s__info_callback = __VERIFIER_nondet_int(); [L12] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] unsigned int s__version = __VERIFIER_nondet_uint(); [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int(); [L20] int s__wbio = __VERIFIER_nondet_int(); [L21] int s__hit = __VERIFIER_nondet_int(); [L22] int s__rwstate ; [L23] int s__init_buf___0 ; [L24] int s__debug = __VERIFIER_nondet_int(); [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L27] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L28] unsigned int s__ctx__stats__sess_connect ; [L29] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L30] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L54] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L55] int tmp___3 = __VERIFIER_nondet_int(); [L56] int tmp___4 = __VERIFIER_nondet_int(); [L57] int tmp___5 = __VERIFIER_nondet_int(); [L58] int tmp___6 = __VERIFIER_nondet_int(); [L59] int tmp___7 = __VERIFIER_nondet_int(); [L60] int tmp___8 = __VERIFIER_nondet_int(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int blastFlag ; [L63] int ag_X ; [L64] int ag_Y ; [L65] int ag_Z ; [L66] int __retres60 ; [L69] s__state = 12292 [L70] blastFlag = 0 [L71] tmp = __VERIFIER_nondet_int() [L72] cb = 0 [L73] ret = -1 [L74] skip = 0 [L75] tmp___0 = 0 [L76] COND TRUE s__info_callback != 0 [L77] cb = s__info_callback [L85] s__in_handshake = s__in_handshake + 1 [L86] COND FALSE !(tmp___1 + 12288) [L95] COND TRUE \read(s__hit) [L96] ag_Y = 208 [L101] COND TRUE 1 [L103] state = s__state [L104] COND TRUE s__state == 12292 [L207] s__new_session = 1 [L208] s__state = 4096 [L209] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L214] s__server = 0 [L215] COND TRUE cb != 0 [L220] COND FALSE !(s__version + 65280 != 768) [L226] s__type = 4096 [L227] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L245] COND FALSE !(! tmp___4) [L251] COND FALSE !(! tmp___5) [L257] s__state = 4368 [L258] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L259] s__init_num = 0 [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND TRUE s__state == 4368 [L263] s__shutdown = 0 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 0 [L266] blastFlag = 1 [L270] COND FALSE !(ret <= 0) [L275] s__state = 4384 [L276] ag_X = s__state - 32 [L277] s__init_num = 0 [L278] COND FALSE !((unsigned long )s__bbio != (unsigned long )s__wbio) [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND FALSE !(s__state == 4368) [L122] COND FALSE !(s__state == 4369) [L125] COND TRUE s__state == 4384 [L286] ret = __VERIFIER_nondet_int() [L287] COND TRUE blastFlag == 1 [L288] blastFlag = 2 [L296] COND FALSE !(ret <= 0) [L301] s__state = ag_X [L302] COND TRUE \read(s__hit) [L303] s__state = s__state | ag_Y [L307] s__init_num = 0 [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND FALSE !(s__state == 4368) [L122] COND FALSE !(s__state == 4369) [L125] COND FALSE !(s__state == 4384) [L128] COND FALSE !(s__state == 4385) [L131] COND FALSE !(s__state == 4400) [L134] COND FALSE !(s__state == 4401) [L137] COND FALSE !(s__state == 4416) [L140] COND FALSE !(s__state == 4417) [L143] COND TRUE s__state == 4432 [L353] ret = __VERIFIER_nondet_int() [L354] COND TRUE blastFlag <= 5 [L616] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 362 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 64.2s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4735 SDtfs, 6309 SDslu, 189 SDs, 0 SdLazy, 4733 SolverSat, 147 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1679occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1554 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...