/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-b7b32d2 [2021-02-21 20:11:04,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 20:11:04,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 20:11:04,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 20:11:04,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 20:11:04,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 20:11:04,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 20:11:04,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 20:11:04,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 20:11:04,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 20:11:04,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 20:11:04,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 20:11:04,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 20:11:04,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 20:11:04,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 20:11:05,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 20:11:05,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 20:11:05,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 20:11:05,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 20:11:05,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 20:11:05,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 20:11:05,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 20:11:05,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 20:11:05,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 20:11:05,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 20:11:05,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 20:11:05,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 20:11:05,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 20:11:05,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 20:11:05,100 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 20:11:05,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 20:11:05,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 20:11:05,102 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 20:11:05,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 20:11:05,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 20:11:05,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 20:11:05,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 20:11:05,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 20:11:05,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 20:11:05,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 20:11:05,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 20:11:05,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 20:11:05,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 20:11:05,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 20:11:05,105 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 20:11:05,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 20:11:05,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 20:11:05,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:11:05,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 20:11:05,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 20:11:05,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 20:11:05,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 20:11:05,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 20:11:05,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 20:11:05,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 20:11:05,517 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 20:11:05,518 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 20:11:05,519 INFO L432 ainManager$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 [2021-02-21 20:11:05,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444b5aeea/fcad051da29a4dd89a33612cf2dacec1/FLAGda538db93 [2021-02-21 20:11:06,338 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 20:11:06,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2021-02-21 20:11:06,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444b5aeea/fcad051da29a4dd89a33612cf2dacec1/FLAGda538db93 [2021-02-21 20:11:06,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444b5aeea/fcad051da29a4dd89a33612cf2dacec1 [2021-02-21 20:11:06,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 20:11:06,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 20:11:06,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 20:11:06,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 20:11:06,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 20:11:06,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:11:06" (1/1) ... [2021-02-21 20:11:06,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12bb41fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:06, skipping insertion in model container [2021-02-21 20:11:06,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:11:06" (1/1) ... [2021-02-21 20:11:06,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 20:11:06,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 20:11:07,042 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] [2021-02-21 20:11:07,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:11:07,060 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 20:11:07,142 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] [2021-02-21 20:11:07,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:11:07,176 INFO L208 MainTranslator]: Completed translation [2021-02-21 20:11:07,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:07 WrapperNode [2021-02-21 20:11:07,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 20:11:07,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 20:11:07,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 20:11:07,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 20:11:07,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:07" (1/1) ... [2021-02-21 20:11:07,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:07" (1/1) ... [2021-02-21 20:11:07,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:07" (1/1) ... [2021-02-21 20:11:07,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:07" (1/1) ... [2021-02-21 20:11:07,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:07" (1/1) ... [2021-02-21 20:11:07,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:07" (1/1) ... [2021-02-21 20:11:07,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:07" (1/1) ... [2021-02-21 20:11:07,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 20:11:07,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 20:11:07,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 20:11:07,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 20:11:07,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:07" (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 [2021-02-21 20:11:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 20:11:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 20:11:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 20:11:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2021-02-21 20:11:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 20:11:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 20:11:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 20:11:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 20:11:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 20:11:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 20:11:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-21 20:11:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2021-02-21 20:11:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 20:11:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 20:11:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 20:11:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 20:11:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 20:11:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 20:11:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 20:11:07,841 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-02-21 20:11:08,757 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2021-02-21 20:11:08,757 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2021-02-21 20:11:08,773 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 20:11:08,774 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 20:11:08,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:11:08 BoogieIcfgContainer [2021-02-21 20:11:08,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 20:11:08,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 20:11:08,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 20:11:08,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 20:11:08,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 08:11:06" (1/3) ... [2021-02-21 20:11:08,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208cb105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:11:08, skipping insertion in model container [2021-02-21 20:11:08,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:11:07" (2/3) ... [2021-02-21 20:11:08,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208cb105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:11:08, skipping insertion in model container [2021-02-21 20:11:08,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:11:08" (3/3) ... [2021-02-21 20:11:08,786 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2021-02-21 20:11:08,793 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 20:11:08,798 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 20:11:08,816 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 20:11:08,841 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 20:11:08,841 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 20:11:08,841 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 20:11:08,842 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 20:11:08,842 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 20:11:08,842 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 20:11:08,842 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 20:11:08,842 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 20:11:08,868 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2021-02-21 20:11:08,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-02-21 20:11:08,889 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:11:08,890 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] [2021-02-21 20:11:08,890 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:11:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:11:08,897 INFO L82 PathProgramCache]: Analyzing trace with hash -114767798, now seen corresponding path program 1 times [2021-02-21 20:11:08,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:11:08,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138548241] [2021-02-21 20:11:08,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:11:08,988 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:11:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:09,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:09,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:09,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:09,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:11:09,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:09,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:09,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:11:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:09,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:09,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:11:09,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138548241] [2021-02-21 20:11:09,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:11:09,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:11:09,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843709585] [2021-02-21 20:11:09,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:11:09,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:11:09,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:11:09,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:11:09,527 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 4 states. [2021-02-21 20:11:10,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:11:10,634 INFO L93 Difference]: Finished difference Result 586 states and 762 transitions. [2021-02-21 20:11:10,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:11:10,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 150 [2021-02-21 20:11:10,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:11:10,651 INFO L225 Difference]: With dead ends: 586 [2021-02-21 20:11:10,651 INFO L226 Difference]: Without dead ends: 325 [2021-02-21 20:11:10,656 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 [2021-02-21 20:11:10,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-02-21 20:11:10,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2021-02-21 20:11:10,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2021-02-21 20:11:10,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 383 transitions. [2021-02-21 20:11:10,816 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 383 transitions. Word has length 150 [2021-02-21 20:11:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:11:10,820 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 383 transitions. [2021-02-21 20:11:10,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:11:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 383 transitions. [2021-02-21 20:11:10,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-21 20:11:10,831 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:11:10,831 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] [2021-02-21 20:11:10,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 20:11:10,832 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:11:10,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:11:10,833 INFO L82 PathProgramCache]: Analyzing trace with hash 640746867, now seen corresponding path program 1 times [2021-02-21 20:11:10,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:11:10,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68691018] [2021-02-21 20:11:10,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:11:12,646 WARN L202 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2021-02-21 20:11:12,670 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:11:12,677 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:11:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:12,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:12,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:12,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:12,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:11:12,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:12,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:12,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:11:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:12,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:12,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:11:12,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68691018] [2021-02-21 20:11:12,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:11:12,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:11:12,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476596215] [2021-02-21 20:11:12,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:11:12,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:11:12,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:11:12,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:11:12,896 INFO L87 Difference]: Start difference. First operand 325 states and 383 transitions. Second operand 4 states. [2021-02-21 20:11:13,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:11:13,659 INFO L93 Difference]: Finished difference Result 542 states and 665 transitions. [2021-02-21 20:11:13,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:11:13,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 168 [2021-02-21 20:11:13,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:11:13,664 INFO L225 Difference]: With dead ends: 542 [2021-02-21 20:11:13,664 INFO L226 Difference]: Without dead ends: 353 [2021-02-21 20:11:13,667 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 [2021-02-21 20:11:13,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-02-21 20:11:13,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 343. [2021-02-21 20:11:13,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2021-02-21 20:11:13,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 406 transitions. [2021-02-21 20:11:13,739 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 406 transitions. Word has length 168 [2021-02-21 20:11:13,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:11:13,740 INFO L480 AbstractCegarLoop]: Abstraction has 343 states and 406 transitions. [2021-02-21 20:11:13,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:11:13,740 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 406 transitions. [2021-02-21 20:11:13,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-21 20:11:13,744 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:11:13,745 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] [2021-02-21 20:11:13,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 20:11:13,745 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:11:13,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:11:13,746 INFO L82 PathProgramCache]: Analyzing trace with hash -70818322, now seen corresponding path program 1 times [2021-02-21 20:11:13,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:11:13,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549035784] [2021-02-21 20:11:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:11:15,896 WARN L202 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2021-02-21 20:11:15,905 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:11:15,911 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:11:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:16,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:16,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:16,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:16,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:11:16,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:16,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:11:16,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:16,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:11:16,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:16,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:16,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:11:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:16,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:16,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:11:16,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549035784] [2021-02-21 20:11:16,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:11:16,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 20:11:16,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105905616] [2021-02-21 20:11:16,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 20:11:16,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:11:16,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 20:11:16,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 20:11:16,126 INFO L87 Difference]: Start difference. First operand 343 states and 406 transitions. Second operand 5 states. [2021-02-21 20:11:17,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:11:17,731 INFO L93 Difference]: Finished difference Result 893 states and 1150 transitions. [2021-02-21 20:11:17,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 20:11:17,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 175 [2021-02-21 20:11:17,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:11:17,736 INFO L225 Difference]: With dead ends: 893 [2021-02-21 20:11:17,737 INFO L226 Difference]: Without dead ends: 686 [2021-02-21 20:11:17,738 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 [2021-02-21 20:11:17,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-02-21 20:11:17,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 390. [2021-02-21 20:11:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2021-02-21 20:11:17,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 461 transitions. [2021-02-21 20:11:17,796 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 461 transitions. Word has length 175 [2021-02-21 20:11:17,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:11:17,796 INFO L480 AbstractCegarLoop]: Abstraction has 390 states and 461 transitions. [2021-02-21 20:11:17,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 20:11:17,797 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 461 transitions. [2021-02-21 20:11:17,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-02-21 20:11:17,800 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:11:17,800 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] [2021-02-21 20:11:17,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 20:11:17,801 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:11:17,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:11:17,801 INFO L82 PathProgramCache]: Analyzing trace with hash 677004724, now seen corresponding path program 1 times [2021-02-21 20:11:17,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:11:17,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218782137] [2021-02-21 20:11:17,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:11:19,496 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 120 DAG size of output: 102 [2021-02-21 20:11:21,218 WARN L202 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 120 DAG size of output: 102 [2021-02-21 20:11:22,894 WARN L202 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2021-02-21 20:11:22,897 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:11:22,899 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:11:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:22,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:22,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:22,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:22,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:11:22,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:22,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:22,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:11:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:22,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:22,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:23,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:11:23,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218782137] [2021-02-21 20:11:23,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:11:23,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:11:23,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175681265] [2021-02-21 20:11:23,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:11:23,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:11:23,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:11:23,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:11:23,029 INFO L87 Difference]: Start difference. First operand 390 states and 461 transitions. Second operand 4 states. [2021-02-21 20:11:23,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:11:23,968 INFO L93 Difference]: Finished difference Result 885 states and 1087 transitions. [2021-02-21 20:11:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:11:23,968 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 188 [2021-02-21 20:11:23,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:11:23,973 INFO L225 Difference]: With dead ends: 885 [2021-02-21 20:11:23,973 INFO L226 Difference]: Without dead ends: 631 [2021-02-21 20:11:23,975 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 [2021-02-21 20:11:23,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-02-21 20:11:24,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 629. [2021-02-21 20:11:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2021-02-21 20:11:24,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 760 transitions. [2021-02-21 20:11:24,065 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 760 transitions. Word has length 188 [2021-02-21 20:11:24,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:11:24,066 INFO L480 AbstractCegarLoop]: Abstraction has 629 states and 760 transitions. [2021-02-21 20:11:24,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:11:24,066 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 760 transitions. [2021-02-21 20:11:24,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-02-21 20:11:24,069 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:11:24,070 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] [2021-02-21 20:11:24,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 20:11:24,070 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:11:24,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:11:24,071 INFO L82 PathProgramCache]: Analyzing trace with hash -711684410, now seen corresponding path program 1 times [2021-02-21 20:11:24,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:11:24,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064800423] [2021-02-21 20:11:24,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:11:25,902 WARN L202 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2021-02-21 20:11:27,674 WARN L202 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 110 DAG size of output: 101 [2021-02-21 20:11:29,619 WARN L202 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2021-02-21 20:11:29,621 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:11:29,623 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:11:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:29,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:29,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:29,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:29,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:11:29,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:29,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:29,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:11:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:29,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:29,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:29,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:11:29,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064800423] [2021-02-21 20:11:29,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:11:29,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:11:29,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432412252] [2021-02-21 20:11:29,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:11:29,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:11:29,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:11:29,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:11:29,732 INFO L87 Difference]: Start difference. First operand 629 states and 760 transitions. Second operand 4 states. [2021-02-21 20:11:30,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:11:30,499 INFO L93 Difference]: Finished difference Result 921 states and 1133 transitions. [2021-02-21 20:11:30,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:11:30,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 189 [2021-02-21 20:11:30,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:11:30,504 INFO L225 Difference]: With dead ends: 921 [2021-02-21 20:11:30,505 INFO L226 Difference]: Without dead ends: 667 [2021-02-21 20:11:30,506 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 [2021-02-21 20:11:30,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-02-21 20:11:30,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 649. [2021-02-21 20:11:30,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2021-02-21 20:11:30,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 785 transitions. [2021-02-21 20:11:30,606 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 785 transitions. Word has length 189 [2021-02-21 20:11:30,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:11:30,606 INFO L480 AbstractCegarLoop]: Abstraction has 649 states and 785 transitions. [2021-02-21 20:11:30,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:11:30,606 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 785 transitions. [2021-02-21 20:11:30,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-02-21 20:11:30,609 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:11:30,610 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] [2021-02-21 20:11:30,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 20:11:30,610 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:11:30,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:11:30,611 INFO L82 PathProgramCache]: Analyzing trace with hash -167163589, now seen corresponding path program 1 times [2021-02-21 20:11:30,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:11:30,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081577490] [2021-02-21 20:11:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:11:32,391 WARN L202 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2021-02-21 20:11:34,088 WARN L202 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2021-02-21 20:11:36,460 WARN L202 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2021-02-21 20:11:36,462 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:11:36,464 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:11:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:36,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:36,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:36,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:36,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:11:36,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:36,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:36,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:11:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:36,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:36,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:36,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:11:36,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081577490] [2021-02-21 20:11:36,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:11:36,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:11:36,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482670022] [2021-02-21 20:11:36,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:11:36,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:11:36,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:11:36,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:11:36,583 INFO L87 Difference]: Start difference. First operand 649 states and 785 transitions. Second operand 4 states. [2021-02-21 20:11:37,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:11:37,380 INFO L93 Difference]: Finished difference Result 1607 states and 1977 transitions. [2021-02-21 20:11:37,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:11:37,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2021-02-21 20:11:37,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:11:37,388 INFO L225 Difference]: With dead ends: 1607 [2021-02-21 20:11:37,388 INFO L226 Difference]: Without dead ends: 1094 [2021-02-21 20:11:37,390 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 [2021-02-21 20:11:37,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2021-02-21 20:11:37,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1088. [2021-02-21 20:11:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2021-02-21 20:11:37,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1321 transitions. [2021-02-21 20:11:37,562 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1321 transitions. Word has length 196 [2021-02-21 20:11:37,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:11:37,562 INFO L480 AbstractCegarLoop]: Abstraction has 1088 states and 1321 transitions. [2021-02-21 20:11:37,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:11:37,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1321 transitions. [2021-02-21 20:11:37,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-02-21 20:11:37,565 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:11:37,566 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] [2021-02-21 20:11:37,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 20:11:37,566 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:11:37,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:11:37,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1312370735, now seen corresponding path program 1 times [2021-02-21 20:11:37,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:11:37,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624053884] [2021-02-21 20:11:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:11:39,483 WARN L202 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2021-02-21 20:11:41,413 WARN L202 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 112 DAG size of output: 103 [2021-02-21 20:11:43,878 WARN L202 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2021-02-21 20:11:43,880 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:11:43,881 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:11:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:43,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:43,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:43,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:43,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:11:43,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:43,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:43,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:11:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:43,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:43,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:11:44,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624053884] [2021-02-21 20:11:44,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:11:44,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:11:44,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281464428] [2021-02-21 20:11:44,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:11:44,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:11:44,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:11:44,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:11:44,017 INFO L87 Difference]: Start difference. First operand 1088 states and 1321 transitions. Second operand 4 states. [2021-02-21 20:11:44,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:11:44,422 INFO L93 Difference]: Finished difference Result 2058 states and 2523 transitions. [2021-02-21 20:11:44,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:11:44,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 197 [2021-02-21 20:11:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:11:44,436 INFO L225 Difference]: With dead ends: 2058 [2021-02-21 20:11:44,436 INFO L226 Difference]: Without dead ends: 1106 [2021-02-21 20:11:44,439 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 [2021-02-21 20:11:44,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2021-02-21 20:11:44,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1096. [2021-02-21 20:11:44,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2021-02-21 20:11:44,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1326 transitions. [2021-02-21 20:11:44,614 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1326 transitions. Word has length 197 [2021-02-21 20:11:44,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:11:44,615 INFO L480 AbstractCegarLoop]: Abstraction has 1096 states and 1326 transitions. [2021-02-21 20:11:44,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:11:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1326 transitions. [2021-02-21 20:11:44,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-21 20:11:44,619 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:11:44,620 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] [2021-02-21 20:11:44,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 20:11:44,620 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:11:44,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:11:44,621 INFO L82 PathProgramCache]: Analyzing trace with hash -206936449, now seen corresponding path program 1 times [2021-02-21 20:11:44,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:11:44,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860577442] [2021-02-21 20:11:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:11:46,746 WARN L202 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2021-02-21 20:11:49,204 WARN L202 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2021-02-21 20:11:49,207 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:11:49,208 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:11:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:49,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:49,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:49,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:49,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:11:49,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:49,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:49,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:11:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:49,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:49,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:49,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:11:49,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860577442] [2021-02-21 20:11:49,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:11:49,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:11:49,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978202121] [2021-02-21 20:11:49,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:11:49,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:11:49,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:11:49,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:11:49,297 INFO L87 Difference]: Start difference. First operand 1096 states and 1326 transitions. Second operand 4 states. [2021-02-21 20:11:50,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:11:50,245 INFO L93 Difference]: Finished difference Result 2613 states and 3190 transitions. [2021-02-21 20:11:50,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:11:50,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2021-02-21 20:11:50,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:11:50,254 INFO L225 Difference]: With dead ends: 2613 [2021-02-21 20:11:50,254 INFO L226 Difference]: Without dead ends: 1653 [2021-02-21 20:11:50,257 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 [2021-02-21 20:11:50,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2021-02-21 20:11:50,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1651. [2021-02-21 20:11:50,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1651 states. [2021-02-21 20:11:50,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1993 transitions. [2021-02-21 20:11:50,468 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1993 transitions. Word has length 199 [2021-02-21 20:11:50,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:11:50,468 INFO L480 AbstractCegarLoop]: Abstraction has 1651 states and 1993 transitions. [2021-02-21 20:11:50,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:11:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1993 transitions. [2021-02-21 20:11:50,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-21 20:11:50,472 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:11:50,472 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] [2021-02-21 20:11:50,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-21 20:11:50,473 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:11:50,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:11:50,473 INFO L82 PathProgramCache]: Analyzing trace with hash -624333055, now seen corresponding path program 1 times [2021-02-21 20:11:50,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:11:50,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198129829] [2021-02-21 20:11:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:11:52,647 WARN L202 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2021-02-21 20:11:54,598 WARN L202 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 112 DAG size of output: 106 [2021-02-21 20:11:57,093 WARN L202 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2021-02-21 20:11:57,096 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:11:57,098 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:11:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:57,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:57,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:57,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:57,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:11:57,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:57,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:57,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:11:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:11:57,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:11:57,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:11:57,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:11:57,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198129829] [2021-02-21 20:11:57,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:11:57,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:11:57,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601009712] [2021-02-21 20:11:57,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:11:57,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:11:57,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:11:57,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:11:57,225 INFO L87 Difference]: Start difference. First operand 1651 states and 1993 transitions. Second operand 4 states. [2021-02-21 20:11:58,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:11:58,149 INFO L93 Difference]: Finished difference Result 2627 states and 3186 transitions. [2021-02-21 20:11:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:11:58,149 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2021-02-21 20:11:58,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:11:58,158 INFO L225 Difference]: With dead ends: 2627 [2021-02-21 20:11:58,158 INFO L226 Difference]: Without dead ends: 1667 [2021-02-21 20:11:58,161 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 [2021-02-21 20:11:58,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-02-21 20:11:58,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1665. [2021-02-21 20:11:58,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1665 states. [2021-02-21 20:11:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2003 transitions. [2021-02-21 20:11:58,401 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2003 transitions. Word has length 199 [2021-02-21 20:11:58,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:11:58,402 INFO L480 AbstractCegarLoop]: Abstraction has 1665 states and 2003 transitions. [2021-02-21 20:11:58,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:11:58,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2003 transitions. [2021-02-21 20:11:58,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-21 20:11:58,405 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:11:58,405 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] [2021-02-21 20:11:58,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-21 20:11:58,405 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:11:58,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:11:58,406 INFO L82 PathProgramCache]: Analyzing trace with hash 393787019, now seen corresponding path program 1 times [2021-02-21 20:11:58,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:11:58,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952391387] [2021-02-21 20:11:58,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:12:00,762 WARN L202 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-02-21 20:12:03,188 WARN L202 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 131 DAG size of output: 111 [2021-02-21 20:12:03,190 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:12:03,191 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:12:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:12:03,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:03,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:12:03,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:03,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:12:03,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:03,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:12:03,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:03,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:12:03,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:03,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:12:03,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:12:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:12:03,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:03,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:12:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:12:03,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952391387] [2021-02-21 20:12:03,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:12:03,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 20:12:03,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952439124] [2021-02-21 20:12:03,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 20:12:03,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:12:03,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 20:12:03,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 20:12:03,305 INFO L87 Difference]: Start difference. First operand 1665 states and 2003 transitions. Second operand 5 states. [2021-02-21 20:12:05,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:12:05,140 INFO L93 Difference]: Finished difference Result 3399 states and 4119 transitions. [2021-02-21 20:12:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 20:12:05,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2021-02-21 20:12:05,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:12:05,155 INFO L225 Difference]: With dead ends: 3399 [2021-02-21 20:12:05,156 INFO L226 Difference]: Without dead ends: 2887 [2021-02-21 20:12:05,158 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 [2021-02-21 20:12:05,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2021-02-21 20:12:05,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1679. [2021-02-21 20:12:05,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1679 states. [2021-02-21 20:12:05,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2022 transitions. [2021-02-21 20:12:05,419 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2022 transitions. Word has length 200 [2021-02-21 20:12:05,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:12:05,419 INFO L480 AbstractCegarLoop]: Abstraction has 1679 states and 2022 transitions. [2021-02-21 20:12:05,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 20:12:05,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2022 transitions. [2021-02-21 20:12:05,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-02-21 20:12:05,423 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:12:05,423 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] [2021-02-21 20:12:05,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-21 20:12:05,424 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:12:05,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:12:05,424 INFO L82 PathProgramCache]: Analyzing trace with hash -981879466, now seen corresponding path program 1 times [2021-02-21 20:12:05,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:12:05,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037765424] [2021-02-21 20:12:05,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:12:07,222 WARN L202 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2021-02-21 20:12:07,228 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-02-21 20:12:07,332 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-02-21 20:12:09,258 WARN L202 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 110 DAG size of output: 101 [2021-02-21 20:12:11,146 WARN L202 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2021-02-21 20:12:11,148 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 20:12:11,150 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:12:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 20:12:11,182 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 20:12:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 20:12:11,210 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 20:12:11,309 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 20:12:11,309 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 20:12:11,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-21 20:12:11,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 08:12:11 BoogieIcfgContainer [2021-02-21 20:12:11,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 20:12:11,339 INFO L168 Benchmark]: Toolchain (without parser) took 64707.89 ms. Allocated memory was 155.2 MB in the beginning and 570.4 MB in the end (delta: 415.2 MB). Free memory was 112.8 MB in the beginning and 314.8 MB in the end (delta: -202.0 MB). Peak memory consumption was 214.6 MB. Max. memory is 8.0 GB. [2021-02-21 20:12:11,340 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 155.2 MB. Free memory was 129.5 MB in the beginning and 129.4 MB in the end (delta: 108.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 20:12:11,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.84 ms. Allocated memory is still 155.2 MB. Free memory was 138.2 MB in the beginning and 123.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-21 20:12:11,341 INFO L168 Benchmark]: Boogie Preprocessor took 107.72 ms. Allocated memory is still 155.2 MB. Free memory was 123.8 MB in the beginning and 136.3 MB in the end (delta: -12.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 20:12:11,341 INFO L168 Benchmark]: RCFGBuilder took 1489.06 ms. Allocated memory was 155.2 MB in the beginning and 187.7 MB in the end (delta: 32.5 MB). Free memory was 136.3 MB in the beginning and 154.9 MB in the end (delta: -18.6 MB). Peak memory consumption was 52.2 MB. Max. memory is 8.0 GB. [2021-02-21 20:12:11,342 INFO L168 Benchmark]: TraceAbstraction took 62559.10 ms. Allocated memory was 187.7 MB in the beginning and 570.4 MB in the end (delta: 382.7 MB). Free memory was 154.3 MB in the beginning and 314.8 MB in the end (delta: -160.5 MB). Peak memory consumption was 222.2 MB. Max. memory is 8.0 GB. [2021-02-21 20:12:11,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 155.2 MB. Free memory was 129.5 MB in the beginning and 129.4 MB in the end (delta: 108.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 505.84 ms. Allocated memory is still 155.2 MB. Free memory was 138.2 MB in the beginning and 123.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 107.72 ms. Allocated memory is still 155.2 MB. Free memory was 123.8 MB in the beginning and 136.3 MB in the end (delta: -12.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1489.06 ms. Allocated memory was 155.2 MB in the beginning and 187.7 MB in the end (delta: 32.5 MB). Free memory was 136.3 MB in the beginning and 154.9 MB in the end (delta: -18.6 MB). Peak memory consumption was 52.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 62559.10 ms. Allocated memory was 187.7 MB in the beginning and 570.4 MB in the end (delta: 382.7 MB). Free memory was 154.3 MB in the beginning and 314.8 MB in the end (delta: -160.5 MB). Peak memory consumption was 222.2 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: 62.4s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 10.2s, 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...