/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:17:45,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:17:45,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:17:45,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:17:45,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:17:45,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:17:45,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:17:45,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:17:45,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:17:45,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:17:45,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:17:45,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:17:45,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:17:45,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:17:45,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:17:45,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:17:45,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:17:45,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:17:45,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:17:45,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:17:45,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:17:45,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:17:45,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:17:45,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:17:45,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:17:45,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:17:45,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:17:45,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:17:45,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:17:45,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:17:45,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:17:45,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:17:45,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:17:45,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:17:45,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:17:45,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:17:45,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:17:45,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:17:45,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:17:45,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:17:45,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:17:45,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:17:45,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:17:45,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:17:45,860 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:17:45,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:17:45,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:17:45,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:17:45,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:17:45,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:17:45,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:17:45,862 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:17:46,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:17:46,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:17:46,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:17:46,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:17:46,218 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:17:46,219 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1.cil-1.c [2020-07-17 13:17:46,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda40093e/99e3ba3a1a49402a8d1b93a9e086aa9d/FLAGd7b26eb34 [2020-07-17 13:17:46,796 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:17:46,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_1.cil-1.c [2020-07-17 13:17:46,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda40093e/99e3ba3a1a49402a8d1b93a9e086aa9d/FLAGd7b26eb34 [2020-07-17 13:17:47,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda40093e/99e3ba3a1a49402a8d1b93a9e086aa9d [2020-07-17 13:17:47,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:17:47,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:17:47,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:17:47,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:17:47,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:17:47,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:17:47" (1/1) ... [2020-07-17 13:17:47,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e615c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47, skipping insertion in model container [2020-07-17 13:17:47,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:17:47" (1/1) ... [2020-07-17 13:17:47,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:17:47,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:17:47,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:17:47,524 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:17:47,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:17:47,823 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:17:47,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47 WrapperNode [2020-07-17 13:17:47,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:17:47,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:17:47,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:17:47,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:17:47,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47" (1/1) ... [2020-07-17 13:17:47,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47" (1/1) ... [2020-07-17 13:17:47,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47" (1/1) ... [2020-07-17 13:17:47,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47" (1/1) ... [2020-07-17 13:17:47,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47" (1/1) ... [2020-07-17 13:17:47,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47" (1/1) ... [2020-07-17 13:17:47,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47" (1/1) ... [2020-07-17 13:17:47,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:17:47,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:17:47,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:17:47,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:17:47,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47" (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 [2020-07-17 13:17:47,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:17:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:17:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-07-17 13:17:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:17:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:17:47,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-17 13:17:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 13:17:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-17 13:17:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-07-17 13:17:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:17:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:17:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:17:48,247 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-17 13:17:48,925 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-07-17 13:17:48,925 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-07-17 13:17:48,943 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:17:48,943 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 13:17:48,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:17:48 BoogieIcfgContainer [2020-07-17 13:17:48,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:17:48,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:17:48,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:17:48,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:17:48,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:17:47" (1/3) ... [2020-07-17 13:17:48,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24da94e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:17:48, skipping insertion in model container [2020-07-17 13:17:48,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:17:47" (2/3) ... [2020-07-17 13:17:48,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24da94e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:17:48, skipping insertion in model container [2020-07-17 13:17:48,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:17:48" (3/3) ... [2020-07-17 13:17:48,962 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-1.c [2020-07-17 13:17:48,974 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:17:48,983 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:17:49,000 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:17:49,026 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:17:49,027 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:17:49,027 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:17:49,027 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:17:49,027 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:17:49,028 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:17:49,028 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:17:49,028 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:17:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states. [2020-07-17 13:17:49,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-17 13:17:49,081 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:49,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:17:49,083 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:49,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:49,090 INFO L82 PathProgramCache]: Analyzing trace with hash 42998903, now seen corresponding path program 1 times [2020-07-17 13:17:49,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:49,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727568108] [2020-07-17 13:17:49,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:49,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:49,734 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:49,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727568108] [2020-07-17 13:17:49,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:49,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 13:17:49,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262170589] [2020-07-17 13:17:49,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 13:17:49,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:49,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 13:17:49,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 13:17:49,764 INFO L87 Difference]: Start difference. First operand 416 states. Second operand 6 states. [2020-07-17 13:17:50,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:50,240 INFO L93 Difference]: Finished difference Result 738 states and 951 transitions. [2020-07-17 13:17:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 13:17:50,242 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2020-07-17 13:17:50,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:50,262 INFO L225 Difference]: With dead ends: 738 [2020-07-17 13:17:50,263 INFO L226 Difference]: Without dead ends: 413 [2020-07-17 13:17:50,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-17 13:17:50,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-07-17 13:17:50,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 402. [2020-07-17 13:17:50,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-07-17 13:17:50,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 476 transitions. [2020-07-17 13:17:50,441 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 476 transitions. Word has length 169 [2020-07-17 13:17:50,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:50,445 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 476 transitions. [2020-07-17 13:17:50,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 13:17:50,446 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 476 transitions. [2020-07-17 13:17:50,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-07-17 13:17:50,459 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:50,460 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-17 13:17:50,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:17:50,461 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:50,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:50,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1881331938, now seen corresponding path program 1 times [2020-07-17 13:17:50,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:50,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198863591] [2020-07-17 13:17:50,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:50,656 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:50,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198863591] [2020-07-17 13:17:50,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:50,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:50,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111545887] [2020-07-17 13:17:50,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:50,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:50,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:50,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:50,662 INFO L87 Difference]: Start difference. First operand 402 states and 476 transitions. Second operand 3 states. [2020-07-17 13:17:50,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:50,742 INFO L93 Difference]: Finished difference Result 689 states and 834 transitions. [2020-07-17 13:17:50,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:50,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-07-17 13:17:50,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:50,747 INFO L225 Difference]: With dead ends: 689 [2020-07-17 13:17:50,748 INFO L226 Difference]: Without dead ends: 418 [2020-07-17 13:17:50,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:50,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-07-17 13:17:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-07-17 13:17:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-07-17 13:17:50,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 492 transitions. [2020-07-17 13:17:50,794 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 492 transitions. Word has length 191 [2020-07-17 13:17:50,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:50,795 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 492 transitions. [2020-07-17 13:17:50,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:50,795 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 492 transitions. [2020-07-17 13:17:50,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-17 13:17:50,798 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:50,799 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-17 13:17:50,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:17:50,799 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:50,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:50,800 INFO L82 PathProgramCache]: Analyzing trace with hash 572919500, now seen corresponding path program 1 times [2020-07-17 13:17:50,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:50,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808682333] [2020-07-17 13:17:50,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:50,914 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:50,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808682333] [2020-07-17 13:17:50,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:50,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:50,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852516648] [2020-07-17 13:17:50,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:50,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:50,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:50,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:50,917 INFO L87 Difference]: Start difference. First operand 418 states and 492 transitions. Second operand 3 states. [2020-07-17 13:17:51,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:51,184 INFO L93 Difference]: Finished difference Result 724 states and 887 transitions. [2020-07-17 13:17:51,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:51,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-07-17 13:17:51,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:51,189 INFO L225 Difference]: With dead ends: 724 [2020-07-17 13:17:51,189 INFO L226 Difference]: Without dead ends: 453 [2020-07-17 13:17:51,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-07-17 13:17:51,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 442. [2020-07-17 13:17:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-07-17 13:17:51,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 521 transitions. [2020-07-17 13:17:51,240 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 521 transitions. Word has length 192 [2020-07-17 13:17:51,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:51,241 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 521 transitions. [2020-07-17 13:17:51,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:51,241 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 521 transitions. [2020-07-17 13:17:51,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-17 13:17:51,247 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:51,247 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2020-07-17 13:17:51,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 13:17:51,248 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:51,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:51,249 INFO L82 PathProgramCache]: Analyzing trace with hash -442840212, now seen corresponding path program 1 times [2020-07-17 13:17:51,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:51,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327146232] [2020-07-17 13:17:51,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:51,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:51,412 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:51,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327146232] [2020-07-17 13:17:51,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:51,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:51,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896836765] [2020-07-17 13:17:51,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:51,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:51,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:51,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:51,416 INFO L87 Difference]: Start difference. First operand 442 states and 521 transitions. Second operand 3 states. [2020-07-17 13:17:51,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:51,569 INFO L93 Difference]: Finished difference Result 1025 states and 1255 transitions. [2020-07-17 13:17:51,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:51,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-07-17 13:17:51,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:51,576 INFO L225 Difference]: With dead ends: 1025 [2020-07-17 13:17:51,577 INFO L226 Difference]: Without dead ends: 730 [2020-07-17 13:17:51,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:51,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2020-07-17 13:17:51,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2020-07-17 13:17:51,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2020-07-17 13:17:51,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 881 transitions. [2020-07-17 13:17:51,663 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 881 transitions. Word has length 199 [2020-07-17 13:17:51,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:51,664 INFO L479 AbstractCegarLoop]: Abstraction has 730 states and 881 transitions. [2020-07-17 13:17:51,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:51,665 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 881 transitions. [2020-07-17 13:17:51,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-17 13:17:51,670 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:51,671 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-17 13:17:51,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 13:17:51,671 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:51,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:51,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1902289806, now seen corresponding path program 1 times [2020-07-17 13:17:51,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:51,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68724811] [2020-07-17 13:17:51,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:51,900 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:51,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68724811] [2020-07-17 13:17:51,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:51,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:51,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715960107] [2020-07-17 13:17:51,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:51,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:51,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:51,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:51,907 INFO L87 Difference]: Start difference. First operand 730 states and 881 transitions. Second operand 3 states. [2020-07-17 13:17:52,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:52,284 INFO L93 Difference]: Finished difference Result 1430 states and 1801 transitions. [2020-07-17 13:17:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:52,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-07-17 13:17:52,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:52,291 INFO L225 Difference]: With dead ends: 1430 [2020-07-17 13:17:52,291 INFO L226 Difference]: Without dead ends: 847 [2020-07-17 13:17:52,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:52,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2020-07-17 13:17:52,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 820. [2020-07-17 13:17:52,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 820 states. [2020-07-17 13:17:52,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 981 transitions. [2020-07-17 13:17:52,374 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 981 transitions. Word has length 217 [2020-07-17 13:17:52,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:52,375 INFO L479 AbstractCegarLoop]: Abstraction has 820 states and 981 transitions. [2020-07-17 13:17:52,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:52,375 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 981 transitions. [2020-07-17 13:17:52,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-07-17 13:17:52,382 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:52,382 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-17 13:17:52,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 13:17:52,382 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:52,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:52,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1839961070, now seen corresponding path program 1 times [2020-07-17 13:17:52,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:52,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750479166] [2020-07-17 13:17:52,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:52,516 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:52,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750479166] [2020-07-17 13:17:52,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:52,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:52,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750106861] [2020-07-17 13:17:52,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:52,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:52,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:52,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:52,520 INFO L87 Difference]: Start difference. First operand 820 states and 981 transitions. Second operand 3 states. [2020-07-17 13:17:52,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:52,850 INFO L93 Difference]: Finished difference Result 1565 states and 1923 transitions. [2020-07-17 13:17:52,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:52,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-07-17 13:17:52,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:52,857 INFO L225 Difference]: With dead ends: 1565 [2020-07-17 13:17:52,857 INFO L226 Difference]: Without dead ends: 892 [2020-07-17 13:17:52,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:52,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2020-07-17 13:17:52,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 872. [2020-07-17 13:17:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 872 states. [2020-07-17 13:17:52,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1043 transitions. [2020-07-17 13:17:52,979 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1043 transitions. Word has length 217 [2020-07-17 13:17:52,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:52,980 INFO L479 AbstractCegarLoop]: Abstraction has 872 states and 1043 transitions. [2020-07-17 13:17:52,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:52,989 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1043 transitions. [2020-07-17 13:17:52,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-07-17 13:17:52,999 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:53,000 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:17:53,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 13:17:53,000 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:53,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:53,001 INFO L82 PathProgramCache]: Analyzing trace with hash 561231978, now seen corresponding path program 1 times [2020-07-17 13:17:53,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:53,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337487037] [2020-07-17 13:17:53,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:53,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:53,159 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:53,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337487037] [2020-07-17 13:17:53,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:53,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:53,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807314989] [2020-07-17 13:17:53,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:53,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:53,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:53,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:53,164 INFO L87 Difference]: Start difference. First operand 872 states and 1043 transitions. Second operand 3 states. [2020-07-17 13:17:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:53,432 INFO L93 Difference]: Finished difference Result 2236 states and 2701 transitions. [2020-07-17 13:17:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:53,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-07-17 13:17:53,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:53,447 INFO L225 Difference]: With dead ends: 2236 [2020-07-17 13:17:53,447 INFO L226 Difference]: Without dead ends: 1511 [2020-07-17 13:17:53,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:53,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2020-07-17 13:17:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1509. [2020-07-17 13:17:53,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1509 states. [2020-07-17 13:17:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1798 transitions. [2020-07-17 13:17:53,664 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1798 transitions. Word has length 224 [2020-07-17 13:17:53,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:53,665 INFO L479 AbstractCegarLoop]: Abstraction has 1509 states and 1798 transitions. [2020-07-17 13:17:53,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1798 transitions. [2020-07-17 13:17:53,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-07-17 13:17:53,677 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:53,677 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:17:53,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 13:17:53,678 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:53,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:53,679 INFO L82 PathProgramCache]: Analyzing trace with hash -902826781, now seen corresponding path program 1 times [2020-07-17 13:17:53,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:53,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202203487] [2020-07-17 13:17:53,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:53,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:53,879 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:53,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202203487] [2020-07-17 13:17:53,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:53,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:53,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994254502] [2020-07-17 13:17:53,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:53,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:53,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:53,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:53,883 INFO L87 Difference]: Start difference. First operand 1509 states and 1798 transitions. Second operand 3 states. [2020-07-17 13:17:54,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:54,225 INFO L93 Difference]: Finished difference Result 2897 states and 3475 transitions. [2020-07-17 13:17:54,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:54,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-07-17 13:17:54,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:54,234 INFO L225 Difference]: With dead ends: 2897 [2020-07-17 13:17:54,234 INFO L226 Difference]: Without dead ends: 1535 [2020-07-17 13:17:54,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2020-07-17 13:17:54,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1521. [2020-07-17 13:17:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1521 states. [2020-07-17 13:17:54,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 1804 transitions. [2020-07-17 13:17:54,396 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 1804 transitions. Word has length 225 [2020-07-17 13:17:54,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:54,396 INFO L479 AbstractCegarLoop]: Abstraction has 1521 states and 1804 transitions. [2020-07-17 13:17:54,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1804 transitions. [2020-07-17 13:17:54,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-17 13:17:54,404 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:54,404 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2020-07-17 13:17:54,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 13:17:54,404 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:54,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:54,405 INFO L82 PathProgramCache]: Analyzing trace with hash -182509933, now seen corresponding path program 1 times [2020-07-17 13:17:54,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:54,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332697156] [2020-07-17 13:17:54,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:54,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:54,494 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:54,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332697156] [2020-07-17 13:17:54,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:54,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:54,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24932580] [2020-07-17 13:17:54,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:54,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:54,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:54,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:54,497 INFO L87 Difference]: Start difference. First operand 1521 states and 1804 transitions. Second operand 3 states. [2020-07-17 13:17:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:54,917 INFO L93 Difference]: Finished difference Result 4275 states and 5108 transitions. [2020-07-17 13:17:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:54,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2020-07-17 13:17:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:54,935 INFO L225 Difference]: With dead ends: 4275 [2020-07-17 13:17:54,935 INFO L226 Difference]: Without dead ends: 2901 [2020-07-17 13:17:54,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:54,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2020-07-17 13:17:55,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 2899. [2020-07-17 13:17:55,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2899 states. [2020-07-17 13:17:55,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 3440 transitions. [2020-07-17 13:17:55,235 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 3440 transitions. Word has length 227 [2020-07-17 13:17:55,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:55,236 INFO L479 AbstractCegarLoop]: Abstraction has 2899 states and 3440 transitions. [2020-07-17 13:17:55,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:55,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 3440 transitions. [2020-07-17 13:17:55,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-07-17 13:17:55,247 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:55,247 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:17:55,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 13:17:55,248 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:55,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:55,248 INFO L82 PathProgramCache]: Analyzing trace with hash -331944198, now seen corresponding path program 1 times [2020-07-17 13:17:55,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:55,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389209400] [2020-07-17 13:17:55,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:55,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:55,390 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:55,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389209400] [2020-07-17 13:17:55,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:55,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 13:17:55,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701582834] [2020-07-17 13:17:55,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 13:17:55,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:55,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 13:17:55,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:55,393 INFO L87 Difference]: Start difference. First operand 2899 states and 3440 transitions. Second operand 3 states. [2020-07-17 13:17:55,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:55,973 INFO L93 Difference]: Finished difference Result 6983 states and 8335 transitions. [2020-07-17 13:17:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 13:17:55,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2020-07-17 13:17:55,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:56,003 INFO L225 Difference]: With dead ends: 6983 [2020-07-17 13:17:56,004 INFO L226 Difference]: Without dead ends: 4253 [2020-07-17 13:17:56,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 13:17:56,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-07-17 13:17:56,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4253. [2020-07-17 13:17:56,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4253 states. [2020-07-17 13:17:56,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 5058 transitions. [2020-07-17 13:17:56,456 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 5058 transitions. Word has length 228 [2020-07-17 13:17:56,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:56,457 INFO L479 AbstractCegarLoop]: Abstraction has 4253 states and 5058 transitions. [2020-07-17 13:17:56,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 13:17:56,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 5058 transitions. [2020-07-17 13:17:56,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-17 13:17:56,473 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:56,473 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:17:56,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 13:17:56,474 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:56,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:56,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1338604276, now seen corresponding path program 1 times [2020-07-17 13:17:56,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:56,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387013249] [2020-07-17 13:17:56,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:17:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:17:56,702 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:56,702 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 13:17:56,702 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 13:17:56,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 13:17:56,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:17:56 BoogieIcfgContainer [2020-07-17 13:17:56,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:17:56,740 INFO L168 Benchmark]: Toolchain (without parser) took 9566.29 ms. Allocated memory was 144.7 MB in the beginning and 429.4 MB in the end (delta: 284.7 MB). Free memory was 102.6 MB in the beginning and 361.7 MB in the end (delta: -259.1 MB). Peak memory consumption was 308.9 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:56,741 INFO L168 Benchmark]: CDTParser took 1.03 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-17 13:17:56,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.97 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 102.1 MB in the beginning and 179.8 MB in the end (delta: -77.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:56,743 INFO L168 Benchmark]: Boogie Preprocessor took 81.43 ms. Allocated memory is still 205.0 MB. Free memory was 179.8 MB in the beginning and 177.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:56,743 INFO L168 Benchmark]: RCFGBuilder took 1045.88 ms. Allocated memory is still 205.0 MB. Free memory was 177.7 MB in the beginning and 108.9 MB in the end (delta: 68.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:56,744 INFO L168 Benchmark]: TraceAbstraction took 7784.31 ms. Allocated memory was 205.0 MB in the beginning and 429.4 MB in the end (delta: 224.4 MB). Free memory was 108.2 MB in the beginning and 361.7 MB in the end (delta: -253.5 MB). Peak memory consumption was 254.2 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:56,748 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 647.97 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 102.1 MB in the beginning and 179.8 MB in the end (delta: -77.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.43 ms. Allocated memory is still 205.0 MB. Free memory was 179.8 MB in the beginning and 177.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1045.88 ms. Allocated memory is still 205.0 MB. Free memory was 177.7 MB in the beginning and 108.9 MB in the end (delta: 68.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7784.31 ms. Allocated memory was 205.0 MB in the beginning and 429.4 MB in the end (delta: 224.4 MB). Free memory was 108.2 MB in the beginning and 361.7 MB in the end (delta: -253.5 MB). Peak memory consumption was 254.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 611]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L616] int s ; [L617] int tmp ; [L621] s = 8464 [L622] CALL ssl3_accept(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L40] int s__session__cipher ; [L41] int buf = __VERIFIER_nondet_int() ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp = __VERIFIER_nondet_long() ; [L45] int cb ; [L46] long num1 ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 ; [L55] int tmp___4 ; [L56] int tmp___5 ; [L57] int tmp___6 ; [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 ; [L61] int tmp___10 ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L73] s__state = initial_state [L74] blastFlag = 0 [L75] Time = tmp [L76] cb = 0 [L77] ret = -1 [L78] skip = 0 [L79] got_new_session = 0 [L80] COND TRUE s__info_callback != 0 [L81] cb = s__info_callback [L87] s__in_handshake ++ [L88] COND FALSE !(tmp___1 + 12288) [L93] COND FALSE !(s__cert == 0) [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND TRUE s__state == 8464 [L268] s__shutdown = 0 [L269] ret = __VERIFIER_nondet_int() [L270] COND TRUE blastFlag == 0 [L271] blastFlag = 1 [L273] COND FALSE !(ret <= 0) [L276] got_new_session = 1 [L277] s__state = 8496 [L278] s__init_num = 0 [L583] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND TRUE s__state == 8496 [L282] ret = __VERIFIER_nondet_int() [L283] COND TRUE blastFlag == 1 [L284] blastFlag = 2 [L286] COND FALSE !(ret <= 0) [L289] COND TRUE \read(s__hit) [L290] s__state = 8656 [L294] s__init_num = 0 [L583] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND FALSE !(s__state == 8512) [L142] COND FALSE !(s__state == 8513) [L145] COND FALSE !(s__state == 8528) [L148] COND FALSE !(s__state == 8529) [L151] COND FALSE !(s__state == 8544) [L154] COND FALSE !(s__state == 8545) [L157] COND FALSE !(s__state == 8560) [L160] COND FALSE !(s__state == 8561) [L163] COND FALSE !(s__state == 8448) [L166] COND FALSE !(s__state == 8576) [L169] COND FALSE !(s__state == 8577) [L172] COND FALSE !(s__state == 8592) [L175] COND FALSE !(s__state == 8593) [L178] COND FALSE !(s__state == 8608) [L181] COND FALSE !(s__state == 8609) [L184] COND FALSE !(s__state == 8640) [L187] COND FALSE !(s__state == 8641) [L190] COND TRUE s__state == 8656 [L488] s__session__cipher = s__s3__tmp__new_cipher [L489] tmp___9 = __VERIFIER_nondet_int() [L490] COND FALSE !(! tmp___9) [L494] ret = __VERIFIER_nondet_int() [L495] COND TRUE blastFlag == 2 [L496] blastFlag = 3 [L498] COND FALSE !(ret <= 0) [L501] s__state = 8672 [L502] s__init_num = 0 [L503] tmp___10 = __VERIFIER_nondet_int() [L504] COND FALSE !(! tmp___10) [L583] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND FALSE !(s__state == 8512) [L142] COND FALSE !(s__state == 8513) [L145] COND FALSE !(s__state == 8528) [L148] COND FALSE !(s__state == 8529) [L151] COND FALSE !(s__state == 8544) [L154] COND FALSE !(s__state == 8545) [L157] COND FALSE !(s__state == 8560) [L160] COND FALSE !(s__state == 8561) [L163] COND FALSE !(s__state == 8448) [L166] COND FALSE !(s__state == 8576) [L169] COND FALSE !(s__state == 8577) [L172] COND FALSE !(s__state == 8592) [L175] COND FALSE !(s__state == 8593) [L178] COND FALSE !(s__state == 8608) [L181] COND FALSE !(s__state == 8609) [L184] COND FALSE !(s__state == 8640) [L187] COND FALSE !(s__state == 8641) [L190] COND FALSE !(s__state == 8656) [L193] COND FALSE !(s__state == 8657) [L196] COND TRUE s__state == 8672 [L511] ret = __VERIFIER_nondet_int() [L512] COND FALSE !(blastFlag == 4) [L515] COND TRUE blastFlag == 3 [L611] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 416 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.6s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5167 SDtfs, 2473 SDslu, 4213 SDs, 0 SdLazy, 584 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 363 GetRequests, 345 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4253occurred 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: 1.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 87 StatesRemovedByMinimization, 7 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 proved your program to be incorrect! Received shutdown request...