/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/bitvector/s3_srvr_3a_alt.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:01:22,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:01:22,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:01:22,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:01:22,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:01:22,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:01:22,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:01:22,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:01:22,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:01:22,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:01:22,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:01:22,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:01:22,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:01:22,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:01:22,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:01:22,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:01:22,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:01:22,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:01:23,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:01:23,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:01:23,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:01:23,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:01:23,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:01:23,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:01:23,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:01:23,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:01:23,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:01:23,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:01:23,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:01:23,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:01:23,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:01:23,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:01:23,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:01:23,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:01:23,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:01:23,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:01:23,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:01:23,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:01:23,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:01:23,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:01:23,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:01:23,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 15:01:23,120 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:01:23,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:01:23,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:01:23,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:01:23,126 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:01:23,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:01:23,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:01:23,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:01:23,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:01:23,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:01:23,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:01:23,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:01:23,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:01:23,130 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:01:23,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:01:23,130 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:01:23,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:01:23,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:01:23,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:01:23,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:01:23,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:01:23,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:01:23,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:01:23,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:01:23,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:01:23,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:01:23,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:01:23,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:01:23,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:01:23,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:01:23,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:01:23,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:01:23,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:01:23,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:01:23,679 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:01:23,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_3a_alt.BV.c.cil.c [2020-10-27 15:01:23,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94ca55333/bce5166ec262498d9ff8aff04ee40f17/FLAG9543f2a90 [2020-10-27 15:01:24,519 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:01:24,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_srvr_3a_alt.BV.c.cil.c [2020-10-27 15:01:24,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94ca55333/bce5166ec262498d9ff8aff04ee40f17/FLAG9543f2a90 [2020-10-27 15:01:24,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94ca55333/bce5166ec262498d9ff8aff04ee40f17 [2020-10-27 15:01:24,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:01:24,851 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:01:24,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:01:24,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:01:24,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:01:24,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:01:24" (1/1) ... [2020-10-27 15:01:24,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a16208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:24, skipping insertion in model container [2020-10-27 15:01:24,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:01:24" (1/1) ... [2020-10-27 15:01:24,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:01:24,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:01:25,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:01:25,209 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:01:25,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:01:25,296 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:01:25,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:25 WrapperNode [2020-10-27 15:01:25,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:01:25,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:01:25,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:01:25,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:01:25,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:25" (1/1) ... [2020-10-27 15:01:25,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:25" (1/1) ... [2020-10-27 15:01:25,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:25" (1/1) ... [2020-10-27 15:01:25,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:25" (1/1) ... [2020-10-27 15:01:25,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:25" (1/1) ... [2020-10-27 15:01:25,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:25" (1/1) ... [2020-10-27 15:01:25,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:25" (1/1) ... [2020-10-27 15:01:25,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:01:25,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:01:25,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:01:25,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:01:25,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-27 15:01:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:01:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:01:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:01:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-27 15:01:25,480 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:01:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:01:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:01:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:01:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:01:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-27 15:01:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:01:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 15:01:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-27 15:01:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:01:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:01:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:01:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:01:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:01:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:01:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:01:25,691 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 15:01:26,324 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-27 15:01:26,324 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-27 15:01:26,350 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:01:26,351 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:01:26,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:01:26 BoogieIcfgContainer [2020-10-27 15:01:26,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:01:26,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:01:26,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:01:26,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:01:26,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:01:24" (1/3) ... [2020-10-27 15:01:26,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43694161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:01:26, skipping insertion in model container [2020-10-27 15:01:26,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:25" (2/3) ... [2020-10-27 15:01:26,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43694161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:01:26, skipping insertion in model container [2020-10-27 15:01:26,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:01:26" (3/3) ... [2020-10-27 15:01:26,362 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_3a_alt.BV.c.cil.c [2020-10-27 15:01:26,375 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:01:26,381 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:01:26,395 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:01:26,425 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:01:26,425 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:01:26,425 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:01:26,425 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:01:26,425 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:01:26,426 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:01:26,426 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:01:26,426 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:01:26,447 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-10-27 15:01:26,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 15:01:26,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:26,459 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] [2020-10-27 15:01:26,460 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:26,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:26,467 INFO L82 PathProgramCache]: Analyzing trace with hash -30726417, now seen corresponding path program 1 times [2020-10-27 15:01:26,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:26,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259737540] [2020-10-27 15:01:26,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:26,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:26,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:27,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:27,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:27,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-27 15:01:27,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:27,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 926 [2020-10-27 15:01:27,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:27,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 15:01:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 15:01:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:01:27,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:27,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:27,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:27,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:27,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:27,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:01:27,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:27,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:01:27,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259737540] [2020-10-27 15:01:27,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:27,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:27,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096536266] [2020-10-27 15:01:27,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:27,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:27,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:27,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:27,801 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 4 states. [2020-10-27 15:01:28,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:28,457 INFO L93 Difference]: Finished difference Result 411 states and 700 transitions. [2020-10-27 15:01:28,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:28,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-27 15:01:28,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:28,472 INFO L225 Difference]: With dead ends: 411 [2020-10-27 15:01:28,472 INFO L226 Difference]: Without dead ends: 245 [2020-10-27 15:01:28,477 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 [2020-10-27 15:01:28,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-10-27 15:01:28,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2020-10-27 15:01:28,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-27 15:01:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 374 transitions. [2020-10-27 15:01:28,556 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 374 transitions. Word has length 51 [2020-10-27 15:01:28,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:28,557 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 374 transitions. [2020-10-27 15:01:28,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:28,557 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 374 transitions. [2020-10-27 15:01:28,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-27 15:01:28,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:28,562 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] [2020-10-27 15:01:28,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:01:28,562 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:28,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:28,563 INFO L82 PathProgramCache]: Analyzing trace with hash -53570128, now seen corresponding path program 1 times [2020-10-27 15:01:28,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:28,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364322207] [2020-10-27 15:01:28,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:28,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:28,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:28,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:28,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:28,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 15:01:28,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-27 15:01:28,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 15:01:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:01:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:28,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:28,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:28,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:28,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:28,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:28,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:28,930 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:01:28,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364322207] [2020-10-27 15:01:28,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:28,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:28,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244162801] [2020-10-27 15:01:28,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:28,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:28,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:28,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:28,938 INFO L87 Difference]: Start difference. First operand 245 states and 374 transitions. Second operand 4 states. [2020-10-27 15:01:29,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:29,520 INFO L93 Difference]: Finished difference Result 590 states and 929 transitions. [2020-10-27 15:01:29,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:29,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-27 15:01:29,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:29,524 INFO L225 Difference]: With dead ends: 590 [2020-10-27 15:01:29,524 INFO L226 Difference]: Without dead ends: 335 [2020-10-27 15:01:29,527 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 [2020-10-27 15:01:29,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-10-27 15:01:29,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 325. [2020-10-27 15:01:29,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-10-27 15:01:29,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 486 transitions. [2020-10-27 15:01:29,559 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 486 transitions. Word has length 67 [2020-10-27 15:01:29,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:29,560 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 486 transitions. [2020-10-27 15:01:29,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:29,560 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 486 transitions. [2020-10-27 15:01:29,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 15:01:29,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:29,565 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] [2020-10-27 15:01:29,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:01:29,566 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:29,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:29,566 INFO L82 PathProgramCache]: Analyzing trace with hash -261072200, now seen corresponding path program 1 times [2020-10-27 15:01:29,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:29,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21287224] [2020-10-27 15:01:29,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:29,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:29,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 15:01:29,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:29,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-27 15:01:29,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:29,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:29,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:01:29,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 15:01:29,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:29,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:29,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:29,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:29,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:29,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:01:29,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:29,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:29,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:29,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:29,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 15:01:29,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21287224] [2020-10-27 15:01:29,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:29,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:29,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665601339] [2020-10-27 15:01:29,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:29,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:29,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:29,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:29,951 INFO L87 Difference]: Start difference. First operand 325 states and 486 transitions. Second operand 4 states. [2020-10-27 15:01:30,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:30,533 INFO L93 Difference]: Finished difference Result 726 states and 1117 transitions. [2020-10-27 15:01:30,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:30,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-27 15:01:30,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:30,537 INFO L225 Difference]: With dead ends: 726 [2020-10-27 15:01:30,537 INFO L226 Difference]: Without dead ends: 415 [2020-10-27 15:01:30,539 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 [2020-10-27 15:01:30,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-27 15:01:30,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 407. [2020-10-27 15:01:30,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-10-27 15:01:30,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 578 transitions. [2020-10-27 15:01:30,565 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 578 transitions. Word has length 88 [2020-10-27 15:01:30,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:30,566 INFO L481 AbstractCegarLoop]: Abstraction has 407 states and 578 transitions. [2020-10-27 15:01:30,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:30,566 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 578 transitions. [2020-10-27 15:01:30,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 15:01:30,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:30,571 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] [2020-10-27 15:01:30,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:01:30,571 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:30,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:30,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1158465478, now seen corresponding path program 1 times [2020-10-27 15:01:30,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:30,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588686759] [2020-10-27 15:01:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:30,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:30,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:30,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:30,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:30,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 15:01:30,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:30,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-27 15:01:30,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:30,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:30,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:01:30,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 15:01:30,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:31,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:31,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:31,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:31,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:31,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:31,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:31,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:31,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:31,019 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 15:01:31,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588686759] [2020-10-27 15:01:31,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:31,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:31,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189826035] [2020-10-27 15:01:31,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:31,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:31,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:31,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:31,022 INFO L87 Difference]: Start difference. First operand 407 states and 578 transitions. Second operand 4 states. [2020-10-27 15:01:31,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:31,608 INFO L93 Difference]: Finished difference Result 852 states and 1230 transitions. [2020-10-27 15:01:31,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:31,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-27 15:01:31,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:31,612 INFO L225 Difference]: With dead ends: 852 [2020-10-27 15:01:31,612 INFO L226 Difference]: Without dead ends: 459 [2020-10-27 15:01:31,614 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 [2020-10-27 15:01:31,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-10-27 15:01:31,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 453. [2020-10-27 15:01:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-10-27 15:01:31,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 634 transitions. [2020-10-27 15:01:31,636 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 634 transitions. Word has length 88 [2020-10-27 15:01:31,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:31,637 INFO L481 AbstractCegarLoop]: Abstraction has 453 states and 634 transitions. [2020-10-27 15:01:31,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:31,637 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 634 transitions. [2020-10-27 15:01:31,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-27 15:01:31,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:31,639 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:31,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:01:31,640 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:31,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:31,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1190309259, now seen corresponding path program 1 times [2020-10-27 15:01:31,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:31,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48557821] [2020-10-27 15:01:31,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:31,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:31,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:31,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:31,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:31,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 15:01:31,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:31,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-27 15:01:31,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 15:01:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 15:01:31,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:31,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:31,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:31,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:31,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:31,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:31,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:31,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:31,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:31,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:31,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:01:31,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48557821] [2020-10-27 15:01:31,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:31,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:31,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852448004] [2020-10-27 15:01:31,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:31,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:31,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:31,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:31,924 INFO L87 Difference]: Start difference. First operand 453 states and 634 transitions. Second operand 4 states. [2020-10-27 15:01:32,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:32,550 INFO L93 Difference]: Finished difference Result 1042 states and 1504 transitions. [2020-10-27 15:01:32,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:32,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2020-10-27 15:01:32,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:32,555 INFO L225 Difference]: With dead ends: 1042 [2020-10-27 15:01:32,555 INFO L226 Difference]: Without dead ends: 583 [2020-10-27 15:01:32,557 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 [2020-10-27 15:01:32,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2020-10-27 15:01:32,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 557. [2020-10-27 15:01:32,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-10-27 15:01:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 784 transitions. [2020-10-27 15:01:32,589 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 784 transitions. Word has length 95 [2020-10-27 15:01:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:32,590 INFO L481 AbstractCegarLoop]: Abstraction has 557 states and 784 transitions. [2020-10-27 15:01:32,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 784 transitions. [2020-10-27 15:01:32,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-27 15:01:32,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:32,599 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-27 15:01:32,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:01:32,599 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:32,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:32,600 INFO L82 PathProgramCache]: Analyzing trace with hash -689399732, now seen corresponding path program 1 times [2020-10-27 15:01:32,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:32,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162305815] [2020-10-27 15:01:32,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:32,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:32,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 15:01:32,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:32,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-27 15:01:32,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:32,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:32,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 15:01:32,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:01:32,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:32,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:32,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:32,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:32,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:32,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:32,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:32,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 15:01:32,924 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-27 15:01:32,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162305815] [2020-10-27 15:01:32,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:32,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:32,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566545955] [2020-10-27 15:01:32,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:32,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:32,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:32,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:32,932 INFO L87 Difference]: Start difference. First operand 557 states and 784 transitions. Second operand 4 states. [2020-10-27 15:01:33,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:33,643 INFO L93 Difference]: Finished difference Result 1212 states and 1736 transitions. [2020-10-27 15:01:33,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:33,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2020-10-27 15:01:33,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:33,649 INFO L225 Difference]: With dead ends: 1212 [2020-10-27 15:01:33,649 INFO L226 Difference]: Without dead ends: 633 [2020-10-27 15:01:33,651 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 [2020-10-27 15:01:33,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-10-27 15:01:33,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 607. [2020-10-27 15:01:33,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-10-27 15:01:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 852 transitions. [2020-10-27 15:01:33,680 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 852 transitions. Word has length 108 [2020-10-27 15:01:33,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:33,680 INFO L481 AbstractCegarLoop]: Abstraction has 607 states and 852 transitions. [2020-10-27 15:01:33,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:33,680 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 852 transitions. [2020-10-27 15:01:33,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 15:01:33,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:33,683 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] [2020-10-27 15:01:33,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:01:33,684 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:33,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:33,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1493392930, now seen corresponding path program 1 times [2020-10-27 15:01:33,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:33,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668004936] [2020-10-27 15:01:33,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:33,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:33,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:33,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-27 15:01:33,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:33,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 15:01:33,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:33,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:33,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-27 15:01:33,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 15:01:33,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:33,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:33,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:33,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:33,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:33,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-27 15:01:33,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668004936] [2020-10-27 15:01:33,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:33,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:33,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287291484] [2020-10-27 15:01:33,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:33,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:33,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:33,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:33,910 INFO L87 Difference]: Start difference. First operand 607 states and 852 transitions. Second operand 4 states. [2020-10-27 15:01:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:34,471 INFO L93 Difference]: Finished difference Result 905 states and 1272 transitions. [2020-10-27 15:01:34,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:34,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-10-27 15:01:34,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:34,479 INFO L225 Difference]: With dead ends: 905 [2020-10-27 15:01:34,479 INFO L226 Difference]: Without dead ends: 902 [2020-10-27 15:01:34,480 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 [2020-10-27 15:01:34,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-27 15:01:34,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2020-10-27 15:01:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2020-10-27 15:01:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1269 transitions. [2020-10-27 15:01:34,533 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1269 transitions. Word has length 128 [2020-10-27 15:01:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:34,534 INFO L481 AbstractCegarLoop]: Abstraction has 902 states and 1269 transitions. [2020-10-27 15:01:34,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:34,534 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1269 transitions. [2020-10-27 15:01:34,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-27 15:01:34,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:34,539 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-27 15:01:34,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:01:34,540 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:34,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:34,540 INFO L82 PathProgramCache]: Analyzing trace with hash -323951628, now seen corresponding path program 1 times [2020-10-27 15:01:34,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:34,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764349343] [2020-10-27 15:01:34,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:34,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:34,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764349343] [2020-10-27 15:01:34,606 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-10-27 15:01:34,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:34,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-27 15:01:34,606 ERROR L205 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-10-27 15:01:34,606 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 15:01:34,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:01:34,648 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-27 15:01:34,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:01:34 BoogieIcfgContainer [2020-10-27 15:01:34,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:01:34,654 INFO L168 Benchmark]: Toolchain (without parser) took 9806.93 ms. Allocated memory was 156.2 MB in the beginning and 225.4 MB in the end (delta: 69.2 MB). Free memory was 131.6 MB in the beginning and 129.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 72.8 MB. Max. memory is 8.0 GB. [2020-10-27 15:01:34,654 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 125.8 MB. Free memory is still 84.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:01:34,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.26 ms. Allocated memory is still 156.2 MB. Free memory was 131.0 MB in the beginning and 116.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 15:01:34,656 INFO L168 Benchmark]: Boogie Preprocessor took 92.86 ms. Allocated memory is still 156.2 MB. Free memory was 116.0 MB in the beginning and 113.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 15:01:34,658 INFO L168 Benchmark]: RCFGBuilder took 960.81 ms. Allocated memory is still 156.2 MB. Free memory was 113.4 MB in the beginning and 113.8 MB in the end (delta: -422.3 kB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:01:34,659 INFO L168 Benchmark]: TraceAbstraction took 8294.68 ms. Allocated memory was 156.2 MB in the beginning and 225.4 MB in the end (delta: 69.2 MB). Free memory was 113.8 MB in the beginning and 129.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 55.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:01:34,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 125.8 MB. Free memory is still 84.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 441.26 ms. Allocated memory is still 156.2 MB. Free memory was 131.0 MB in the beginning and 116.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 92.86 ms. Allocated memory is still 156.2 MB. Free memory was 116.0 MB in the beginning and 113.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 960.81 ms. Allocated memory is still 156.2 MB. Free memory was 113.4 MB in the beginning and 113.8 MB in the end (delta: -422.3 kB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8294.68 ms. Allocated memory was 156.2 MB in the beginning and 225.4 MB in the end (delta: 69.2 MB). Free memory was 113.8 MB in the beginning and 129.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 55.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of bitwiseAnd at line 85. Possible FailurePath: [L679] int s ; [L680] int tmp ; [L684] s = 8464 [L685] CALL ssl3_accept(s) [L12] int s__info_callback = __VERIFIER_nondet_int(); [L13] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int(); [L18] int s__type ; [L19] int s__init_num ; [L20] int s__hit = __VERIFIER_nondet_int(); [L21] int s__rwstate ; [L22] int s__init_buf___0 ; [L23] int s__debug = __VERIFIER_nondet_int(); [L24] int s__shutdown ; [L25] int s__cert = __VERIFIER_nondet_int(); [L26] int s__options = __VERIFIER_nondet_int(); [L27] int s__verify_mode = __VERIFIER_nondet_int(); [L28] int s__session__peer = __VERIFIER_nondet_int(); [L29] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int(); [L30] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L31] int s__ctx__stats__sess_accept_renegotiate ; [L32] int s__ctx__stats__sess_accept ; [L33] unsigned int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_uint(); [L34] int s__s3__tmp__cert_request ; [L35] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__use_rsa_tmp ; [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_cipher__algo_strength = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int buf ; [L43] unsigned long l ; [L44] unsigned long Time ; [L45] unsigned long tmp ; [L46] int cb ; [L47] long num1 ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int got_new_session ; [L53] int tmp___1 = __VERIFIER_nondet_int(); [L54] int tmp___2 = __VERIFIER_nondet_int(); [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 ; [L60] long tmp___8 = __VERIFIER_nondet_long(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int tmp___10 = __VERIFIER_nondet_int(); [L63] int blastFlag ; [L64] int __retres67 ; [L67] s__state = initial_state [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] Time = tmp [L71] cb = 0 [L72] ret = -1 [L73] skip = 0 [L74] got_new_session = 0 [L75] COND TRUE s__info_callback != 0 [L76] cb = s__info_callback [L84] s__in_handshake = s__in_handshake + 1 [L85] COND FALSE !(tmp___1 & 12288) [L94] COND FALSE !(s__cert == 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 == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND TRUE s__state == 8464 [L289] s__shutdown = 0 [L290] ret = __VERIFIER_nondet_int() [L291] COND TRUE blastFlag == 0 [L292] blastFlag = 1 [L296] COND FALSE !(ret <= 0) [L301] got_new_session = 1 [L302] s__state = 8496 [L303] s__init_num = 0 [L628] COND FALSE !(! s__s3__tmp__reuse_message) [L657] 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 == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND FALSE !(s__state == 8464) [L131] COND FALSE !(s__state == 8465) [L134] COND FALSE !(s__state == 8466) [L137] COND TRUE s__state == 8496 [L307] ret = __VERIFIER_nondet_int() [L308] COND TRUE blastFlag == 1 [L309] blastFlag = 2 [L313] COND FALSE !(ret <= 0) [L318] COND TRUE \read(s__hit) [L319] s__state = 8656 [L323] s__init_num = 0 [L628] COND FALSE !(! s__s3__tmp__reuse_message) [L657] 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 == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND FALSE !(s__state == 8464) [L131] COND FALSE !(s__state == 8465) [L134] COND FALSE !(s__state == 8466) [L137] COND FALSE !(s__state == 8496) [L140] COND FALSE !(s__state == 8497) [L143] COND FALSE !(s__state == 8512) [L146] COND FALSE !(s__state == 8513) [L149] COND FALSE !(s__state == 8528) [L152] COND FALSE !(s__state == 8529) [L155] COND FALSE !(s__state == 8544) [L158] COND FALSE !(s__state == 8545) [L161] COND FALSE !(s__state == 8560) [L164] COND FALSE !(s__state == 8561) [L167] COND FALSE !(s__state == 8448) [L170] COND FALSE !(s__state == 8576) [L173] COND FALSE !(s__state == 8577) [L176] COND FALSE !(s__state == 8592) [L179] COND FALSE !(s__state == 8593) [L182] COND FALSE !(s__state == 8608) [L185] COND FALSE !(s__state == 8609) [L188] COND FALSE !(s__state == 8640) [L191] COND FALSE !(s__state == 8641) [L194] COND TRUE s__state == 8656 [L522] s__session__cipher = s__s3__tmp__new_cipher [L523] COND FALSE !(! tmp___9) [L529] ret = __VERIFIER_nondet_int() [L530] COND TRUE blastFlag == 2 [L531] blastFlag = 3 [L535] COND FALSE !(ret <= 0) [L540] s__state = 8672 [L541] s__init_num = 0 [L542] COND FALSE !(! tmp___10) [L628] COND FALSE !(! s__s3__tmp__reuse_message) [L657] 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 == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND FALSE !(s__state == 8464) [L131] COND FALSE !(s__state == 8465) [L134] COND FALSE !(s__state == 8466) [L137] COND FALSE !(s__state == 8496) [L140] COND FALSE !(s__state == 8497) [L143] COND FALSE !(s__state == 8512) [L146] COND FALSE !(s__state == 8513) [L149] COND FALSE !(s__state == 8528) [L152] COND FALSE !(s__state == 8529) [L155] COND FALSE !(s__state == 8544) [L158] COND FALSE !(s__state == 8545) [L161] COND FALSE !(s__state == 8560) [L164] COND FALSE !(s__state == 8561) [L167] COND FALSE !(s__state == 8448) [L170] COND FALSE !(s__state == 8576) [L173] COND FALSE !(s__state == 8577) [L176] COND FALSE !(s__state == 8592) [L179] COND FALSE !(s__state == 8593) [L182] COND FALSE !(s__state == 8608) [L185] COND FALSE !(s__state == 8609) [L188] COND TRUE s__state == 8640 [L502] ret = __VERIFIER_nondet_int() [L503] COND TRUE blastFlag == 3 [L504] blastFlag = blastFlag + s__state / s__s3__tmp__next_state___0 [L508] COND FALSE !(ret <= 0) [L513] COND TRUE \read(s__hit) [L514] s__state = 3 [L518] s__init_num = 0 [L628] COND FALSE !(! s__s3__tmp__reuse_message) [L657] 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 == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND FALSE !(s__state == 8464) [L131] COND FALSE !(s__state == 8465) [L134] COND FALSE !(s__state == 8466) [L137] COND FALSE !(s__state == 8496) [L140] COND FALSE !(s__state == 8497) [L143] COND FALSE !(s__state == 8512) [L146] COND FALSE !(s__state == 8513) [L149] COND FALSE !(s__state == 8528) [L152] COND FALSE !(s__state == 8529) [L155] COND FALSE !(s__state == 8544) [L158] COND FALSE !(s__state == 8545) [L161] COND FALSE !(s__state == 8560) [L164] COND FALSE !(s__state == 8561) [L167] COND TRUE s__state == 8448 [L441] COND FALSE !(num1 > 0L) [L454] s__state = s__s3__tmp__next_state___0 [L628] COND FALSE !(! s__s3__tmp__reuse_message) [L657] 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 == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND FALSE !(s__state == 8464) [L131] COND FALSE !(s__state == 8465) [L134] COND FALSE !(s__state == 8466) [L137] COND FALSE !(s__state == 8496) [L140] COND FALSE !(s__state == 8497) [L143] COND FALSE !(s__state == 8512) [L146] COND FALSE !(s__state == 8513) [L149] COND FALSE !(s__state == 8528) [L152] COND FALSE !(s__state == 8529) [L155] COND FALSE !(s__state == 8544) [L158] COND FALSE !(s__state == 8545) [L161] COND FALSE !(s__state == 8560) [L164] COND FALSE !(s__state == 8561) [L167] COND FALSE !(s__state == 8448) [L170] COND FALSE !(s__state == 8576) [L173] COND FALSE !(s__state == 8577) [L176] COND FALSE !(s__state == 8592) [L179] COND FALSE !(s__state == 8593) [L182] COND FALSE !(s__state == 8608) [L185] COND FALSE !(s__state == 8609) [L188] COND FALSE !(s__state == 8640) [L191] COND FALSE !(s__state == 8641) [L194] COND FALSE !(s__state == 8656) [L197] COND FALSE !(s__state == 8657) [L200] COND TRUE s__state == 8672 [L551] ret = __VERIFIER_nondet_int() [L552] COND TRUE blastFlag == 4 [L670] CALL reach_error() [L3] __assert_fail("0", "s3_srvr_3a_alt.BV.c.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 8.1s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1469 SDtfs, 2374 SDslu, 59 SDs, 0 SdLazy, 1442 SolverSat, 220 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=902occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 76 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 618 ConstructedInterpolants, 0 QuantifiedInterpolants, 118722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 318/318 InterpolantCoveringCapability, 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...