/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 --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 -i ../../../trunk/examples/svcomp/ssh/s3_srvr.blast.02.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 10:00:34,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 10:00:34,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 10:00:34,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 10:00:34,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 10:00:34,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 10:00:34,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 10:00:34,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 10:00:34,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 10:00:34,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 10:00:34,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 10:00:34,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 10:00:34,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 10:00:34,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 10:00:34,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 10:00:34,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 10:00:34,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 10:00:34,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 10:00:34,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 10:00:34,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 10:00:34,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 10:00:34,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 10:00:34,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 10:00:34,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 10:00:34,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 10:00:34,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 10:00:34,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 10:00:34,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 10:00:34,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 10:00:34,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 10:00:34,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 10:00:34,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 10:00:34,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 10:00:34,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 10:00:34,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 10:00:34,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 10:00:34,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 10:00:34,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 10:00:34,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 10:00:34,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 10:00:34,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 10:00:34,205 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 [2020-10-14 10:00:34,241 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 10:00:34,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 10:00:34,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 10:00:34,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 10:00:34,243 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 10:00:34,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 10:00:34,244 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 10:00:34,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 10:00:34,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 10:00:34,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 10:00:34,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 10:00:34,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 10:00:34,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 10:00:34,246 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 10:00:34,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 10:00:34,247 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 10:00:34,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 10:00:34,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 10:00:34,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 10:00:34,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 10:00:34,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 10:00:34,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 10:00:34,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 10:00:34,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 10:00:34,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 10:00:34,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 10:00:34,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 10:00:34,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 10:00:34,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 10:00:34,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 10:00:34,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 10:00:34,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 10:00:34,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 10:00:34,585 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 10:00:34,586 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 10:00:34,586 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh/s3_srvr.blast.02.i.cil-1.c [2020-10-14 10:00:34,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/987f9d948/307ca42c234c4a6d9c3fde7e9f8bf54e/FLAG72884a386 [2020-10-14 10:00:35,246 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 10:00:35,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh/s3_srvr.blast.02.i.cil-1.c [2020-10-14 10:00:35,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/987f9d948/307ca42c234c4a6d9c3fde7e9f8bf54e/FLAG72884a386 [2020-10-14 10:00:35,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/987f9d948/307ca42c234c4a6d9c3fde7e9f8bf54e [2020-10-14 10:00:35,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 10:00:35,480 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 10:00:35,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 10:00:35,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 10:00:35,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 10:00:35,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:00:35" (1/1) ... [2020-10-14 10:00:35,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a964ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:35, skipping insertion in model container [2020-10-14 10:00:35,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:00:35" (1/1) ... [2020-10-14 10:00:35,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 10:00:35,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 10:00:36,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 10:00:36,082 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 10:00:36,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 10:00:36,276 INFO L208 MainTranslator]: Completed translation [2020-10-14 10:00:36,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:36 WrapperNode [2020-10-14 10:00:36,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 10:00:36,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 10:00:36,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 10:00:36,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 10:00:36,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:36" (1/1) ... [2020-10-14 10:00:36,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:36" (1/1) ... [2020-10-14 10:00:36,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:36" (1/1) ... [2020-10-14 10:00:36,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:36" (1/1) ... [2020-10-14 10:00:36,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:36" (1/1) ... [2020-10-14 10:00:36,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:36" (1/1) ... [2020-10-14 10:00:36,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:36" (1/1) ... [2020-10-14 10:00:36,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 10:00:36,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 10:00:36,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 10:00:36,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 10:00:36,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:36" (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 [2020-10-14 10:00:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 10:00:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 10:00:36,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2020-10-14 10:00:36,503 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2020-10-14 10:00:36,503 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 10:00:36,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-14 10:00:36,504 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2020-10-14 10:00:36,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 10:00:36,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 10:00:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 10:00:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 10:00:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 10:00:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 10:00:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-14 10:00:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 10:00:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 10:00:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2020-10-14 10:00:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2020-10-14 10:00:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-14 10:00:36,510 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2020-10-14 10:00:36,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 10:00:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 10:00:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 10:00:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 10:00:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 10:00:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 10:00:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 10:00:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 10:00:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 10:00:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 10:00:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 10:00:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 10:00:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 10:00:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 10:00:36,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 10:00:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 10:00:36,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 10:00:37,119 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 10:00:37,683 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-10-14 10:00:37,684 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-10-14 10:00:37,707 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 10:00:37,707 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 10:00:37,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:00:37 BoogieIcfgContainer [2020-10-14 10:00:37,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 10:00:37,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 10:00:37,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 10:00:37,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 10:00:37,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:00:35" (1/3) ... [2020-10-14 10:00:37,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611b7e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:00:37, skipping insertion in model container [2020-10-14 10:00:37,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:36" (2/3) ... [2020-10-14 10:00:37,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611b7e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:00:37, skipping insertion in model container [2020-10-14 10:00:37,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:00:37" (3/3) ... [2020-10-14 10:00:37,719 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.02.i.cil-1.c [2020-10-14 10:00:37,729 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 10:00:37,736 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 10:00:37,747 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 10:00:37,769 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 10:00:37,769 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 10:00:37,770 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 10:00:37,770 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 10:00:37,770 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 10:00:37,770 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 10:00:37,770 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 10:00:37,770 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 10:00:37,790 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-10-14 10:00:37,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 10:00:37,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:37,801 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] [2020-10-14 10:00:37,802 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:37,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:37,807 INFO L82 PathProgramCache]: Analyzing trace with hash 416306971, now seen corresponding path program 1 times [2020-10-14 10:00:37,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:37,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994430541] [2020-10-14 10:00:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:38,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:38,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:38,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:38,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 10:00:38,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:00:38,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-10-14 10:00:38,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:38,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:00:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 10:00:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 10:00:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 10:00:39,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:00:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:39,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:39,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:39,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:00:39,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:00:39,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 10:00:39,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:39,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:39,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:00:39,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:00:39,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:00:39,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:39,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:00:39,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994430541] [2020-10-14 10:00:39,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:00:39,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 10:00:39,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875349846] [2020-10-14 10:00:39,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 10:00:39,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:00:39,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 10:00:39,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:39,182 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 4 states. [2020-10-14 10:00:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:00:39,854 INFO L93 Difference]: Finished difference Result 421 states and 708 transitions. [2020-10-14 10:00:39,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 10:00:39,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-14 10:00:39,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:00:39,881 INFO L225 Difference]: With dead ends: 421 [2020-10-14 10:00:39,882 INFO L226 Difference]: Without dead ends: 256 [2020-10-14 10:00:39,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:39,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-14 10:00:39,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2020-10-14 10:00:39,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-14 10:00:39,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 384 transitions. [2020-10-14 10:00:39,983 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 384 transitions. Word has length 51 [2020-10-14 10:00:39,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:00:39,985 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 384 transitions. [2020-10-14 10:00:39,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 10:00:39,987 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 384 transitions. [2020-10-14 10:00:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 10:00:39,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:39,992 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] [2020-10-14 10:00:39,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 10:00:39,992 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:39,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:39,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1266106814, now seen corresponding path program 1 times [2020-10-14 10:00:39,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:39,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035302401] [2020-10-14 10:00:39,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:40,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:40,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:40,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:40,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:40,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 10:00:40,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:00:40,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 696 [2020-10-14 10:00:40,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:40,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:00:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-14 10:00:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 10:00:40,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:40,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:00:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:40,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:40,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:40,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:00:40,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:00:40,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 10:00:40,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:40,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:40,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:00:40,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:00:40,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:00:40,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 10:00:40,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035302401] [2020-10-14 10:00:40,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:00:40,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 10:00:40,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569905575] [2020-10-14 10:00:40,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 10:00:40,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:00:40,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 10:00:40,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:40,816 INFO L87 Difference]: Start difference. First operand 256 states and 384 transitions. Second operand 4 states. [2020-10-14 10:00:41,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:00:41,281 INFO L93 Difference]: Finished difference Result 498 states and 755 transitions. [2020-10-14 10:00:41,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 10:00:41,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2020-10-14 10:00:41,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:00:41,285 INFO L225 Difference]: With dead ends: 498 [2020-10-14 10:00:41,285 INFO L226 Difference]: Without dead ends: 376 [2020-10-14 10:00:41,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:41,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-10-14 10:00:41,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2020-10-14 10:00:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-14 10:00:41,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 566 transitions. [2020-10-14 10:00:41,308 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 566 transitions. Word has length 68 [2020-10-14 10:00:41,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:00:41,309 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 566 transitions. [2020-10-14 10:00:41,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 10:00:41,309 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 566 transitions. [2020-10-14 10:00:41,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 10:00:41,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:41,314 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 10:00:41,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 10:00:41,314 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:41,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:41,315 INFO L82 PathProgramCache]: Analyzing trace with hash 273546962, now seen corresponding path program 1 times [2020-10-14 10:00:41,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:41,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1172727310] [2020-10-14 10:00:41,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:41,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:41,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:41,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:42,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:42,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 10:00:42,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 10:00:42,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1473 [2020-10-14 10:00:42,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:42,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:42,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 10:00:42,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 10:00:42,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 10:00:42,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:42,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 10:00:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 10:00:42,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 10:00:42,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 10:00:42,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 10:00:42,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 10:00:42,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 10:00:42,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 10:00:42,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 10:00:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 10:00:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 10:00:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 10:00:42,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 10:00:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 10:00:42,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1172727310] [2020-10-14 10:00:42,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 10:00:42,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 10:00:42,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051298584] [2020-10-14 10:00:42,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 10:00:42,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 10:00:42,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 10:00:42,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:42,986 INFO L87 Difference]: Start difference. First operand 376 states and 566 transitions. Second operand 4 states. [2020-10-14 10:00:43,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 10:00:43,481 INFO L93 Difference]: Finished difference Result 738 states and 1119 transitions. [2020-10-14 10:00:43,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 10:00:43,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2020-10-14 10:00:43,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 10:00:43,485 INFO L225 Difference]: With dead ends: 738 [2020-10-14 10:00:43,485 INFO L226 Difference]: Without dead ends: 496 [2020-10-14 10:00:43,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 10:00:43,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-14 10:00:43,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2020-10-14 10:00:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-14 10:00:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 749 transitions. [2020-10-14 10:00:43,504 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 749 transitions. Word has length 90 [2020-10-14 10:00:43,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 10:00:43,505 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 749 transitions. [2020-10-14 10:00:43,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 10:00:43,505 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 749 transitions. [2020-10-14 10:00:43,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 10:00:43,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 10:00:43,509 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-14 10:00:43,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 10:00:43,510 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 10:00:43,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 10:00:43,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1506452713, now seen corresponding path program 1 times [2020-10-14 10:00:43,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 10:00:43,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086457221] [2020-10-14 10:00:43,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 10:00:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 10:00:43,579 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 10:00:43,579 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 10:00:43,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 10:00:43,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 10:00:43 BoogieIcfgContainer [2020-10-14 10:00:43,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 10:00:43,622 INFO L168 Benchmark]: Toolchain (without parser) took 8141.64 ms. Allocated memory was 149.4 MB in the beginning and 312.0 MB in the end (delta: 162.5 MB). Free memory was 101.8 MB in the beginning and 216.6 MB in the end (delta: -114.8 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. [2020-10-14 10:00:43,623 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 149.4 MB. Free memory was 122.7 MB in the beginning and 122.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 10:00:43,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.49 ms. Allocated memory was 149.4 MB in the beginning and 207.1 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 166.6 MB in the end (delta: -65.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2020-10-14 10:00:43,625 INFO L168 Benchmark]: Boogie Preprocessor took 128.61 ms. Allocated memory is still 207.1 MB. Free memory was 166.6 MB in the beginning and 159.1 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. [2020-10-14 10:00:43,626 INFO L168 Benchmark]: RCFGBuilder took 1305.40 ms. Allocated memory was 207.1 MB in the beginning and 233.3 MB in the end (delta: 26.2 MB). Free memory was 159.1 MB in the beginning and 167.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. [2020-10-14 10:00:43,627 INFO L168 Benchmark]: TraceAbstraction took 5906.52 ms. Allocated memory was 233.3 MB in the beginning and 312.0 MB in the end (delta: 78.6 MB). Free memory was 167.0 MB in the beginning and 216.6 MB in the end (delta: -49.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2020-10-14 10:00:43,631 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 149.4 MB. Free memory was 122.7 MB in the beginning and 122.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.49 ms. Allocated memory was 149.4 MB in the beginning and 207.1 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 166.6 MB in the end (delta: -65.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.61 ms. Allocated memory is still 207.1 MB. Free memory was 166.6 MB in the beginning and 159.1 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1305.40 ms. Allocated memory was 207.1 MB in the beginning and 233.3 MB in the end (delta: 26.2 MB). Free memory was 159.1 MB in the beginning and 167.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5906.52 ms. Allocated memory was 233.3 MB in the beginning and 312.0 MB in the end (delta: 78.6 MB). Free memory was 167.0 MB in the beginning and 216.6 MB in the end (delta: -49.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1702]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 1121. Possible FailurePath: [L1042] static int init = 1; [L1043] static SSL_METHOD SSLv3_server_data ; [L1065] SSL *s ; [L1066] int tmp ; [L1070] s = malloc(sizeof(SSL)) [L1071] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1072] s->ctx = malloc(sizeof(SSL_CTX)) [L1073] s->session = malloc(sizeof(SSL_SESSION)) [L1074] s->state = 8464 [L1075] CALL ssl3_accept(s) [L1081] BUF_MEM *buf ; [L1082] unsigned long l ; [L1083] unsigned long Time ; [L1084] unsigned long tmp ; [L1085] void (*cb)() ; [L1086] long num1 ; [L1087] int ret ; [L1088] int new_state ; [L1089] int state ; [L1090] int skip ; [L1091] int got_new_session ; [L1092] int tmp___1 = __VERIFIER_nondet_int() ; [L1093] int tmp___2 = __VERIFIER_nondet_int() ; [L1094] int tmp___3 = __VERIFIER_nondet_int() ; [L1095] int tmp___4 = __VERIFIER_nondet_int() ; [L1096] int tmp___5 = __VERIFIER_nondet_int() ; [L1097] int tmp___6 = __VERIFIER_nondet_int() ; [L1098] int tmp___7 ; [L1099] long tmp___8 = __VERIFIER_nondet_long() ; [L1100] int tmp___9 = __VERIFIER_nondet_int() ; [L1101] int tmp___10 = __VERIFIER_nondet_int() ; [L1102] int blastFlag ; [L1106] blastFlag = 0 [L1107] s->hit=__VERIFIER_nondet_int () [L1108] s->state = 8464 [L1109] tmp = __VERIFIER_nondet_int() [L1110] Time = tmp [L1111] cb = (void (*)())((void *)0) [L1112] ret = -1 [L1113] skip = 0 [L1114] got_new_session = 0 [L1115] EXPR s->info_callback [L1115] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1116] EXPR s->info_callback [L1116] cb = s->info_callback [L1120] EXPR s->in_handshake [L1120] s->in_handshake += 1 [L1121] COND FALSE !(tmp___1 & 12288) [L1130] EXPR s->cert [L1130] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1136] COND TRUE 1 [L1138] EXPR s->state [L1138] state = s->state [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 12292) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 16384) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 8192) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 24576) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 8195) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 8480) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 8481) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 8482) [L1163] EXPR s->state [L1163] COND TRUE s->state == 8464 [L1323] s->shutdown = 0 [L1324] ret = __VERIFIER_nondet_int() [L1325] COND TRUE blastFlag == 0 [L1326] blastFlag = 1 [L1330] COND FALSE !(ret <= 0) [L1335] got_new_session = 1 [L1336] s->state = 8496 [L1337] s->init_num = 0 [L1661] EXPR s->s3 [L1661] EXPR (s->s3)->tmp.reuse_message [L1661] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1690] skip = 0 [L1136] COND TRUE 1 [L1138] EXPR s->state [L1138] state = s->state [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 12292) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 16384) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 8192) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 24576) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 8195) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 8480) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 8481) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 8482) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 8464) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 8465) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 8466) [L1172] EXPR s->state [L1172] COND TRUE s->state == 8496 [L1341] ret = __VERIFIER_nondet_int() [L1342] COND TRUE blastFlag == 1 [L1343] blastFlag = 2 [L1351] COND FALSE !(ret <= 0) [L1356] s->hit [L1356] COND TRUE s->hit [L1357] s->state = 8656 [L1361] s->init_num = 0 [L1661] EXPR s->s3 [L1661] EXPR (s->s3)->tmp.reuse_message [L1661] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1690] skip = 0 [L1136] COND TRUE 1 [L1138] EXPR s->state [L1138] state = s->state [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 12292) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 16384) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 8192) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 24576) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 8195) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 8480) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 8481) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 8482) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 8464) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 8465) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 8466) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 8496) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 8497) [L1178] EXPR s->state [L1178] COND FALSE !(s->state == 8512) [L1181] EXPR s->state [L1181] COND FALSE !(s->state == 8513) [L1184] EXPR s->state [L1184] COND FALSE !(s->state == 8528) [L1187] EXPR s->state [L1187] COND FALSE !(s->state == 8529) [L1190] EXPR s->state [L1190] COND FALSE !(s->state == 8544) [L1193] EXPR s->state [L1193] COND FALSE !(s->state == 8545) [L1196] EXPR s->state [L1196] COND FALSE !(s->state == 8560) [L1199] EXPR s->state [L1199] COND FALSE !(s->state == 8561) [L1202] EXPR s->state [L1202] COND FALSE !(s->state == 8448) [L1205] EXPR s->state [L1205] COND FALSE !(s->state == 8576) [L1208] EXPR s->state [L1208] COND FALSE !(s->state == 8577) [L1211] EXPR s->state [L1211] COND FALSE !(s->state == 8592) [L1214] EXPR s->state [L1214] COND FALSE !(s->state == 8593) [L1217] EXPR s->state [L1217] COND FALSE !(s->state == 8608) [L1220] EXPR s->state [L1220] COND FALSE !(s->state == 8609) [L1223] EXPR s->state [L1223] COND FALSE !(s->state == 8640) [L1226] EXPR s->state [L1226] COND FALSE !(s->state == 8641) [L1229] EXPR s->state [L1229] COND TRUE s->state == 8656 [L1554] EXPR s->session [L1554] EXPR s->s3 [L1554] EXPR (s->s3)->tmp.new_cipher [L1554] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1555] COND FALSE !(! tmp___9) [L1561] ret = __VERIFIER_nondet_int() [L1562] COND TRUE blastFlag == 2 [L1563] blastFlag = 3 [L1567] COND FALSE !(ret <= 0) [L1572] s->state = 8672 [L1573] s->init_num = 0 [L1574] COND FALSE !(! tmp___10) [L1661] EXPR s->s3 [L1661] EXPR (s->s3)->tmp.reuse_message [L1661] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1690] skip = 0 [L1136] COND TRUE 1 [L1138] EXPR s->state [L1138] state = s->state [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 12292) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 16384) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 8192) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 24576) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 8195) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 8480) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 8481) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 8482) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 8464) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 8465) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 8466) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 8496) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 8497) [L1178] EXPR s->state [L1178] COND FALSE !(s->state == 8512) [L1181] EXPR s->state [L1181] COND FALSE !(s->state == 8513) [L1184] EXPR s->state [L1184] COND FALSE !(s->state == 8528) [L1187] EXPR s->state [L1187] COND FALSE !(s->state == 8529) [L1190] EXPR s->state [L1190] COND FALSE !(s->state == 8544) [L1193] EXPR s->state [L1193] COND FALSE !(s->state == 8545) [L1196] EXPR s->state [L1196] COND FALSE !(s->state == 8560) [L1199] EXPR s->state [L1199] COND FALSE !(s->state == 8561) [L1202] EXPR s->state [L1202] COND FALSE !(s->state == 8448) [L1205] EXPR s->state [L1205] COND FALSE !(s->state == 8576) [L1208] EXPR s->state [L1208] COND FALSE !(s->state == 8577) [L1211] EXPR s->state [L1211] COND FALSE !(s->state == 8592) [L1214] EXPR s->state [L1214] COND FALSE !(s->state == 8593) [L1217] EXPR s->state [L1217] COND FALSE !(s->state == 8608) [L1220] EXPR s->state [L1220] COND FALSE !(s->state == 8609) [L1223] EXPR s->state [L1223] COND FALSE !(s->state == 8640) [L1226] EXPR s->state [L1226] COND FALSE !(s->state == 8641) [L1229] EXPR s->state [L1229] COND FALSE !(s->state == 8656) [L1232] EXPR s->state [L1232] COND FALSE !(s->state == 8657) [L1235] EXPR s->state [L1235] COND TRUE s->state == 8672 [L1583] ret = __VERIFIER_nondet_int() [L1584] COND TRUE blastFlag == 3 [L1702] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 180 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.8s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 625 SDtfs, 483 SDslu, 595 SDs, 0 SdLazy, 700 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=496occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 38438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 50/50 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...