/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 SingleStatement --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:27:58,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:27:58,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:27:58,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:27:58,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:27:58,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:27:58,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:27:58,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:27:58,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:27:58,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:27:58,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:27:58,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:27:58,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:27:58,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:27:58,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:27:58,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:27:58,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:27:58,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:27:58,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:27:58,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:27:58,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:27:58,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:27:58,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:27:58,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:27:58,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:27:58,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:27:58,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:27:58,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:27:58,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:27:58,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:27:58,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:27:58,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:27:58,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:27:58,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:27:58,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:27:58,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:27:58,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:27:58,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:27:58,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:27:58,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:27:58,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:27:58,699 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 [2020-09-24 20:27:58,739 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:27:58,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:27:58,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:27:58,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:27:58,741 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:27:58,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:27:58,742 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:27:58,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:27:58,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:27:58,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:27:58,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:27:58,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:27:58,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:27:58,743 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:27:58,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:27:58,744 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:27:58,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:27:58,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:27:58,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:27:58,745 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:27:58,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:27:58,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:27:58,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:27:58,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:27:58,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:27:58,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:27:58,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:27:58,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:27:58,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:27:58,747 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 -> SingleStatement 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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=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=BIGGEST;log-additional-information=true; [2020-09-24 20:27:59,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:27:59,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:27:59,245 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:27:59,246 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:27:59,247 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:27:59,248 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-24 20:27:59,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/133a66313/50ce6ca523eb4480b29cfe6c5e472e76/FLAG49dbb85f9 [2020-09-24 20:27:59,978 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:27:59,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-24 20:28:00,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/133a66313/50ce6ca523eb4480b29cfe6c5e472e76/FLAG49dbb85f9 [2020-09-24 20:28:00,279 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/133a66313/50ce6ca523eb4480b29cfe6c5e472e76 [2020-09-24 20:28:00,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:28:00,302 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:28:00,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:28:00,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:28:00,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:28:00,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:28:00" (1/1) ... [2020-09-24 20:28:00,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78523b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00, skipping insertion in model container [2020-09-24 20:28:00,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:28:00" (1/1) ... [2020-09-24 20:28:00,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:28:00,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:28:00,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:28:00,680 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:28:00,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:28:00,873 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:28:00,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00 WrapperNode [2020-09-24 20:28:00,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:28:00,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:28:00,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:28:00,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:28:00,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00" (1/1) ... [2020-09-24 20:28:00,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00" (1/1) ... [2020-09-24 20:28:00,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00" (1/1) ... [2020-09-24 20:28:00,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00" (1/1) ... [2020-09-24 20:28:00,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00" (1/1) ... [2020-09-24 20:28:00,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00" (1/1) ... [2020-09-24 20:28:00,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00" (1/1) ... [2020-09-24 20:28:00,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:28:00,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:28:00,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:28:00,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:28:00,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00" (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 [2020-09-24 20:28:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:28:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:28:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-24 20:28:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:28:01,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:28:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 20:28:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:28:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 20:28:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-24 20:28:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:28:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:28:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:28:01,337 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 20:28:02,038 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-24 20:28:02,038 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-24 20:28:02,056 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:28:02,056 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 20:28:02,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:28:02 BoogieIcfgContainer [2020-09-24 20:28:02,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:28:02,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:28:02,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:28:02,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:28:02,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:28:00" (1/3) ... [2020-09-24 20:28:02,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ae4e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:28:02, skipping insertion in model container [2020-09-24 20:28:02,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:28:00" (2/3) ... [2020-09-24 20:28:02,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ae4e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:28:02, skipping insertion in model container [2020-09-24 20:28:02,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:28:02" (3/3) ... [2020-09-24 20:28:02,078 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_14.cil.c [2020-09-24 20:28:02,091 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:28:02,104 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:28:02,127 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:28:02,163 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:28:02,164 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:28:02,164 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:28:02,164 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:28:02,164 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:28:02,164 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:28:02,165 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:28:02,165 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:28:02,198 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-24 20:28:02,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 20:28:02,216 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:02,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:02,219 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:02,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:02,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1268045474, now seen corresponding path program 1 times [2020-09-24 20:28:02,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:02,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643028284] [2020-09-24 20:28:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:02,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:02,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:03,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:03,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:03,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:03,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-24 20:28:03,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:28:03,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1456 [2020-09-24 20:28:03,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:28:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 20:28:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-24 20:28:03,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:28:04,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:04,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:04,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:04,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:04,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:04,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:28:04,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:04,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:04,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:04,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:04,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:28:04,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:28:04,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643028284] [2020-09-24 20:28:04,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:04,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:28:04,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784645443] [2020-09-24 20:28:04,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:28:04,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:04,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:28:04,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:28:04,353 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 7 states. [2020-09-24 20:28:04,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:04,840 INFO L93 Difference]: Finished difference Result 798 states and 1053 transitions. [2020-09-24 20:28:04,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:28:04,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-09-24 20:28:04,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:04,865 INFO L225 Difference]: With dead ends: 798 [2020-09-24 20:28:04,865 INFO L226 Difference]: Without dead ends: 460 [2020-09-24 20:28:04,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:28:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-09-24 20:28:04,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 431. [2020-09-24 20:28:04,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-09-24 20:28:04,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 523 transitions. [2020-09-24 20:28:04,974 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 523 transitions. Word has length 158 [2020-09-24 20:28:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:04,979 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 523 transitions. [2020-09-24 20:28:04,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:28:04,979 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 523 transitions. [2020-09-24 20:28:04,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 20:28:04,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:04,989 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:04,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:28:04,989 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:04,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:04,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1852412155, now seen corresponding path program 1 times [2020-09-24 20:28:04,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:04,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344306572] [2020-09-24 20:28:04,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:05,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:05,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:05,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:05,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:05,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:05,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:06,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:06,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-24 20:28:06,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:28:06,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1340 [2020-09-24 20:28:06,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:06,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:28:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-24 20:28:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:28:06,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:28:06,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:06,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:06,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:06,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:06,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:06,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:06,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:06,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:06,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:06,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:06,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:28:06,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344306572] [2020-09-24 20:28:06,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:06,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 20:28:06,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931387720] [2020-09-24 20:28:06,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 20:28:06,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:06,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 20:28:06,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 20:28:06,486 INFO L87 Difference]: Start difference. First operand 431 states and 523 transitions. Second operand 4 states. [2020-09-24 20:28:06,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:06,757 INFO L93 Difference]: Finished difference Result 521 states and 640 transitions. [2020-09-24 20:28:06,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 20:28:06,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 180 [2020-09-24 20:28:06,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:06,762 INFO L225 Difference]: With dead ends: 521 [2020-09-24 20:28:06,762 INFO L226 Difference]: Without dead ends: 519 [2020-09-24 20:28:06,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:28:06,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-09-24 20:28:06,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 451. [2020-09-24 20:28:06,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-09-24 20:28:06,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 549 transitions. [2020-09-24 20:28:06,788 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 549 transitions. Word has length 180 [2020-09-24 20:28:06,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:06,788 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 549 transitions. [2020-09-24 20:28:06,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 20:28:06,789 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 549 transitions. [2020-09-24 20:28:06,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-24 20:28:06,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:06,793 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:06,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:28:06,793 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:06,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:06,794 INFO L82 PathProgramCache]: Analyzing trace with hash 81131368, now seen corresponding path program 1 times [2020-09-24 20:28:06,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:06,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603662253] [2020-09-24 20:28:06,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:06,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:06,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:06,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:07,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:07,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:07,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:07,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:07,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:07,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:09,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:09,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 20:28:09,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 20:28:09,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2687 [2020-09-24 20:28:09,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:09,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:28:09,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-24 20:28:09,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:28:09,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:09,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:09,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:09,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:09,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:09,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:09,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:09,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:09,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:09,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:09,574 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:28:09,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603662253] [2020-09-24 20:28:09,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:09,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 20:28:09,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994310512] [2020-09-24 20:28:09,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 20:28:09,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:09,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 20:28:09,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 20:28:09,577 INFO L87 Difference]: Start difference. First operand 451 states and 549 transitions. Second operand 4 states. [2020-09-24 20:28:09,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:09,805 INFO L93 Difference]: Finished difference Result 811 states and 1020 transitions. [2020-09-24 20:28:09,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 20:28:09,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2020-09-24 20:28:09,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:09,809 INFO L225 Difference]: With dead ends: 811 [2020-09-24 20:28:09,809 INFO L226 Difference]: Without dead ends: 503 [2020-09-24 20:28:09,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:28:09,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-24 20:28:09,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 479. [2020-09-24 20:28:09,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-09-24 20:28:09,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 587 transitions. [2020-09-24 20:28:09,830 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 587 transitions. Word has length 186 [2020-09-24 20:28:09,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:09,831 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 587 transitions. [2020-09-24 20:28:09,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 20:28:09,831 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 587 transitions. [2020-09-24 20:28:09,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 20:28:09,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:09,834 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:09,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:28:09,835 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:09,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:09,835 INFO L82 PathProgramCache]: Analyzing trace with hash -2094656038, now seen corresponding path program 1 times [2020-09-24 20:28:09,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:09,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453553581] [2020-09-24 20:28:09,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:09,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:09,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:10,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:10,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:10,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:10,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:10,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:12,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:12,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 20:28:12,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 20:28:12,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2284 [2020-09-24 20:28:12,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:28:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-24 20:28:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 20:28:12,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:28:12,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:12,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:12,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:12,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:12,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:12,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:12,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:28:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:28:12,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453553581] [2020-09-24 20:28:12,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:12,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 20:28:12,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162883487] [2020-09-24 20:28:12,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 20:28:12,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:12,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 20:28:12,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 20:28:12,260 INFO L87 Difference]: Start difference. First operand 479 states and 587 transitions. Second operand 4 states. [2020-09-24 20:28:12,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:12,486 INFO L93 Difference]: Finished difference Result 870 states and 1092 transitions. [2020-09-24 20:28:12,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 20:28:12,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 187 [2020-09-24 20:28:12,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:12,491 INFO L225 Difference]: With dead ends: 870 [2020-09-24 20:28:12,491 INFO L226 Difference]: Without dead ends: 529 [2020-09-24 20:28:12,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:28:12,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2020-09-24 20:28:12,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 512. [2020-09-24 20:28:12,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-09-24 20:28:12,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 628 transitions. [2020-09-24 20:28:12,515 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 628 transitions. Word has length 187 [2020-09-24 20:28:12,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:12,516 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 628 transitions. [2020-09-24 20:28:12,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 20:28:12,516 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 628 transitions. [2020-09-24 20:28:12,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 20:28:12,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:12,519 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:12,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:28:12,520 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:12,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:12,520 INFO L82 PathProgramCache]: Analyzing trace with hash 380328757, now seen corresponding path program 1 times [2020-09-24 20:28:12,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:12,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812283316] [2020-09-24 20:28:12,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:12,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:12,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:12,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:12,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:12,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:13,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:13,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:14,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:14,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 20:28:14,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 20:28:14,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2199 [2020-09-24 20:28:14,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:14,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:28:14,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-24 20:28:14,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 20:28:14,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:28:14,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:14,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:14,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:14,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:14,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:14,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:28:14,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:14,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:14,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:14,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:14,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:28:14,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812283316] [2020-09-24 20:28:14,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:14,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 20:28:14,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928336464] [2020-09-24 20:28:14,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 20:28:14,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:14,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 20:28:14,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 20:28:14,836 INFO L87 Difference]: Start difference. First operand 512 states and 628 transitions. Second operand 4 states. [2020-09-24 20:28:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:15,071 INFO L93 Difference]: Finished difference Result 561 states and 686 transitions. [2020-09-24 20:28:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 20:28:15,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 189 [2020-09-24 20:28:15,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:15,077 INFO L225 Difference]: With dead ends: 561 [2020-09-24 20:28:15,078 INFO L226 Difference]: Without dead ends: 559 [2020-09-24 20:28:15,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:28:15,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-09-24 20:28:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 486. [2020-09-24 20:28:15,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2020-09-24 20:28:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 594 transitions. [2020-09-24 20:28:15,104 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 594 transitions. Word has length 189 [2020-09-24 20:28:15,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:15,105 INFO L479 AbstractCegarLoop]: Abstraction has 486 states and 594 transitions. [2020-09-24 20:28:15,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 20:28:15,105 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 594 transitions. [2020-09-24 20:28:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 20:28:15,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:15,111 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:15,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:28:15,111 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:15,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:15,112 INFO L82 PathProgramCache]: Analyzing trace with hash 173047705, now seen corresponding path program 1 times [2020-09-24 20:28:15,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:15,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226905643] [2020-09-24 20:28:15,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:15,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:15,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:15,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:15,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:15,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:15,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:15,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:15,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:16,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:18,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:18,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 20:28:18,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 20:28:18,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2850 [2020-09-24 20:28:18,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:18,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:28:18,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-24 20:28:18,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 20:28:18,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:18,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:18,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:18,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:18,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:18,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:18,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:28:18,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:28:18,155 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:28:18,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226905643] [2020-09-24 20:28:18,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:18,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 20:28:18,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506129168] [2020-09-24 20:28:18,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 20:28:18,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:18,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 20:28:18,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 20:28:18,159 INFO L87 Difference]: Start difference. First operand 486 states and 594 transitions. Second operand 4 states. [2020-09-24 20:28:18,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:18,418 INFO L93 Difference]: Finished difference Result 545 states and 670 transitions. [2020-09-24 20:28:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 20:28:18,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 190 [2020-09-24 20:28:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:18,422 INFO L225 Difference]: With dead ends: 545 [2020-09-24 20:28:18,422 INFO L226 Difference]: Without dead ends: 543 [2020-09-24 20:28:18,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:28:18,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-09-24 20:28:18,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 496. [2020-09-24 20:28:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-09-24 20:28:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 606 transitions. [2020-09-24 20:28:18,439 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 606 transitions. Word has length 190 [2020-09-24 20:28:18,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:18,440 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 606 transitions. [2020-09-24 20:28:18,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 20:28:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 606 transitions. [2020-09-24 20:28:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 20:28:18,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:18,443 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:18,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 20:28:18,444 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:18,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1061579176, now seen corresponding path program 1 times [2020-09-24 20:28:18,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:18,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110955848] [2020-09-24 20:28:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:18,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:18,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:18,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:18,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:19,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:19,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 20:28:19,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:28:19,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 651 [2020-09-24 20:28:19,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:28:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-09-24 20:28:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 20:28:19,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:19,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:19,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:19,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:19,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:19,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:19,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:19,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:19,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:28:19,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110955848] [2020-09-24 20:28:19,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:19,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 20:28:19,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515516083] [2020-09-24 20:28:19,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 20:28:19,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:19,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 20:28:19,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:19,201 INFO L87 Difference]: Start difference. First operand 496 states and 606 transitions. Second operand 3 states. [2020-09-24 20:28:19,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:19,229 INFO L93 Difference]: Finished difference Result 849 states and 1065 transitions. [2020-09-24 20:28:19,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 20:28:19,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-09-24 20:28:19,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:19,233 INFO L225 Difference]: With dead ends: 849 [2020-09-24 20:28:19,233 INFO L226 Difference]: Without dead ends: 496 [2020-09-24 20:28:19,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:19,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-09-24 20:28:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2020-09-24 20:28:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-09-24 20:28:19,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 601 transitions. [2020-09-24 20:28:19,254 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 601 transitions. Word has length 191 [2020-09-24 20:28:19,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:19,255 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 601 transitions. [2020-09-24 20:28:19,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 20:28:19,255 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 601 transitions. [2020-09-24 20:28:19,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 20:28:19,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:19,258 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:19,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 20:28:19,259 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:19,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:19,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1385398107, now seen corresponding path program 1 times [2020-09-24 20:28:19,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:19,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114428668] [2020-09-24 20:28:19,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:19,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:19,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:19,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:19,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:19,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 20:28:19,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:28:19,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-09-24 20:28:19,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:19,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:28:19,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-24 20:28:19,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 20:28:19,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:28:19,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:19,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:19,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:19,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:19,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:19,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:19,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:19,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:19,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:28:19,881 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:28:19,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114428668] [2020-09-24 20:28:19,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:19,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 20:28:19,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128969936] [2020-09-24 20:28:19,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 20:28:19,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:19,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 20:28:19,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:19,884 INFO L87 Difference]: Start difference. First operand 496 states and 601 transitions. Second operand 3 states. [2020-09-24 20:28:19,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:19,921 INFO L93 Difference]: Finished difference Result 856 states and 1063 transitions. [2020-09-24 20:28:19,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 20:28:19,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-09-24 20:28:19,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:19,924 INFO L225 Difference]: With dead ends: 856 [2020-09-24 20:28:19,924 INFO L226 Difference]: Without dead ends: 503 [2020-09-24 20:28:19,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:19,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-24 20:28:19,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 502. [2020-09-24 20:28:19,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-24 20:28:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 603 transitions. [2020-09-24 20:28:19,942 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 603 transitions. Word has length 192 [2020-09-24 20:28:19,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:19,943 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 603 transitions. [2020-09-24 20:28:19,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 20:28:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 603 transitions. [2020-09-24 20:28:19,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 20:28:19,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:19,946 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:19,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 20:28:19,946 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:19,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:19,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1477146175, now seen corresponding path program 1 times [2020-09-24 20:28:19,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:19,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166333907] [2020-09-24 20:28:19,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:20,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:20,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:20,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:20,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:20,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:20,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-24 20:28:20,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:28:20,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 772 [2020-09-24 20:28:20,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:20,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:28:20,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-09-24 20:28:20,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 20:28:20,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:20,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:20,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:20,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:20,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:20,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:20,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:20,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:28:20,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166333907] [2020-09-24 20:28:20,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:20,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 20:28:20,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539040920] [2020-09-24 20:28:20,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 20:28:20,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:20,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 20:28:20,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 20:28:20,844 INFO L87 Difference]: Start difference. First operand 502 states and 603 transitions. Second operand 4 states. [2020-09-24 20:28:20,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:20,934 INFO L93 Difference]: Finished difference Result 1574 states and 1965 transitions. [2020-09-24 20:28:20,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 20:28:20,935 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-09-24 20:28:20,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:20,942 INFO L225 Difference]: With dead ends: 1574 [2020-09-24 20:28:20,942 INFO L226 Difference]: Without dead ends: 1215 [2020-09-24 20:28:20,944 INFO L675 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 [2020-09-24 20:28:20,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2020-09-24 20:28:20,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 854. [2020-09-24 20:28:20,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 854 states. [2020-09-24 20:28:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1045 transitions. [2020-09-24 20:28:20,995 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1045 transitions. Word has length 195 [2020-09-24 20:28:20,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:20,996 INFO L479 AbstractCegarLoop]: Abstraction has 854 states and 1045 transitions. [2020-09-24 20:28:20,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 20:28:20,997 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1045 transitions. [2020-09-24 20:28:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 20:28:21,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:21,001 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:21,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 20:28:21,002 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:21,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:21,024 INFO L82 PathProgramCache]: Analyzing trace with hash 945609894, now seen corresponding path program 1 times [2020-09-24 20:28:21,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:21,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728747244] [2020-09-24 20:28:21,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:21,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:21,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:21,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:21,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-24 20:28:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:28:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-24 20:28:21,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:21,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:28:21,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-24 20:28:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 20:28:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:21,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:21,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:21,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:21,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:21,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:21,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:21,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:21,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:21,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:21,473 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 20:28:21,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728747244] [2020-09-24 20:28:21,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:21,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 20:28:21,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164171921] [2020-09-24 20:28:21,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 20:28:21,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:21,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 20:28:21,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:21,476 INFO L87 Difference]: Start difference. First operand 854 states and 1045 transitions. Second operand 3 states. [2020-09-24 20:28:21,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:21,548 INFO L93 Difference]: Finished difference Result 1591 states and 1969 transitions. [2020-09-24 20:28:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 20:28:21,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-09-24 20:28:21,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:21,553 INFO L225 Difference]: With dead ends: 1591 [2020-09-24 20:28:21,554 INFO L226 Difference]: Without dead ends: 886 [2020-09-24 20:28:21,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:21,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-09-24 20:28:21,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 886. [2020-09-24 20:28:21,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2020-09-24 20:28:21,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1077 transitions. [2020-09-24 20:28:21,597 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1077 transitions. Word has length 195 [2020-09-24 20:28:21,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:21,598 INFO L479 AbstractCegarLoop]: Abstraction has 886 states and 1077 transitions. [2020-09-24 20:28:21,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 20:28:21,598 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1077 transitions. [2020-09-24 20:28:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 20:28:21,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:21,602 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:21,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 20:28:21,602 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:21,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:21,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1567335146, now seen corresponding path program 1 times [2020-09-24 20:28:21,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:21,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174258514] [2020-09-24 20:28:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:21,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:21,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:21,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:21,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:21,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 20:28:21,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:28:21,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-24 20:28:21,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:21,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:28:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-24 20:28:21,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 20:28:21,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:28:21,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:21,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:21,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:21,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:21,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:21,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:21,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:21,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:21,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:21,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:21,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-24 20:28:21,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174258514] [2020-09-24 20:28:22,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:22,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 20:28:22,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709718548] [2020-09-24 20:28:22,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 20:28:22,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:22,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 20:28:22,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:22,002 INFO L87 Difference]: Start difference. First operand 886 states and 1077 transitions. Second operand 3 states. [2020-09-24 20:28:22,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:22,072 INFO L93 Difference]: Finished difference Result 2300 states and 2843 transitions. [2020-09-24 20:28:22,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 20:28:22,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2020-09-24 20:28:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:22,081 INFO L225 Difference]: With dead ends: 2300 [2020-09-24 20:28:22,081 INFO L226 Difference]: Without dead ends: 1595 [2020-09-24 20:28:22,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:22,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2020-09-24 20:28:22,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1567. [2020-09-24 20:28:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1567 states. [2020-09-24 20:28:22,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 1912 transitions. [2020-09-24 20:28:22,226 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 1912 transitions. Word has length 196 [2020-09-24 20:28:22,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:22,227 INFO L479 AbstractCegarLoop]: Abstraction has 1567 states and 1912 transitions. [2020-09-24 20:28:22,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 20:28:22,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 1912 transitions. [2020-09-24 20:28:22,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 20:28:22,236 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:22,236 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:22,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 20:28:22,237 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:22,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:22,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1528506612, now seen corresponding path program 1 times [2020-09-24 20:28:22,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:22,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049877160] [2020-09-24 20:28:22,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:22,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:22,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:22,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:22,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:22,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:23,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:23,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 20:28:23,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:28:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-09-24 20:28:23,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:28:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-24 20:28:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 20:28:23,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:28:23,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:23,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:23,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:23,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:23,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:23,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:23,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:23,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:28:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:28:23,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049877160] [2020-09-24 20:28:23,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:23,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 20:28:23,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156911489] [2020-09-24 20:28:23,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 20:28:23,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:23,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 20:28:23,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 20:28:23,202 INFO L87 Difference]: Start difference. First operand 1567 states and 1912 transitions. Second operand 4 states. [2020-09-24 20:28:23,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:23,637 INFO L93 Difference]: Finished difference Result 3324 states and 4194 transitions. [2020-09-24 20:28:23,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 20:28:23,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2020-09-24 20:28:23,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:23,648 INFO L225 Difference]: With dead ends: 3324 [2020-09-24 20:28:23,648 INFO L226 Difference]: Without dead ends: 1968 [2020-09-24 20:28:23,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:28:23,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2020-09-24 20:28:23,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1855. [2020-09-24 20:28:23,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1855 states. [2020-09-24 20:28:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1855 states to 1855 states and 2237 transitions. [2020-09-24 20:28:23,752 INFO L78 Accepts]: Start accepts. Automaton has 1855 states and 2237 transitions. Word has length 198 [2020-09-24 20:28:23,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:23,753 INFO L479 AbstractCegarLoop]: Abstraction has 1855 states and 2237 transitions. [2020-09-24 20:28:23,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 20:28:23,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1855 states and 2237 transitions. [2020-09-24 20:28:23,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 20:28:23,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:23,759 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:23,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 20:28:23,760 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:23,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:23,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1239838480, now seen corresponding path program 1 times [2020-09-24 20:28:23,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:23,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234065451] [2020-09-24 20:28:23,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:23,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:23,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:23,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:24,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:24,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 20:28:24,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:28:24,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-24 20:28:24,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:28:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 20:28:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 20:28:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:24,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:24,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:24,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:24,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:24,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:24,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:24,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:24,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:24,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:24,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:24,197 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:28:24,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234065451] [2020-09-24 20:28:24,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:24,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 20:28:24,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490251010] [2020-09-24 20:28:24,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 20:28:24,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:24,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 20:28:24,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:24,201 INFO L87 Difference]: Start difference. First operand 1855 states and 2237 transitions. Second operand 3 states. [2020-09-24 20:28:24,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:24,390 INFO L93 Difference]: Finished difference Result 5157 states and 6289 transitions. [2020-09-24 20:28:24,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 20:28:24,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-09-24 20:28:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:24,413 INFO L225 Difference]: With dead ends: 5157 [2020-09-24 20:28:24,413 INFO L226 Difference]: Without dead ends: 3517 [2020-09-24 20:28:24,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:24,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2020-09-24 20:28:24,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 2710. [2020-09-24 20:28:24,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2710 states. [2020-09-24 20:28:24,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 3281 transitions. [2020-09-24 20:28:24,570 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 3281 transitions. Word has length 199 [2020-09-24 20:28:24,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:24,570 INFO L479 AbstractCegarLoop]: Abstraction has 2710 states and 3281 transitions. [2020-09-24 20:28:24,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 20:28:24,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 3281 transitions. [2020-09-24 20:28:24,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 20:28:24,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:24,579 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:24,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 20:28:24,579 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:24,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:24,580 INFO L82 PathProgramCache]: Analyzing trace with hash -912264382, now seen corresponding path program 1 times [2020-09-24 20:28:24,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:24,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942583469] [2020-09-24 20:28:24,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:24,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:24,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:24,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-24 20:28:24,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:24,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 20:28:24,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:24,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:28:24,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-24 20:28:24,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 20:28:24,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:28:24,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:28:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:28:24,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:28:24,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:28:24,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:28:24,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:28:24,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:28:24,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:28:24,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:28:24,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:28:24,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:28:24,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:28:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:28:24,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942583469] [2020-09-24 20:28:24,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:28:24,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 20:28:24,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602400244] [2020-09-24 20:28:24,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 20:28:24,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:28:24,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 20:28:24,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:24,832 INFO L87 Difference]: Start difference. First operand 2710 states and 3281 transitions. Second operand 3 states. [2020-09-24 20:28:25,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:28:25,064 INFO L93 Difference]: Finished difference Result 7494 states and 9180 transitions. [2020-09-24 20:28:25,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 20:28:25,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-09-24 20:28:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:28:25,088 INFO L225 Difference]: With dead ends: 7494 [2020-09-24 20:28:25,088 INFO L226 Difference]: Without dead ends: 5033 [2020-09-24 20:28:25,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 20:28:25,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5033 states. [2020-09-24 20:28:25,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5033 to 5033. [2020-09-24 20:28:25,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5033 states. [2020-09-24 20:28:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5033 states to 5033 states and 6068 transitions. [2020-09-24 20:28:25,280 INFO L78 Accepts]: Start accepts. Automaton has 5033 states and 6068 transitions. Word has length 200 [2020-09-24 20:28:25,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:28:25,280 INFO L479 AbstractCegarLoop]: Abstraction has 5033 states and 6068 transitions. [2020-09-24 20:28:25,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 20:28:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5033 states and 6068 transitions. [2020-09-24 20:28:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 20:28:25,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:28:25,289 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:28:25,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 20:28:25,290 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:28:25,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:28:25,290 INFO L82 PathProgramCache]: Analyzing trace with hash -690870181, now seen corresponding path program 1 times [2020-09-24 20:28:25,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:28:25,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267705055] [2020-09-24 20:28:25,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:28:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:28:25,318 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:28:25,318 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:28:25,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 20:28:25,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:28:25 BoogieIcfgContainer [2020-09-24 20:28:25,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:28:25,376 INFO L168 Benchmark]: Toolchain (without parser) took 25077.60 ms. Allocated memory was 139.5 MB in the beginning and 483.4 MB in the end (delta: 343.9 MB). Free memory was 102.1 MB in the beginning and 170.4 MB in the end (delta: -68.2 MB). Peak memory consumption was 275.7 MB. Max. memory is 7.1 GB. [2020-09-24 20:28:25,377 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 20:28:25,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 571.12 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 177.8 MB in the end (delta: -76.3 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-24 20:28:25,381 INFO L168 Benchmark]: Boogie Preprocessor took 69.08 ms. Allocated memory is still 202.9 MB. Free memory was 177.8 MB in the beginning and 175.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-24 20:28:25,385 INFO L168 Benchmark]: RCFGBuilder took 1122.19 ms. Allocated memory is still 202.9 MB. Free memory was 175.0 MB in the beginning and 103.7 MB in the end (delta: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 7.1 GB. [2020-09-24 20:28:25,388 INFO L168 Benchmark]: TraceAbstraction took 23304.48 ms. Allocated memory was 202.9 MB in the beginning and 483.4 MB in the end (delta: 280.5 MB). Free memory was 103.0 MB in the beginning and 170.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 213.1 MB. Max. memory is 7.1 GB. [2020-09-24 20:28:25,393 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 571.12 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 177.8 MB in the end (delta: -76.3 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.08 ms. Allocated memory is still 202.9 MB. Free memory was 177.8 MB in the beginning and 175.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1122.19 ms. Allocated memory is still 202.9 MB. Free memory was 175.0 MB in the beginning and 103.7 MB in the end (delta: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23304.48 ms. Allocated memory was 202.9 MB in the beginning and 483.4 MB in the end (delta: 280.5 MB). Free memory was 103.0 MB in the beginning and 170.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 213.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 640]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L645] int s ; [L646] int tmp ; [L650] s = 8464 [L651] CALL ssl3_accept(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L72] s__s3__tmp__reuse_message = 0 [L73] s__state = initial_state [L74] blastFlag = 0 [L75] tmp = __VERIFIER_nondet_int() [L76] Time = tmp [L77] cb = 0 [L78] ret = -1 [L79] skip = 0 [L80] got_new_session = 0 [L81] COND FALSE !(s__info_callback != 0) [L84] COND FALSE !(s__ctx__info_callback != 0) [L88] s__in_handshake ++ [L89] COND TRUE tmp___1 + 12288 [L90] COND TRUE tmp___2 + 16384 [L94] COND FALSE !(s__cert == 0) [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND TRUE s__state == 8464 [L271] s__shutdown = 0 [L272] ret = __VERIFIER_nondet_int() [L273] COND TRUE blastFlag == 0 [L274] blastFlag = 1 [L276] COND FALSE !(ret <= 0) [L279] got_new_session = 1 [L280] s__state = 8496 [L281] s__init_num = 0 [L602] COND TRUE ! s__s3__tmp__reuse_message [L603] COND TRUE ! skip [L604] COND TRUE tmp___1 != -12288 [L605] COND TRUE s__state != 8656 [L606] COND TRUE tmp___2 != -16384 [L607] COND FALSE !(state == 8496) [L614] COND FALSE !(\read(s__debug)) [L620] COND FALSE !(cb != 0) [L629] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND TRUE s__state == 8496 [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 1 [L287] blastFlag = 2 [L289] COND FALSE !(ret <= 0) [L292] COND FALSE !(\read(s__hit)) [L295] s__state = 8512 [L297] s__init_num = 0 [L602] COND TRUE ! s__s3__tmp__reuse_message [L603] COND TRUE ! skip [L604] COND TRUE tmp___1 != -12288 [L605] COND TRUE s__state != 8656 [L606] COND TRUE tmp___2 != -16384 [L607] COND TRUE state == 8496 [L640] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 426 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.1s, OverallIterations: 15, TraceHistogramMax: 2, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7070 SDtfs, 5454 SDslu, 8291 SDs, 0 SdLazy, 1325 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5033occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 1568 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 2857 NumberOfCodeBlocks, 2857 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2642 ConstructedInterpolants, 0 QuantifiedInterpolants, 769632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 154/154 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 proved your program to be incorrect! Received shutdown request...