/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 04:44:31,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 04:44:31,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 04:44:32,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 04:44:32,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 04:44:32,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 04:44:32,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 04:44:32,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 04:44:32,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 04:44:32,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 04:44:32,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 04:44:32,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 04:44:32,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 04:44:32,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 04:44:32,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 04:44:32,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 04:44:32,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 04:44:32,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 04:44:32,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 04:44:32,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 04:44:32,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 04:44:32,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 04:44:32,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 04:44:32,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 04:44:32,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 04:44:32,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 04:44:32,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 04:44:32,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 04:44:32,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 04:44:32,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 04:44:32,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 04:44:32,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 04:44:32,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 04:44:32,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 04:44:32,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 04:44:32,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 04:44:32,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 04:44:32,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 04:44:32,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 04:44:32,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 04:44:32,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 04:44:32,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 04:44:32,113 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 04:44:32,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 04:44:32,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 04:44:32,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 04:44:32,116 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 04:44:32,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 04:44:32,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 04:44:32,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 04:44:32,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 04:44:32,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 04:44:32,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 04:44:32,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 04:44:32,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 04:44:32,118 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 04:44:32,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 04:44:32,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 04:44:32,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 04:44:32,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 04:44:32,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 04:44:32,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 04:44:32,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 04:44:32,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:44:32,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 04:44:32,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 04:44:32,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 04:44:32,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 04:44:32,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 04:44:32,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 04:44:32,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 04:44:32,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 04:44:32,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 04:44:32,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 04:44:32,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 04:44:32,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 04:44:32,435 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 04:44:32,435 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_12.cil.c [2020-10-15 04:44:32,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a0c41378/6f2e4d813efd41cdaff0d23e60f996bc/FLAG47a6c0139 [2020-10-15 04:44:32,995 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 04:44:32,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_12.cil.c [2020-10-15 04:44:33,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a0c41378/6f2e4d813efd41cdaff0d23e60f996bc/FLAG47a6c0139 [2020-10-15 04:44:33,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a0c41378/6f2e4d813efd41cdaff0d23e60f996bc [2020-10-15 04:44:33,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 04:44:33,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 04:44:33,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 04:44:33,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 04:44:33,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 04:44:33,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:33" (1/1) ... [2020-10-15 04:44:33,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722dc2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33, skipping insertion in model container [2020-10-15 04:44:33,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:33" (1/1) ... [2020-10-15 04:44:33,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 04:44:33,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 04:44:33,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:44:33,687 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 04:44:33,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:44:33,881 INFO L208 MainTranslator]: Completed translation [2020-10-15 04:44:33,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33 WrapperNode [2020-10-15 04:44:33,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 04:44:33,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 04:44:33,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 04:44:33,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 04:44:33,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2020-10-15 04:44:33,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2020-10-15 04:44:33,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2020-10-15 04:44:33,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2020-10-15 04:44:33,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2020-10-15 04:44:33,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2020-10-15 04:44:33,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... [2020-10-15 04:44:33,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 04:44:33,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 04:44:33,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 04:44:33,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 04:44:33,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:44:34,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 04:44:34,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 04:44:34,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-15 04:44:34,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 04:44:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 04:44:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 04:44:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 04:44:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-15 04:44:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 04:44:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-15 04:44:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 04:44:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 04:44:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 04:44:34,190 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 04:44:34,734 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-15 04:44:34,735 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-15 04:44:34,746 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 04:44:34,746 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 04:44:34,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:34 BoogieIcfgContainer [2020-10-15 04:44:34,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 04:44:34,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 04:44:34,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 04:44:34,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 04:44:34,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:44:33" (1/3) ... [2020-10-15 04:44:34,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cbe0357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:44:34, skipping insertion in model container [2020-10-15 04:44:34,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:33" (2/3) ... [2020-10-15 04:44:34,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cbe0357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:44:34, skipping insertion in model container [2020-10-15 04:44:34,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:34" (3/3) ... [2020-10-15 04:44:34,760 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_12.cil.c [2020-10-15 04:44:34,771 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 04:44:34,779 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 04:44:34,793 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 04:44:34,819 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 04:44:34,819 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 04:44:34,819 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 04:44:34,820 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 04:44:34,820 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 04:44:34,820 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 04:44:34,820 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 04:44:34,820 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 04:44:34,843 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2020-10-15 04:44:34,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-15 04:44:34,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:34,854 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] [2020-10-15 04:44:34,855 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:34,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:34,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1312867208, now seen corresponding path program 1 times [2020-10-15 04:44:34,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:34,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662238343] [2020-10-15 04:44:34,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:35,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:35,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:35,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:35,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:35,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 04:44:35,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:44:35,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 624 [2020-10-15 04:44:35,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:35,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 04:44:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 04:44:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 04:44:35,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 04:44:35,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:35,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:35,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:35,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:35,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:35,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:35,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:35,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:35,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:44:35,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662238343] [2020-10-15 04:44:35,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:35,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 04:44:35,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108567751] [2020-10-15 04:44:35,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 04:44:35,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:35,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 04:44:35,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:44:35,765 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 6 states. [2020-10-15 04:44:36,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:36,081 INFO L93 Difference]: Finished difference Result 393 states and 673 transitions. [2020-10-15 04:44:36,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 04:44:36,083 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-10-15 04:44:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:36,098 INFO L225 Difference]: With dead ends: 393 [2020-10-15 04:44:36,098 INFO L226 Difference]: Without dead ends: 200 [2020-10-15 04:44:36,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-15 04:44:36,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-15 04:44:36,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 191. [2020-10-15 04:44:36,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-15 04:44:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 296 transitions. [2020-10-15 04:44:36,164 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 296 transitions. Word has length 33 [2020-10-15 04:44:36,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:36,165 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 296 transitions. [2020-10-15 04:44:36,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 04:44:36,165 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 296 transitions. [2020-10-15 04:44:36,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-15 04:44:36,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:36,168 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 04:44:36,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 04:44:36,168 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:36,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:36,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1858967261, now seen corresponding path program 1 times [2020-10-15 04:44:36,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:36,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017323180] [2020-10-15 04:44:36,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:36,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:36,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:36,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:36,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:36,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 04:44:36,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:44:36,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-15 04:44:36,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:36,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:44:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-15 04:44:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 04:44:36,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:36,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:36,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:36,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:36,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:36,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:36,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:36,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:36,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:36,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:36,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:36,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:36,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:44:36,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017323180] [2020-10-15 04:44:36,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:44:36,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-15 04:44:36,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397085459] [2020-10-15 04:44:36,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:44:36,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:36,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:44:36,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:44:36,475 INFO L87 Difference]: Start difference. First operand 191 states and 296 transitions. Second operand 4 states. [2020-10-15 04:44:36,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:36,657 INFO L93 Difference]: Finished difference Result 428 states and 663 transitions. [2020-10-15 04:44:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:44:36,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-10-15 04:44:36,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:36,660 INFO L225 Difference]: With dead ends: 428 [2020-10-15 04:44:36,660 INFO L226 Difference]: Without dead ends: 238 [2020-10-15 04:44:36,663 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 [2020-10-15 04:44:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-15 04:44:36,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 228. [2020-10-15 04:44:36,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-15 04:44:36,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 345 transitions. [2020-10-15 04:44:36,680 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 345 transitions. Word has length 50 [2020-10-15 04:44:36,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:36,681 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 345 transitions. [2020-10-15 04:44:36,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:44:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 345 transitions. [2020-10-15 04:44:36,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 04:44:36,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:36,684 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:36,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 04:44:36,685 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:36,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:36,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1405717517, now seen corresponding path program 1 times [2020-10-15 04:44:36,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:36,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026428560] [2020-10-15 04:44:36,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:36,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:36,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:36,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:36,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:36,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 04:44:36,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:44:36,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-15 04:44:36,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:36,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:36,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:44:36,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-15 04:44:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 04:44:36,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:36,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:37,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:37,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:37,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:37,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:37,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:37,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:37,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:37,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 04:44:37,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026428560] [2020-10-15 04:44:37,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:44:37,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-15 04:44:37,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085770987] [2020-10-15 04:44:37,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:44:37,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:37,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:44:37,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:44:37,013 INFO L87 Difference]: Start difference. First operand 228 states and 345 transitions. Second operand 4 states. [2020-10-15 04:44:37,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:37,244 INFO L93 Difference]: Finished difference Result 597 states and 905 transitions. [2020-10-15 04:44:37,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:44:37,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-10-15 04:44:37,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:37,248 INFO L225 Difference]: With dead ends: 597 [2020-10-15 04:44:37,248 INFO L226 Difference]: Without dead ends: 355 [2020-10-15 04:44:37,250 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 [2020-10-15 04:44:37,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-10-15 04:44:37,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 332. [2020-10-15 04:44:37,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-10-15 04:44:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 488 transitions. [2020-10-15 04:44:37,266 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 488 transitions. Word has length 72 [2020-10-15 04:44:37,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:37,266 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 488 transitions. [2020-10-15 04:44:37,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:44:37,267 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 488 transitions. [2020-10-15 04:44:37,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 04:44:37,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:37,269 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:37,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 04:44:37,270 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:37,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:37,270 INFO L82 PathProgramCache]: Analyzing trace with hash 517510517, now seen corresponding path program 1 times [2020-10-15 04:44:37,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:37,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206686990] [2020-10-15 04:44:37,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:37,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:37,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:37,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:37,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:37,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 04:44:37,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:44:37,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-15 04:44:37,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:37,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:37,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:44:37,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-15 04:44:37,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 04:44:37,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:37,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:37,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:37,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:37,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:37,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:37,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:37,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:37,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:37,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:37,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 04:44:37,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206686990] [2020-10-15 04:44:37,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:44:37,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-15 04:44:37,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715030787] [2020-10-15 04:44:37,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:44:37,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:37,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:44:37,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:44:37,605 INFO L87 Difference]: Start difference. First operand 332 states and 488 transitions. Second operand 4 states. [2020-10-15 04:44:37,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:37,904 INFO L93 Difference]: Finished difference Result 858 states and 1260 transitions. [2020-10-15 04:44:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:44:37,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-10-15 04:44:37,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:37,909 INFO L225 Difference]: With dead ends: 858 [2020-10-15 04:44:37,909 INFO L226 Difference]: Without dead ends: 490 [2020-10-15 04:44:37,911 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 [2020-10-15 04:44:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-15 04:44:37,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 424. [2020-10-15 04:44:37,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-15 04:44:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 618 transitions. [2020-10-15 04:44:37,930 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 618 transitions. Word has length 72 [2020-10-15 04:44:37,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:37,931 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 618 transitions. [2020-10-15 04:44:37,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:44:37,931 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 618 transitions. [2020-10-15 04:44:37,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 04:44:37,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:37,934 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-15 04:44:37,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 04:44:37,934 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:37,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:37,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1934466599, now seen corresponding path program 1 times [2020-10-15 04:44:37,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:37,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402347654] [2020-10-15 04:44:37,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:37,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:38,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:38,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:38,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:38,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 04:44:38,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:44:38,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-15 04:44:38,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:38,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:38,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:44:38,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-15 04:44:38,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 04:44:38,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:38,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:38,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:38,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:38,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:38,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:38,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:38,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:38,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:38,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 04:44:38,325 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-15 04:44:38,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402347654] [2020-10-15 04:44:38,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:44:38,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-15 04:44:38,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68536527] [2020-10-15 04:44:38,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:44:38,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:38,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:44:38,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:44:38,329 INFO L87 Difference]: Start difference. First operand 424 states and 618 transitions. Second operand 4 states. [2020-10-15 04:44:38,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:38,560 INFO L93 Difference]: Finished difference Result 1075 states and 1576 transitions. [2020-10-15 04:44:38,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:44:38,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2020-10-15 04:44:38,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:38,565 INFO L225 Difference]: With dead ends: 1075 [2020-10-15 04:44:38,565 INFO L226 Difference]: Without dead ends: 615 [2020-10-15 04:44:38,567 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 [2020-10-15 04:44:38,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2020-10-15 04:44:38,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 500. [2020-10-15 04:44:38,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2020-10-15 04:44:38,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 738 transitions. [2020-10-15 04:44:38,586 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 738 transitions. Word has length 94 [2020-10-15 04:44:38,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:38,586 INFO L479 AbstractCegarLoop]: Abstraction has 500 states and 738 transitions. [2020-10-15 04:44:38,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:44:38,586 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 738 transitions. [2020-10-15 04:44:38,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 04:44:38,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:38,593 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:38,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 04:44:38,594 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:38,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:38,594 INFO L82 PathProgramCache]: Analyzing trace with hash -110996508, now seen corresponding path program 1 times [2020-10-15 04:44:38,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:38,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711919581] [2020-10-15 04:44:38,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:38,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:38,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:38,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:38,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:38,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 04:44:38,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:44:38,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-15 04:44:38,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:38,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-15 04:44:38,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 04:44:38,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 04:44:39,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:39,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:39,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:39,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:39,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:39,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:39,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:39,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:39,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:39,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:39,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:39,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-15 04:44:39,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711919581] [2020-10-15 04:44:39,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:39,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:39,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207754410] [2020-10-15 04:44:39,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:39,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:39,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:39,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:39,043 INFO L87 Difference]: Start difference. First operand 500 states and 738 transitions. Second operand 3 states. [2020-10-15 04:44:39,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:39,247 INFO L93 Difference]: Finished difference Result 1086 states and 1616 transitions. [2020-10-15 04:44:39,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:39,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-10-15 04:44:39,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:39,251 INFO L225 Difference]: With dead ends: 1086 [2020-10-15 04:44:39,251 INFO L226 Difference]: Without dead ends: 570 [2020-10-15 04:44:39,252 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 [2020-10-15 04:44:39,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-10-15 04:44:39,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 555. [2020-10-15 04:44:39,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-10-15 04:44:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 804 transitions. [2020-10-15 04:44:39,269 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 804 transitions. Word has length 101 [2020-10-15 04:44:39,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:39,270 INFO L479 AbstractCegarLoop]: Abstraction has 555 states and 804 transitions. [2020-10-15 04:44:39,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:39,270 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 804 transitions. [2020-10-15 04:44:39,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 04:44:39,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:39,274 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-15 04:44:39,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 04:44:39,275 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:39,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:39,275 INFO L82 PathProgramCache]: Analyzing trace with hash 979480043, now seen corresponding path program 1 times [2020-10-15 04:44:39,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:39,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451680132] [2020-10-15 04:44:39,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:39,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:39,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:39,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:39,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:39,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:39,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:40,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:40,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 04:44:40,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:44:40,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-10-15 04:44:40,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:40,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:40,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-15 04:44:40,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-15 04:44:40,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:40,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:40,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:40,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:40,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:40,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:40,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:40,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:40,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:40,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:40,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:40,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:40,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-15 04:44:40,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451680132] [2020-10-15 04:44:40,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:40,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:40,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296134259] [2020-10-15 04:44:40,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:40,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:40,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:40,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:40,181 INFO L87 Difference]: Start difference. First operand 555 states and 804 transitions. Second operand 3 states. [2020-10-15 04:44:40,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:40,377 INFO L93 Difference]: Finished difference Result 1154 states and 1680 transitions. [2020-10-15 04:44:40,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:40,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-10-15 04:44:40,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:40,381 INFO L225 Difference]: With dead ends: 1154 [2020-10-15 04:44:40,382 INFO L226 Difference]: Without dead ends: 604 [2020-10-15 04:44:40,383 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 [2020-10-15 04:44:40,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-10-15 04:44:40,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 588. [2020-10-15 04:44:40,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2020-10-15 04:44:40,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 852 transitions. [2020-10-15 04:44:40,402 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 852 transitions. Word has length 115 [2020-10-15 04:44:40,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:40,403 INFO L479 AbstractCegarLoop]: Abstraction has 588 states and 852 transitions. [2020-10-15 04:44:40,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:40,403 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 852 transitions. [2020-10-15 04:44:40,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-15 04:44:40,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:40,405 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:40,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 04:44:40,406 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:40,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:40,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1035119561, now seen corresponding path program 2 times [2020-10-15 04:44:40,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:40,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001150281] [2020-10-15 04:44:40,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:40,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:40,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:40,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:40,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:40,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:41,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:41,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:41,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-15 04:44:41,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:44:41,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1088 [2020-10-15 04:44:41,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:41,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:41,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:44:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-15 04:44:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 04:44:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:41,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:41,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:41,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:41,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:41,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:41,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:41,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:41,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:41,605 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 93 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-15 04:44:41,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001150281] [2020-10-15 04:44:41,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:44:41,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-15 04:44:41,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247115847] [2020-10-15 04:44:41,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:44:41,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:41,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:44:41,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:44:41,608 INFO L87 Difference]: Start difference. First operand 588 states and 852 transitions. Second operand 4 states. [2020-10-15 04:44:41,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:41,882 INFO L93 Difference]: Finished difference Result 1683 states and 2435 transitions. [2020-10-15 04:44:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:44:41,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-10-15 04:44:41,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:41,889 INFO L225 Difference]: With dead ends: 1683 [2020-10-15 04:44:41,889 INFO L226 Difference]: Without dead ends: 1108 [2020-10-15 04:44:41,891 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 [2020-10-15 04:44:41,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-10-15 04:44:41,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1081. [2020-10-15 04:44:41,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1081 states. [2020-10-15 04:44:41,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1548 transitions. [2020-10-15 04:44:41,925 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1548 transitions. Word has length 128 [2020-10-15 04:44:41,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:41,925 INFO L479 AbstractCegarLoop]: Abstraction has 1081 states and 1548 transitions. [2020-10-15 04:44:41,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:44:41,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1548 transitions. [2020-10-15 04:44:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-15 04:44:41,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:41,929 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 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] [2020-10-15 04:44:41,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 04:44:41,929 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:41,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:41,929 INFO L82 PathProgramCache]: Analyzing trace with hash 246216398, now seen corresponding path program 1 times [2020-10-15 04:44:41,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:41,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745181706] [2020-10-15 04:44:41,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:41,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:41,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:42,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:42,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:42,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:42,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:43,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:43,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 04:44:43,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:44:43,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1243 [2020-10-15 04:44:43,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:43,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:43,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 04:44:43,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-15 04:44:43,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 04:44:43,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:43,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:43,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:43,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:43,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:43,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:43,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:43,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:43,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:43,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:43,252 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 91 proven. 17 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-15 04:44:43,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745181706] [2020-10-15 04:44:43,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:44:43,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 04:44:43,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309407671] [2020-10-15 04:44:43,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:44:43,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:43,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:44:43,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:44:43,259 INFO L87 Difference]: Start difference. First operand 1081 states and 1548 transitions. Second operand 5 states. [2020-10-15 04:44:43,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:43,600 INFO L93 Difference]: Finished difference Result 2203 states and 3158 transitions. [2020-10-15 04:44:43,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 04:44:43,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-10-15 04:44:43,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:43,606 INFO L225 Difference]: With dead ends: 2203 [2020-10-15 04:44:43,606 INFO L226 Difference]: Without dead ends: 1135 [2020-10-15 04:44:43,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 04:44:43,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2020-10-15 04:44:43,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1078. [2020-10-15 04:44:43,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1078 states. [2020-10-15 04:44:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1550 transitions. [2020-10-15 04:44:43,642 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1550 transitions. Word has length 129 [2020-10-15 04:44:43,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:43,642 INFO L479 AbstractCegarLoop]: Abstraction has 1078 states and 1550 transitions. [2020-10-15 04:44:43,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:44:43,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1550 transitions. [2020-10-15 04:44:43,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-15 04:44:43,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:43,645 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 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] [2020-10-15 04:44:43,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 04:44:43,646 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:43,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:43,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1937565988, now seen corresponding path program 2 times [2020-10-15 04:44:43,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:43,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260392187] [2020-10-15 04:44:43,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:43,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:43,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:43,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:43,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:43,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:43,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:44,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:44,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:44,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 04:44:44,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 04:44:44,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1112 [2020-10-15 04:44:44,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:44,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-15 04:44:44,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-15 04:44:44,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:44:44,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:44,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:44,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:44,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:44,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 04:44:44,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:44,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:44,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:44,819 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-15 04:44:44,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260392187] [2020-10-15 04:44:44,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:44,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:44,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199405428] [2020-10-15 04:44:44,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:44,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:44,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:44,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:44,821 INFO L87 Difference]: Start difference. First operand 1078 states and 1550 transitions. Second operand 3 states. [2020-10-15 04:44:44,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:44,989 INFO L93 Difference]: Finished difference Result 2226 states and 3204 transitions. [2020-10-15 04:44:44,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:44,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-10-15 04:44:44,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:44,995 INFO L225 Difference]: With dead ends: 2226 [2020-10-15 04:44:44,995 INFO L226 Difference]: Without dead ends: 1030 [2020-10-15 04:44:44,998 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 [2020-10-15 04:44:45,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2020-10-15 04:44:45,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1027. [2020-10-15 04:44:45,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1027 states. [2020-10-15 04:44:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1476 transitions. [2020-10-15 04:44:45,042 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1476 transitions. Word has length 129 [2020-10-15 04:44:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:45,042 INFO L479 AbstractCegarLoop]: Abstraction has 1027 states and 1476 transitions. [2020-10-15 04:44:45,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1476 transitions. [2020-10-15 04:44:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-15 04:44:45,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:45,045 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:45,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 04:44:45,046 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:45,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:45,046 INFO L82 PathProgramCache]: Analyzing trace with hash 558356394, now seen corresponding path program 1 times [2020-10-15 04:44:45,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:45,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717827038] [2020-10-15 04:44:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:45,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:45,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:45,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:45,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:45,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:45,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:45,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-15 04:44:45,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:44:45,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 923 [2020-10-15 04:44:45,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:45,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-15 04:44:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 04:44:45,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:44:46,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:46,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:46,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:46,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:46,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:46,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 04:44:46,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:46,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:46,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:46,037 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-15 04:44:46,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717827038] [2020-10-15 04:44:46,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:46,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:46,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438072766] [2020-10-15 04:44:46,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:46,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:46,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:46,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:46,039 INFO L87 Difference]: Start difference. First operand 1027 states and 1476 transitions. Second operand 3 states. [2020-10-15 04:44:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:46,258 INFO L93 Difference]: Finished difference Result 2185 states and 3154 transitions. [2020-10-15 04:44:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:46,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-10-15 04:44:46,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:46,265 INFO L225 Difference]: With dead ends: 2185 [2020-10-15 04:44:46,265 INFO L226 Difference]: Without dead ends: 1141 [2020-10-15 04:44:46,269 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 [2020-10-15 04:44:46,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2020-10-15 04:44:46,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1087. [2020-10-15 04:44:46,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2020-10-15 04:44:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1556 transitions. [2020-10-15 04:44:46,306 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1556 transitions. Word has length 135 [2020-10-15 04:44:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:46,307 INFO L479 AbstractCegarLoop]: Abstraction has 1087 states and 1556 transitions. [2020-10-15 04:44:46,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:46,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1556 transitions. [2020-10-15 04:44:46,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-15 04:44:46,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:46,310 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:46,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 04:44:46,310 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:46,311 INFO L82 PathProgramCache]: Analyzing trace with hash -663940454, now seen corresponding path program 1 times [2020-10-15 04:44:46,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:46,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749949047] [2020-10-15 04:44:46,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:46,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:46,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:46,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:46,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:46,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:47,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:47,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-15 04:44:47,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:44:47,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-10-15 04:44:47,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:47,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:47,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:47,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-15 04:44:47,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-15 04:44:47,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:44:47,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:47,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:47,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:47,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:47,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:47,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 04:44:47,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:47,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:47,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:47,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:47,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:47,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:47,393 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-15 04:44:47,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749949047] [2020-10-15 04:44:47,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:47,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:47,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667684174] [2020-10-15 04:44:47,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:47,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:47,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:47,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:47,395 INFO L87 Difference]: Start difference. First operand 1087 states and 1556 transitions. Second operand 3 states. [2020-10-15 04:44:47,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:47,569 INFO L93 Difference]: Finished difference Result 3235 states and 4634 transitions. [2020-10-15 04:44:47,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:47,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-10-15 04:44:47,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:47,580 INFO L225 Difference]: With dead ends: 3235 [2020-10-15 04:44:47,581 INFO L226 Difference]: Without dead ends: 2161 [2020-10-15 04:44:47,584 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 [2020-10-15 04:44:47,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2020-10-15 04:44:47,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2159. [2020-10-15 04:44:47,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2159 states. [2020-10-15 04:44:47,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2159 states to 2159 states and 3045 transitions. [2020-10-15 04:44:47,669 INFO L78 Accepts]: Start accepts. Automaton has 2159 states and 3045 transitions. Word has length 138 [2020-10-15 04:44:47,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:47,669 INFO L479 AbstractCegarLoop]: Abstraction has 2159 states and 3045 transitions. [2020-10-15 04:44:47,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:47,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2159 states and 3045 transitions. [2020-10-15 04:44:47,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-15 04:44:47,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:47,674 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:47,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 04:44:47,674 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:47,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:47,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1675057704, now seen corresponding path program 1 times [2020-10-15 04:44:47,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:47,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717503583] [2020-10-15 04:44:47,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:47,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:47,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:47,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:47,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:48,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:48,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-15 04:44:48,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:44:48,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 473 [2020-10-15 04:44:48,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:48,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:44:48,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-15 04:44:48,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 04:44:48,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:48,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:48,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:48,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:48,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:48,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:48,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:48,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:48,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:48,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:48,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-15 04:44:48,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717503583] [2020-10-15 04:44:48,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:44:48,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-15 04:44:48,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098926251] [2020-10-15 04:44:48,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:44:48,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:48,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:44:48,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:44:48,236 INFO L87 Difference]: Start difference. First operand 2159 states and 3045 transitions. Second operand 4 states. [2020-10-15 04:44:48,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:48,604 INFO L93 Difference]: Finished difference Result 4865 states and 6921 transitions. [2020-10-15 04:44:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:44:48,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2020-10-15 04:44:48,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:48,617 INFO L225 Difference]: With dead ends: 4865 [2020-10-15 04:44:48,617 INFO L226 Difference]: Without dead ends: 2659 [2020-10-15 04:44:48,631 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 [2020-10-15 04:44:48,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2020-10-15 04:44:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2301. [2020-10-15 04:44:48,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2301 states. [2020-10-15 04:44:48,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3274 transitions. [2020-10-15 04:44:48,715 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3274 transitions. Word has length 138 [2020-10-15 04:44:48,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:48,716 INFO L479 AbstractCegarLoop]: Abstraction has 2301 states and 3274 transitions. [2020-10-15 04:44:48,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:44:48,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3274 transitions. [2020-10-15 04:44:48,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-15 04:44:48,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:48,722 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:48,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 04:44:48,723 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:48,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:48,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1460176142, now seen corresponding path program 1 times [2020-10-15 04:44:48,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:48,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556560821] [2020-10-15 04:44:48,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:48,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:48,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:48,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:48,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:48,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:49,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:49,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:49,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-15 04:44:49,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:44:49,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-15 04:44:49,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:49,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:49,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:49,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-15 04:44:49,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 04:44:49,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:44:49,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:49,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:49,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:49,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:49,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:49,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:49,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:49,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 04:44:49,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556560821] [2020-10-15 04:44:49,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:49,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:49,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274857644] [2020-10-15 04:44:49,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:49,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:49,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:49,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:49,171 INFO L87 Difference]: Start difference. First operand 2301 states and 3274 transitions. Second operand 3 states. [2020-10-15 04:44:49,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:49,420 INFO L93 Difference]: Finished difference Result 4848 states and 6866 transitions. [2020-10-15 04:44:49,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:49,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-10-15 04:44:49,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:49,432 INFO L225 Difference]: With dead ends: 4848 [2020-10-15 04:44:49,433 INFO L226 Difference]: Without dead ends: 2544 [2020-10-15 04:44:49,438 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 [2020-10-15 04:44:49,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2020-10-15 04:44:49,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2439. [2020-10-15 04:44:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2439 states. [2020-10-15 04:44:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3412 transitions. [2020-10-15 04:44:49,520 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3412 transitions. Word has length 147 [2020-10-15 04:44:49,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:49,520 INFO L479 AbstractCegarLoop]: Abstraction has 2439 states and 3412 transitions. [2020-10-15 04:44:49,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:49,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3412 transitions. [2020-10-15 04:44:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-15 04:44:49,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:49,524 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:49,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 04:44:49,525 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:49,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1165219020, now seen corresponding path program 1 times [2020-10-15 04:44:49,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:49,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179352617] [2020-10-15 04:44:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:49,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:49,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:49,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:49,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:49,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-15 04:44:49,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:44:49,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-15 04:44:49,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:49,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:49,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:49,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-15 04:44:49,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 04:44:49,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:49,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:49,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:49,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:49,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:49,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:49,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 04:44:49,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:49,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:49,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:49,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:50,000 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-10-15 04:44:50,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179352617] [2020-10-15 04:44:50,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:50,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:50,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107220331] [2020-10-15 04:44:50,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:50,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:50,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:50,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:50,002 INFO L87 Difference]: Start difference. First operand 2439 states and 3412 transitions. Second operand 3 states. [2020-10-15 04:44:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:50,140 INFO L93 Difference]: Finished difference Result 7211 states and 10066 transitions. [2020-10-15 04:44:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:50,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-15 04:44:50,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:50,162 INFO L225 Difference]: With dead ends: 7211 [2020-10-15 04:44:50,162 INFO L226 Difference]: Without dead ends: 4785 [2020-10-15 04:44:50,170 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 [2020-10-15 04:44:50,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2020-10-15 04:44:50,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4783. [2020-10-15 04:44:50,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4783 states. [2020-10-15 04:44:50,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4783 states to 4783 states and 6658 transitions. [2020-10-15 04:44:50,370 INFO L78 Accepts]: Start accepts. Automaton has 4783 states and 6658 transitions. Word has length 159 [2020-10-15 04:44:50,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:50,370 INFO L479 AbstractCegarLoop]: Abstraction has 4783 states and 6658 transitions. [2020-10-15 04:44:50,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:50,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4783 states and 6658 transitions. [2020-10-15 04:44:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-15 04:44:50,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:50,379 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:50,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 04:44:50,379 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:50,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:50,380 INFO L82 PathProgramCache]: Analyzing trace with hash -613767472, now seen corresponding path program 1 times [2020-10-15 04:44:50,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:50,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814701573] [2020-10-15 04:44:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:50,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:50,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:50,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:50,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-15 04:44:50,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:44:50,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-15 04:44:50,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:50,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-15 04:44:50,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 04:44:50,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:50,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:50,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:50,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:50,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:50,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:50,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 04:44:50,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:50,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:50,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2020-10-15 04:44:50,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814701573] [2020-10-15 04:44:50,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:50,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:50,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600171302] [2020-10-15 04:44:50,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:50,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:50,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:50,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:50,707 INFO L87 Difference]: Start difference. First operand 4783 states and 6658 transitions. Second operand 3 states. [2020-10-15 04:44:51,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:51,012 INFO L93 Difference]: Finished difference Result 14155 states and 19628 transitions. [2020-10-15 04:44:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:51,012 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-10-15 04:44:51,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:51,069 INFO L225 Difference]: With dead ends: 14155 [2020-10-15 04:44:51,069 INFO L226 Difference]: Without dead ends: 9385 [2020-10-15 04:44:51,078 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 [2020-10-15 04:44:51,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9385 states. [2020-10-15 04:44:51,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9385 to 4807. [2020-10-15 04:44:51,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4807 states. [2020-10-15 04:44:51,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4807 states to 4807 states and 6682 transitions. [2020-10-15 04:44:51,309 INFO L78 Accepts]: Start accepts. Automaton has 4807 states and 6682 transitions. Word has length 161 [2020-10-15 04:44:51,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:51,309 INFO L479 AbstractCegarLoop]: Abstraction has 4807 states and 6682 transitions. [2020-10-15 04:44:51,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:51,310 INFO L276 IsEmpty]: Start isEmpty. Operand 4807 states and 6682 transitions. [2020-10-15 04:44:51,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-15 04:44:51,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:51,315 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:51,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 04:44:51,316 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:51,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:51,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1294690318, now seen corresponding path program 1 times [2020-10-15 04:44:51,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:51,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043682297] [2020-10-15 04:44:51,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:51,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:51,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:51,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-15 04:44:51,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:51,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-15 04:44:51,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:51,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-15 04:44:51,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 04:44:51,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:51,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:51,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:51,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:51,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:51,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:51,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 04:44:51,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:51,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:51,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:51,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:51,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:51,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:51,541 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2020-10-15 04:44:51,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1043682297] [2020-10-15 04:44:51,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:51,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:51,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101443646] [2020-10-15 04:44:51,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:51,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:51,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:51,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:51,544 INFO L87 Difference]: Start difference. First operand 4807 states and 6682 transitions. Second operand 3 states. [2020-10-15 04:44:51,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:51,827 INFO L93 Difference]: Finished difference Result 14155 states and 19580 transitions. [2020-10-15 04:44:51,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:51,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-10-15 04:44:51,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:51,851 INFO L225 Difference]: With dead ends: 14155 [2020-10-15 04:44:51,852 INFO L226 Difference]: Without dead ends: 9361 [2020-10-15 04:44:51,864 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 [2020-10-15 04:44:51,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9361 states. [2020-10-15 04:44:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9361 to 4807. [2020-10-15 04:44:52,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4807 states. [2020-10-15 04:44:52,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4807 states to 4807 states and 6658 transitions. [2020-10-15 04:44:52,085 INFO L78 Accepts]: Start accepts. Automaton has 4807 states and 6658 transitions. Word has length 161 [2020-10-15 04:44:52,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:52,085 INFO L479 AbstractCegarLoop]: Abstraction has 4807 states and 6658 transitions. [2020-10-15 04:44:52,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:52,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4807 states and 6658 transitions. [2020-10-15 04:44:52,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-15 04:44:52,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:52,091 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:52,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 04:44:52,091 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:52,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:52,092 INFO L82 PathProgramCache]: Analyzing trace with hash 774431505, now seen corresponding path program 1 times [2020-10-15 04:44:52,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:52,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662298619] [2020-10-15 04:44:52,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 04:44:52,122 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 04:44:52,122 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 04:44:52,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 04:44:52,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:44:52 BoogieIcfgContainer [2020-10-15 04:44:52,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 04:44:52,184 INFO L168 Benchmark]: Toolchain (without parser) took 18837.66 ms. Allocated memory was 147.3 MB in the beginning and 540.0 MB in the end (delta: 392.7 MB). Free memory was 101.6 MB in the beginning and 99.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 395.3 MB. Max. memory is 7.1 GB. [2020-10-15 04:44:52,185 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.2 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-15 04:44:52,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.00 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.6 MB in the beginning and 179.4 MB in the end (delta: -77.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-15 04:44:52,190 INFO L168 Benchmark]: Boogie Preprocessor took 58.92 ms. Allocated memory is still 204.5 MB. Free memory was 179.4 MB in the beginning and 176.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-15 04:44:52,191 INFO L168 Benchmark]: RCFGBuilder took 810.50 ms. Allocated memory is still 204.5 MB. Free memory was 176.5 MB in the beginning and 118.1 MB in the end (delta: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. [2020-10-15 04:44:52,192 INFO L168 Benchmark]: TraceAbstraction took 17426.83 ms. Allocated memory was 204.5 MB in the beginning and 540.0 MB in the end (delta: 335.5 MB). Free memory was 118.1 MB in the beginning and 99.0 MB in the end (delta: 19.1 MB). Peak memory consumption was 354.6 MB. Max. memory is 7.1 GB. [2020-10-15 04:44:52,198 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.2 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 537.00 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.6 MB in the beginning and 179.4 MB in the end (delta: -77.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.92 ms. Allocated memory is still 204.5 MB. Free memory was 179.4 MB in the beginning and 176.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 810.50 ms. Allocated memory is still 204.5 MB. Free memory was 176.5 MB in the beginning and 118.1 MB in the end (delta: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17426.83 ms. Allocated memory was 204.5 MB in the beginning and 540.0 MB in the end (delta: 335.5 MB). Free memory was 118.1 MB in the beginning and 99.0 MB in the end (delta: 19.1 MB). Peak memory consumption was 354.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 697]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L702] int s ; [L703] int tmp ; [L707] s = 8464 [L708] CALL ssl3_accept(s) [L12] int s__info_callback = __VERIFIER_nondet_int() ; [L13] int s__in_handshake = __VERIFIER_nondet_int() ; [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int() ; [L18] int s__type ; [L19] int s__init_num ; [L20] int s__hit = __VERIFIER_nondet_int() ; [L21] int s__rwstate ; [L22] int s__init_buf___0 = 1; [L23] int s__debug = __VERIFIER_nondet_int() ; [L24] int s__shutdown ; [L25] int s__cert = __VERIFIER_nondet_int() ; [L26] int s__options = __VERIFIER_nondet_int() ; [L27] int s__verify_mode = __VERIFIER_nondet_int() ; [L28] int s__session__peer = __VERIFIER_nondet_int() ; [L29] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L30] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L33] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L34] int s__s3__tmp__cert_request ; [L35] int s__s3__tmp__reuse_message ; [L36] int s__s3__tmp__use_rsa_tmp ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_cipher__algo_strength ; [L41] int s__session__cipher ; [L42] int buf ; [L43] unsigned long l ; [L44] unsigned long Time ; [L45] unsigned long tmp ; [L46] int cb ; [L47] long num1 = __VERIFIER_nondet_long() ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int got_new_session ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 ; [L60] long tmp___8 = __VERIFIER_nondet_long() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int tmp___10 = __VERIFIER_nondet_int() ; [L63] int blastFlag ; [L64] int __cil_tmp55 ; [L65] unsigned long __cil_tmp56 ; [L66] unsigned long __cil_tmp57 ; [L67] unsigned long __cil_tmp58 ; [L68] unsigned long __cil_tmp59 ; [L69] int __cil_tmp60 ; [L70] unsigned long __cil_tmp61 = __VERIFIER_nondet_ulong() ; [L74] s__state = initial_state [L75] blastFlag = 0 [L76] tmp = __VERIFIER_nondet_int() [L77] Time = tmp [L78] cb = 0 [L79] ret = -1 [L80] skip = 0 [L81] got_new_session = 0 [L82] COND TRUE s__info_callback != 0 [L83] cb = s__info_callback [L89] s__in_handshake ++ [L90] COND FALSE !(tmp___1 + 12288) [L95] COND FALSE !(s__cert == 0) [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND TRUE s__state == 8464 [L272] s__shutdown = 0 [L273] ret = __VERIFIER_nondet_int() [L274] COND TRUE blastFlag == 0 [L275] blastFlag = 1 [L277] COND FALSE !(ret <= 0) [L280] got_new_session = 1 [L281] s__state = 8496 [L282] s__init_num = 0 [L651] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L652] COND FALSE !(! s__s3__tmp__reuse_message) [L686] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND TRUE s__state == 8496 [L286] ret = __VERIFIER_nondet_int() [L287] COND TRUE blastFlag == 1 [L288] blastFlag = 2 [L290] COND FALSE !(ret <= 0) [L293] COND FALSE !(\read(s__hit)) [L296] s__state = 8512 [L298] s__init_num = 0 [L651] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L652] COND FALSE !(! s__s3__tmp__reuse_message) [L686] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND TRUE s__state == 8512 [L303] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L304] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L305] COND TRUE __cil_tmp56 + 256UL [L306] __cil_tmp56 = 256345 [L307] skip = 1 [L318] s__state = 8528 [L319] s__init_num = 0 [L651] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L652] COND FALSE !(! s__s3__tmp__reuse_message) [L686] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND TRUE s__state == 8528 [L323] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L324] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L326] __cil_tmp57 = (unsigned long )s__options [L327] COND TRUE __cil_tmp57 + 2097152UL [L328] s__s3__tmp__use_rsa_tmp = 1 [L333] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L361] ret = __VERIFIER_nondet_int() [L362] COND FALSE !(blastFlag == 3) [L365] COND FALSE !(ret <= 0) [L382] s__state = 8544 [L383] s__init_num = 0 [L651] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L652] COND FALSE !(! s__s3__tmp__reuse_message) [L686] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND TRUE s__state == 8544 [L387] COND TRUE s__verify_mode + 1 [L388] COND TRUE s__session__peer != 0 [L389] COND TRUE s__verify_mode + 4 [L390] s__verify_mode = 123 [L391] skip = 1 [L392] s__s3__tmp__cert_request = 0 [L393] s__state = 8560 [L651] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L652] COND FALSE !(! s__s3__tmp__reuse_message) [L686] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND TRUE s__state == 8560 [L437] ret = __VERIFIER_nondet_int() [L438] COND FALSE !(ret <= 0) [L441] s__s3__tmp__next_state___0 = 8576 [L442] s__state = 8448 [L443] s__init_num = 0 [L651] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L652] COND TRUE ! s__s3__tmp__reuse_message [L653] COND TRUE ! skip [L654] COND TRUE state == 8560 [L655] COND TRUE s__state == 8448 [L656] COND TRUE s__verify_mode != -1 [L657] COND TRUE s__verify_mode != -2 [L658] COND TRUE __cil_tmp61 != 9021 [L659] COND TRUE __cil_tmp58 != 4294967294 [L660] COND TRUE blastFlag != 4 [L661] COND TRUE tmp___7 != 1024 [L697] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 175 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.3s, OverallIterations: 18, TraceHistogramMax: 6, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5294 SDtfs, 3312 SDslu, 5594 SDs, 0 SdLazy, 1980 SolverSat, 477 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4807occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 9994 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 2124 NumberOfCodeBlocks, 2124 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1945 ConstructedInterpolants, 0 QuantifiedInterpolants, 371477 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 10 PerfectInterpolantSequences, 2137/2175 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...