/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:25:57,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:25:57,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:25:57,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:25:57,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:25:57,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:25:57,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:25:57,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:25:57,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:25:57,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:25:57,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:25:57,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:25:57,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:25:57,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:25:57,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:25:57,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:25:57,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:25:57,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:25:57,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:25:57,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:25:57,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:25:57,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:25:57,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:25:57,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:25:57,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:25:57,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:25:57,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:25:57,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:25:57,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:25:57,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:25:57,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:25:57,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:25:57,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:25:57,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:25:57,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:25:57,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:25:57,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:25:57,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:25:57,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:25:57,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:25:57,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:25:57,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:25:57,532 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:25:57,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:25:57,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:25:57,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:25:57,534 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:25:57,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:25:57,534 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:25:57,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:25:57,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:25:57,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:25:57,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:25:57,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:25:57,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:25:57,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:25:57,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:25:57,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:25:57,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:25:57,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:25:57,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:25:57,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:25:57,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:25:57,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:25:57,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:25:57,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:25:57,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:25:57,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:25:57,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:25:57,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:25:57,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:25:57,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:25:58,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:25:58,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:25:58,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:25:58,061 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:25:58,063 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:25:58,064 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_12.cil.c [2020-09-25 13:25:58,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dfdf9eb0/37612d9adbe544af9e20a2561acee683/FLAG5e8cc03e2 [2020-09-25 13:25:58,691 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:25:58,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_12.cil.c [2020-09-25 13:25:58,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dfdf9eb0/37612d9adbe544af9e20a2561acee683/FLAG5e8cc03e2 [2020-09-25 13:25:58,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dfdf9eb0/37612d9adbe544af9e20a2561acee683 [2020-09-25 13:25:59,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:25:59,015 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:25:59,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:25:59,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:25:59,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:25:59,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:25:58" (1/1) ... [2020-09-25 13:25:59,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68901205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59, skipping insertion in model container [2020-09-25 13:25:59,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:25:58" (1/1) ... [2020-09-25 13:25:59,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:25:59,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:25:59,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:25:59,402 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:25:59,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:25:59,598 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:25:59,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59 WrapperNode [2020-09-25 13:25:59,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:25:59,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:25:59,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:25:59,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:25:59,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59" (1/1) ... [2020-09-25 13:25:59,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59" (1/1) ... [2020-09-25 13:25:59,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59" (1/1) ... [2020-09-25 13:25:59,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59" (1/1) ... [2020-09-25 13:25:59,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59" (1/1) ... [2020-09-25 13:25:59,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59" (1/1) ... [2020-09-25 13:25:59,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59" (1/1) ... [2020-09-25 13:25:59,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:25:59,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:25:59,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:25:59,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:25:59,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:25:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:25:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:25:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 13:25:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:25:59,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:25:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 13:25:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:25:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 13:25:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 13:25:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 13:25:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:25:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:25:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:26:00,007 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 13:26:00,694 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 13:26:00,695 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 13:26:00,713 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:26:00,713 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:26:00,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:26:00 BoogieIcfgContainer [2020-09-25 13:26:00,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:26:00,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:26:00,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:26:00,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:26:00,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:25:58" (1/3) ... [2020-09-25 13:26:00,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70464a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:26:00, skipping insertion in model container [2020-09-25 13:26:00,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:59" (2/3) ... [2020-09-25 13:26:00,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70464a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:26:00, skipping insertion in model container [2020-09-25 13:26:00,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:26:00" (3/3) ... [2020-09-25 13:26:00,732 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_12.cil.c [2020-09-25 13:26:00,743 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:26:00,754 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:26:00,777 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:26:00,810 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:26:00,811 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:26:00,811 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:26:00,811 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:26:00,811 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:26:00,812 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:26:00,812 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:26:00,812 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:26:00,844 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states. [2020-09-25 13:26:00,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 13:26:00,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:00,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:00,867 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:00,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:00,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1996743066, now seen corresponding path program 1 times [2020-09-25 13:26:00,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:00,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776306330] [2020-09-25 13:26:00,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:01,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:01,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:01,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:02,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:02,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:02,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-25 13:26:02,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:26:02,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1442 [2020-09-25 13:26:02,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:02,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:02,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:26:02,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 13:26:02,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-25 13:26:02,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:26:02,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:02,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:02,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:02,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:02,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:02,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:26:02,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:02,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:02,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:02,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:02,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776306330] [2020-09-25 13:26:02,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:02,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:26:02,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867318564] [2020-09-25 13:26:02,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:26:02,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:02,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:26:02,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:26:02,932 INFO L87 Difference]: Start difference. First operand 471 states. Second operand 6 states. [2020-09-25 13:26:03,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:03,334 INFO L93 Difference]: Finished difference Result 845 states and 1110 transitions. [2020-09-25 13:26:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:26:03,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-09-25 13:26:03,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:03,359 INFO L225 Difference]: With dead ends: 845 [2020-09-25 13:26:03,360 INFO L226 Difference]: Without dead ends: 472 [2020-09-25 13:26:03,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:26:03,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-09-25 13:26:03,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 461. [2020-09-25 13:26:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-09-25 13:26:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 560 transitions. [2020-09-25 13:26:03,473 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 560 transitions. Word has length 161 [2020-09-25 13:26:03,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:03,477 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 560 transitions. [2020-09-25 13:26:03,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:26:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 560 transitions. [2020-09-25 13:26:03,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 13:26:03,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:03,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:03,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:26:03,491 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:03,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:03,492 INFO L82 PathProgramCache]: Analyzing trace with hash 508400321, now seen corresponding path program 1 times [2020-09-25 13:26:03,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:03,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338706306] [2020-09-25 13:26:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:03,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:03,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:03,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:04,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:04,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:04,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 13:26:04,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:26:04,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1247 [2020-09-25 13:26:04,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:04,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:26:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 13:26:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-25 13:26:04,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:04,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:04,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:04,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:04,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:04,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:04,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:26:04,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:04,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:04,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:04,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:04,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:04,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:26:04,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:04,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338706306] [2020-09-25 13:26:04,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:04,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:26:04,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115004319] [2020-09-25 13:26:04,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:26:04,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:04,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:26:04,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:26:04,989 INFO L87 Difference]: Start difference. First operand 461 states and 560 transitions. Second operand 7 states. [2020-09-25 13:26:05,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:05,373 INFO L93 Difference]: Finished difference Result 941 states and 1195 transitions. [2020-09-25 13:26:05,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 13:26:05,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-09-25 13:26:05,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:05,382 INFO L225 Difference]: With dead ends: 941 [2020-09-25 13:26:05,383 INFO L226 Difference]: Without dead ends: 607 [2020-09-25 13:26:05,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:26:05,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-09-25 13:26:05,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 570. [2020-09-25 13:26:05,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-09-25 13:26:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 691 transitions. [2020-09-25 13:26:05,426 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 691 transitions. Word has length 170 [2020-09-25 13:26:05,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:05,428 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 691 transitions. [2020-09-25 13:26:05,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:26:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 691 transitions. [2020-09-25 13:26:05,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 13:26:05,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:05,433 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:05,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:26:05,433 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:05,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:05,434 INFO L82 PathProgramCache]: Analyzing trace with hash -2044458217, now seen corresponding path program 1 times [2020-09-25 13:26:05,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:05,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256545517] [2020-09-25 13:26:05,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:05,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:06,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:06,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:06,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 13:26:06,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:26:06,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 911 [2020-09-25 13:26:06,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:06,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:06,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:06,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 13:26:06,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 13:26:06,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:06,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:06,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:06,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:06,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:06,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:06,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:06,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:06,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:06,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:06,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 13:26:06,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256545517] [2020-09-25 13:26:06,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:06,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:06,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769497179] [2020-09-25 13:26:06,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:06,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:06,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:06,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:06,449 INFO L87 Difference]: Start difference. First operand 570 states and 691 transitions. Second operand 3 states. [2020-09-25 13:26:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:06,572 INFO L93 Difference]: Finished difference Result 1017 states and 1256 transitions. [2020-09-25 13:26:06,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:06,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2020-09-25 13:26:06,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:06,577 INFO L225 Difference]: With dead ends: 1017 [2020-09-25 13:26:06,577 INFO L226 Difference]: Without dead ends: 586 [2020-09-25 13:26:06,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:06,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-09-25 13:26:06,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2020-09-25 13:26:06,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-09-25 13:26:06,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 707 transitions. [2020-09-25 13:26:06,597 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 707 transitions. Word has length 186 [2020-09-25 13:26:06,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:06,597 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 707 transitions. [2020-09-25 13:26:06,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:06,598 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 707 transitions. [2020-09-25 13:26:06,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 13:26:06,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:06,600 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:06,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:26:06,601 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:06,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:06,601 INFO L82 PathProgramCache]: Analyzing trace with hash 570616873, now seen corresponding path program 1 times [2020-09-25 13:26:06,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:06,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669851722] [2020-09-25 13:26:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:06,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:06,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:06,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:07,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:07,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:07,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 13:26:07,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:26:07,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-09-25 13:26:07,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:07,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:07,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:07,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 13:26:07,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 13:26:07,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:07,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:07,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:07,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:07,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:07,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:07,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:26:07,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:07,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:07,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:07,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:07,217 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:07,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669851722] [2020-09-25 13:26:07,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:07,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:07,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440126719] [2020-09-25 13:26:07,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:07,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:07,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:07,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:07,220 INFO L87 Difference]: Start difference. First operand 586 states and 707 transitions. Second operand 3 states. [2020-09-25 13:26:07,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:07,456 INFO L93 Difference]: Finished difference Result 1112 states and 1397 transitions. [2020-09-25 13:26:07,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:07,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-09-25 13:26:07,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:07,461 INFO L225 Difference]: With dead ends: 1112 [2020-09-25 13:26:07,461 INFO L226 Difference]: Without dead ends: 656 [2020-09-25 13:26:07,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:07,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2020-09-25 13:26:07,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 638. [2020-09-25 13:26:07,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 638 states. [2020-09-25 13:26:07,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 782 transitions. [2020-09-25 13:26:07,483 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 782 transitions. Word has length 187 [2020-09-25 13:26:07,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:07,484 INFO L479 AbstractCegarLoop]: Abstraction has 638 states and 782 transitions. [2020-09-25 13:26:07,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:07,484 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 782 transitions. [2020-09-25 13:26:07,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 13:26:07,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:07,487 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:07,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:26:07,487 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:07,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:07,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1925663772, now seen corresponding path program 1 times [2020-09-25 13:26:07,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:07,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847098753] [2020-09-25 13:26:07,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:07,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:07,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:07,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:07,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:07,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:08,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:08,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:08,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:08,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 13:26:08,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:26:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1146 [2020-09-25 13:26:08,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:08,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 13:26:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:26:08,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:08,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:08,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:08,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:08,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:08,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:08,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:08,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:08,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:08,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:08,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:08,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:08,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:08,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847098753] [2020-09-25 13:26:08,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:08,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:08,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943069074] [2020-09-25 13:26:08,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:08,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:08,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:08,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:08,726 INFO L87 Difference]: Start difference. First operand 638 states and 782 transitions. Second operand 3 states. [2020-09-25 13:26:09,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:09,004 INFO L93 Difference]: Finished difference Result 1252 states and 1600 transitions. [2020-09-25 13:26:09,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:09,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2020-09-25 13:26:09,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:09,011 INFO L225 Difference]: With dead ends: 1252 [2020-09-25 13:26:09,011 INFO L226 Difference]: Without dead ends: 747 [2020-09-25 13:26:09,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:09,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-09-25 13:26:09,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 706. [2020-09-25 13:26:09,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-25 13:26:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 872 transitions. [2020-09-25 13:26:09,046 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 872 transitions. Word has length 193 [2020-09-25 13:26:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:09,047 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 872 transitions. [2020-09-25 13:26:09,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 872 transitions. [2020-09-25 13:26:09,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 13:26:09,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:09,053 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:09,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:26:09,054 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:09,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:09,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1436054601, now seen corresponding path program 1 times [2020-09-25 13:26:09,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:09,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36911932] [2020-09-25 13:26:09,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:09,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:09,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:09,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:09,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:10,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:10,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-25 13:26:10,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:26:10,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1337 [2020-09-25 13:26:10,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:10,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 13:26:10,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 13:26:10,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:10,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:10,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:10,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:10,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:10,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:10,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:10,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:10,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:10,505 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:10,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36911932] [2020-09-25 13:26:10,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:10,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:26:10,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628620348] [2020-09-25 13:26:10,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:26:10,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:10,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:26:10,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:26:10,509 INFO L87 Difference]: Start difference. First operand 706 states and 872 transitions. Second operand 4 states. [2020-09-25 13:26:10,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:10,916 INFO L93 Difference]: Finished difference Result 1867 states and 2399 transitions. [2020-09-25 13:26:10,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:26:10,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-09-25 13:26:10,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:10,924 INFO L225 Difference]: With dead ends: 1867 [2020-09-25 13:26:10,925 INFO L226 Difference]: Without dead ends: 1316 [2020-09-25 13:26:10,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:26:10,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2020-09-25 13:26:10,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 709. [2020-09-25 13:26:10,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2020-09-25 13:26:10,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 875 transitions. [2020-09-25 13:26:10,954 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 875 transitions. Word has length 195 [2020-09-25 13:26:10,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:10,955 INFO L479 AbstractCegarLoop]: Abstraction has 709 states and 875 transitions. [2020-09-25 13:26:10,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:26:10,955 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 875 transitions. [2020-09-25 13:26:10,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 13:26:10,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:10,958 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:10,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:26:10,959 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:10,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:10,959 INFO L82 PathProgramCache]: Analyzing trace with hash -824296388, now seen corresponding path program 1 times [2020-09-25 13:26:10,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:10,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688050375] [2020-09-25 13:26:10,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:11,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:12,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:12,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:12,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 13:26:12,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:26:12,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1892 [2020-09-25 13:26:12,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:12,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:12,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:12,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 13:26:12,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:26:12,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:12,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:12,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:12,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:12,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:12,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:12,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:12,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:12,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:12,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:12,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:12,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688050375] [2020-09-25 13:26:12,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:12,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:26:12,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679836847] [2020-09-25 13:26:12,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:26:12,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:12,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:26:12,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:26:12,983 INFO L87 Difference]: Start difference. First operand 709 states and 875 transitions. Second operand 4 states. [2020-09-25 13:26:13,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:13,304 INFO L93 Difference]: Finished difference Result 1861 states and 2360 transitions. [2020-09-25 13:26:13,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:26:13,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 201 [2020-09-25 13:26:13,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:13,313 INFO L225 Difference]: With dead ends: 1861 [2020-09-25 13:26:13,313 INFO L226 Difference]: Without dead ends: 1307 [2020-09-25 13:26:13,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:26:13,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2020-09-25 13:26:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 717. [2020-09-25 13:26:13,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-09-25 13:26:13,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 883 transitions. [2020-09-25 13:26:13,341 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 883 transitions. Word has length 201 [2020-09-25 13:26:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:13,341 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 883 transitions. [2020-09-25 13:26:13,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:26:13,342 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 883 transitions. [2020-09-25 13:26:13,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-25 13:26:13,345 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:13,345 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:13,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:26:13,345 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:13,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:13,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1597515948, now seen corresponding path program 1 times [2020-09-25 13:26:13,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:13,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164925567] [2020-09-25 13:26:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:13,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:13,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:13,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:13,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:13,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-25 13:26:13,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:13,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-09-25 13:26:13,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:13,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:13,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:13,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 13:26:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 13:26:13,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:14,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:14,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:14,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:14,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:14,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:14,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:14,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:14,045 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:14,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164925567] [2020-09-25 13:26:14,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:14,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:14,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585313376] [2020-09-25 13:26:14,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:14,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:14,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:14,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:14,048 INFO L87 Difference]: Start difference. First operand 717 states and 883 transitions. Second operand 3 states. [2020-09-25 13:26:14,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:14,215 INFO L93 Difference]: Finished difference Result 1819 states and 2309 transitions. [2020-09-25 13:26:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:14,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-09-25 13:26:14,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:14,223 INFO L225 Difference]: With dead ends: 1819 [2020-09-25 13:26:14,223 INFO L226 Difference]: Without dead ends: 1257 [2020-09-25 13:26:14,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:14,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2020-09-25 13:26:14,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1255. [2020-09-25 13:26:14,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-09-25 13:26:14,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1563 transitions. [2020-09-25 13:26:14,263 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1563 transitions. Word has length 210 [2020-09-25 13:26:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:14,264 INFO L479 AbstractCegarLoop]: Abstraction has 1255 states and 1563 transitions. [2020-09-25 13:26:14,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:14,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1563 transitions. [2020-09-25 13:26:14,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 13:26:14,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:14,268 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:14,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 13:26:14,269 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:14,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1924666477, now seen corresponding path program 1 times [2020-09-25 13:26:14,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:14,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704033097] [2020-09-25 13:26:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:14,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:15,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:15,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 13:26:15,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:15,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 773 [2020-09-25 13:26:15,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:15,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:15,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:15,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 13:26:15,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 13:26:15,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:15,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:15,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:15,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:15,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:15,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:15,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:15,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:15,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:15,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:26:15,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704033097] [2020-09-25 13:26:15,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:15,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:26:15,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843174979] [2020-09-25 13:26:15,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:26:15,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:15,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:26:15,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:26:15,197 INFO L87 Difference]: Start difference. First operand 1255 states and 1563 transitions. Second operand 4 states. [2020-09-25 13:26:15,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:15,654 INFO L93 Difference]: Finished difference Result 3765 states and 4795 transitions. [2020-09-25 13:26:15,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:26:15,655 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 213 [2020-09-25 13:26:15,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:15,668 INFO L225 Difference]: With dead ends: 3765 [2020-09-25 13:26:15,668 INFO L226 Difference]: Without dead ends: 2621 [2020-09-25 13:26:15,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:26:15,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2020-09-25 13:26:15,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 1253. [2020-09-25 13:26:15,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2020-09-25 13:26:15,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1561 transitions. [2020-09-25 13:26:15,728 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1561 transitions. Word has length 213 [2020-09-25 13:26:15,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:15,729 INFO L479 AbstractCegarLoop]: Abstraction has 1253 states and 1561 transitions. [2020-09-25 13:26:15,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:26:15,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1561 transitions. [2020-09-25 13:26:15,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 13:26:15,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:15,734 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:15,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 13:26:15,734 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:15,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:15,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1074238856, now seen corresponding path program 1 times [2020-09-25 13:26:15,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:15,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647331787] [2020-09-25 13:26:15,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:15,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:15,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:16,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:16,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 13:26:16,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:16,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 13:26:16,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:16,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:16,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:16,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-25 13:26:16,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 13:26:16,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:16,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:16,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:16,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:16,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:16,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:16,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:16,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:16,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:16,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:16,099 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 13:26:16,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647331787] [2020-09-25 13:26:16,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:16,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:16,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058513068] [2020-09-25 13:26:16,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:16,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:16,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:16,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:16,101 INFO L87 Difference]: Start difference. First operand 1253 states and 1561 transitions. Second operand 3 states. [2020-09-25 13:26:16,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:16,302 INFO L93 Difference]: Finished difference Result 2890 states and 3664 transitions. [2020-09-25 13:26:16,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:16,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2020-09-25 13:26:16,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:16,312 INFO L225 Difference]: With dead ends: 2890 [2020-09-25 13:26:16,312 INFO L226 Difference]: Without dead ends: 1792 [2020-09-25 13:26:16,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:16,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2020-09-25 13:26:16,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1790. [2020-09-25 13:26:16,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2020-09-25 13:26:16,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2241 transitions. [2020-09-25 13:26:16,376 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2241 transitions. Word has length 230 [2020-09-25 13:26:16,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:16,377 INFO L479 AbstractCegarLoop]: Abstraction has 1790 states and 2241 transitions. [2020-09-25 13:26:16,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2241 transitions. [2020-09-25 13:26:16,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 13:26:16,381 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:16,382 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:16,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 13:26:16,382 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:16,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:16,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1348977484, now seen corresponding path program 1 times [2020-09-25 13:26:16,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:16,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768898265] [2020-09-25 13:26:16,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:16,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:16,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:16,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:16,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:16,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 13:26:16,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:16,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 515 [2020-09-25 13:26:16,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:16,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:16,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:16,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-25 13:26:16,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:26:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:26:16,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:16,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:16,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:16,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:16,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:16,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:16,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:16,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:16,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:17,006 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 13:26:17,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768898265] [2020-09-25 13:26:17,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:17,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:17,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677250026] [2020-09-25 13:26:17,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:17,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:17,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:17,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:17,008 INFO L87 Difference]: Start difference. First operand 1790 states and 2241 transitions. Second operand 3 states. [2020-09-25 13:26:17,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:17,249 INFO L93 Difference]: Finished difference Result 3638 states and 4629 transitions. [2020-09-25 13:26:17,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:17,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-25 13:26:17,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:17,260 INFO L225 Difference]: With dead ends: 3638 [2020-09-25 13:26:17,260 INFO L226 Difference]: Without dead ends: 2003 [2020-09-25 13:26:17,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:17,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2020-09-25 13:26:17,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1934. [2020-09-25 13:26:17,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2020-09-25 13:26:17,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 2409 transitions. [2020-09-25 13:26:17,329 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 2409 transitions. Word has length 232 [2020-09-25 13:26:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:17,330 INFO L479 AbstractCegarLoop]: Abstraction has 1934 states and 2409 transitions. [2020-09-25 13:26:17,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 2409 transitions. [2020-09-25 13:26:17,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 13:26:17,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:17,335 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:17,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 13:26:17,335 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:17,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:17,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1328973908, now seen corresponding path program 1 times [2020-09-25 13:26:17,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:17,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907877629] [2020-09-25 13:26:17,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:17,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:17,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:17,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:17,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:18,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:18,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 13:26:18,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:26:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-09-25 13:26:18,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:18,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 13:26:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:26:18,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:18,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:18,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:18,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:18,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:18,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:18,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:18,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:18,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:18,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:18,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:18,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:18,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:18,171 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 13:26:18,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907877629] [2020-09-25 13:26:18,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:18,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:18,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160881976] [2020-09-25 13:26:18,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:18,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:18,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:18,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:18,173 INFO L87 Difference]: Start difference. First operand 1934 states and 2409 transitions. Second operand 3 states. [2020-09-25 13:26:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:18,278 INFO L93 Difference]: Finished difference Result 3185 states and 3992 transitions. [2020-09-25 13:26:18,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:18,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-25 13:26:18,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:18,286 INFO L225 Difference]: With dead ends: 3185 [2020-09-25 13:26:18,286 INFO L226 Difference]: Without dead ends: 1406 [2020-09-25 13:26:18,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:18,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2020-09-25 13:26:18,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1406. [2020-09-25 13:26:18,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1406 states. [2020-09-25 13:26:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1741 transitions. [2020-09-25 13:26:18,335 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1741 transitions. Word has length 232 [2020-09-25 13:26:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:18,336 INFO L479 AbstractCegarLoop]: Abstraction has 1406 states and 1741 transitions. [2020-09-25 13:26:18,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1741 transitions. [2020-09-25 13:26:18,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-09-25 13:26:18,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:18,340 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:18,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 13:26:18,341 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:18,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:18,341 INFO L82 PathProgramCache]: Analyzing trace with hash 666721407, now seen corresponding path program 1 times [2020-09-25 13:26:18,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:18,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601006718] [2020-09-25 13:26:18,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:18,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:18,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:18,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:18,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:18,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 13:26:18,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:18,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-25 13:26:18,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:18,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 13:26:18,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:26:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:18,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:18,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:18,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:18,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:18,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:18,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:18,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 13:26:18,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601006718] [2020-09-25 13:26:18,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:18,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:18,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548632802] [2020-09-25 13:26:18,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:18,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:18,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:18,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:18,703 INFO L87 Difference]: Start difference. First operand 1406 states and 1741 transitions. Second operand 3 states. [2020-09-25 13:26:18,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:18,949 INFO L93 Difference]: Finished difference Result 2971 states and 3726 transitions. [2020-09-25 13:26:18,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:18,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-09-25 13:26:18,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:18,958 INFO L225 Difference]: With dead ends: 2971 [2020-09-25 13:26:18,958 INFO L226 Difference]: Without dead ends: 1680 [2020-09-25 13:26:18,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:18,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2020-09-25 13:26:19,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1468. [2020-09-25 13:26:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1468 states. [2020-09-25 13:26:19,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1819 transitions. [2020-09-25 13:26:19,012 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1819 transitions. Word has length 233 [2020-09-25 13:26:19,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:19,013 INFO L479 AbstractCegarLoop]: Abstraction has 1468 states and 1819 transitions. [2020-09-25 13:26:19,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:19,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1819 transitions. [2020-09-25 13:26:19,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-25 13:26:19,017 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:19,017 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:19,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 13:26:19,017 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:19,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:19,018 INFO L82 PathProgramCache]: Analyzing trace with hash 400073983, now seen corresponding path program 1 times [2020-09-25 13:26:19,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:19,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977083649] [2020-09-25 13:26:19,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:19,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:19,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:19,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:19,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 13:26:19,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:19,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-09-25 13:26:19,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:19,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 13:26:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 13:26:19,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:19,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:19,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:19,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:19,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:19,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:19,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:19,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:19,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:19,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:19,726 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 13:26:19,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977083649] [2020-09-25 13:26:19,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:19,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:26:19,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647351422] [2020-09-25 13:26:19,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:26:19,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:19,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:26:19,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:26:19,730 INFO L87 Difference]: Start difference. First operand 1468 states and 1819 transitions. Second operand 4 states. [2020-09-25 13:26:20,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:20,177 INFO L93 Difference]: Finished difference Result 4394 states and 5523 transitions. [2020-09-25 13:26:20,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:26:20,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 241 [2020-09-25 13:26:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:20,191 INFO L225 Difference]: With dead ends: 4394 [2020-09-25 13:26:20,191 INFO L226 Difference]: Without dead ends: 3081 [2020-09-25 13:26:20,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:26:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2020-09-25 13:26:20,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 1570. [2020-09-25 13:26:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1570 states. [2020-09-25 13:26:20,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1933 transitions. [2020-09-25 13:26:20,250 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1933 transitions. Word has length 241 [2020-09-25 13:26:20,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:20,250 INFO L479 AbstractCegarLoop]: Abstraction has 1570 states and 1933 transitions. [2020-09-25 13:26:20,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:26:20,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1933 transitions. [2020-09-25 13:26:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-25 13:26:20,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:20,254 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:20,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 13:26:20,255 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:20,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:20,255 INFO L82 PathProgramCache]: Analyzing trace with hash -255766369, now seen corresponding path program 1 times [2020-09-25 13:26:20,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:20,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13661984] [2020-09-25 13:26:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:20,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:20,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:20,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:20,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:20,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 13:26:20,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:20,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 470 [2020-09-25 13:26:20,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:20,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 13:26:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 13:26:20,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:26:20,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:20,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:20,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:20,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:20,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:20,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:20,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:20,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:20,832 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 13:26:20,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13661984] [2020-09-25 13:26:20,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:20,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:26:20,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222424341] [2020-09-25 13:26:20,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:26:20,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:20,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:26:20,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:26:20,835 INFO L87 Difference]: Start difference. First operand 1570 states and 1933 transitions. Second operand 4 states. [2020-09-25 13:26:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:21,260 INFO L93 Difference]: Finished difference Result 4474 states and 5573 transitions. [2020-09-25 13:26:21,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:26:21,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 241 [2020-09-25 13:26:21,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:21,273 INFO L225 Difference]: With dead ends: 4474 [2020-09-25 13:26:21,274 INFO L226 Difference]: Without dead ends: 3059 [2020-09-25 13:26:21,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:26:21,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2020-09-25 13:26:21,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 1576. [2020-09-25 13:26:21,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2020-09-25 13:26:21,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1935 transitions. [2020-09-25 13:26:21,405 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1935 transitions. Word has length 241 [2020-09-25 13:26:21,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:21,406 INFO L479 AbstractCegarLoop]: Abstraction has 1576 states and 1935 transitions. [2020-09-25 13:26:21,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:26:21,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1935 transitions. [2020-09-25 13:26:21,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-09-25 13:26:21,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:21,411 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:21,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 13:26:21,412 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:21,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:21,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1099402533, now seen corresponding path program 1 times [2020-09-25 13:26:21,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:21,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53519307] [2020-09-25 13:26:21,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:21,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:21,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:21,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:21,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:21,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-25 13:26:21,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:21,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 13:26:21,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:21,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 13:26:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:26:21,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:21,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:21,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:21,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:21,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:21,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:21,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:21,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:21,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:21,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:21,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:21,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:21,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:21,810 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 13:26:21,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53519307] [2020-09-25 13:26:21,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:21,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:21,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884831047] [2020-09-25 13:26:21,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:21,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:21,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:21,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:21,814 INFO L87 Difference]: Start difference. First operand 1576 states and 1935 transitions. Second operand 3 states. [2020-09-25 13:26:22,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:22,066 INFO L93 Difference]: Finished difference Result 3391 states and 4207 transitions. [2020-09-25 13:26:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:22,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2020-09-25 13:26:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:22,079 INFO L225 Difference]: With dead ends: 3391 [2020-09-25 13:26:22,079 INFO L226 Difference]: Without dead ends: 1934 [2020-09-25 13:26:22,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2020-09-25 13:26:22,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1642. [2020-09-25 13:26:22,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2020-09-25 13:26:22,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2021 transitions. [2020-09-25 13:26:22,149 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2021 transitions. Word has length 263 [2020-09-25 13:26:22,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:22,150 INFO L479 AbstractCegarLoop]: Abstraction has 1642 states and 2021 transitions. [2020-09-25 13:26:22,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:22,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2021 transitions. [2020-09-25 13:26:22,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-25 13:26:22,156 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:22,156 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:22,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 13:26:22,157 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:22,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:22,158 INFO L82 PathProgramCache]: Analyzing trace with hash -962704645, now seen corresponding path program 1 times [2020-09-25 13:26:22,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:22,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368152939] [2020-09-25 13:26:22,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:22,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:22,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:22,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:22,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:23,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:23,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-25 13:26:23,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:26:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 867 [2020-09-25 13:26:23,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:23,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:23,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:23,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 13:26:23,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 13:26:23,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:26:23,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:23,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:23,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:23,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:23,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:23,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:26:23,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:23,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:23,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:23,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:23,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:23,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:26:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 13:26:23,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368152939] [2020-09-25 13:26:23,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:23,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:26:23,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479894509] [2020-09-25 13:26:23,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:26:23,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:23,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:26:23,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:26:23,226 INFO L87 Difference]: Start difference. First operand 1642 states and 2021 transitions. Second operand 4 states. [2020-09-25 13:26:23,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:23,598 INFO L93 Difference]: Finished difference Result 4782 states and 5959 transitions. [2020-09-25 13:26:23,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:26:23,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2020-09-25 13:26:23,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:23,626 INFO L225 Difference]: With dead ends: 4782 [2020-09-25 13:26:23,629 INFO L226 Difference]: Without dead ends: 3295 [2020-09-25 13:26:23,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:26:23,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2020-09-25 13:26:23,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 1648. [2020-09-25 13:26:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1648 states. [2020-09-25 13:26:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2019 transitions. [2020-09-25 13:26:23,694 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2019 transitions. Word has length 271 [2020-09-25 13:26:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:23,694 INFO L479 AbstractCegarLoop]: Abstraction has 1648 states and 2019 transitions. [2020-09-25 13:26:23,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:26:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2019 transitions. [2020-09-25 13:26:23,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-09-25 13:26:23,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:23,698 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:23,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 13:26:23,698 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:23,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:23,699 INFO L82 PathProgramCache]: Analyzing trace with hash 576887043, now seen corresponding path program 1 times [2020-09-25 13:26:23,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:23,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973451825] [2020-09-25 13:26:23,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:23,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:23,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:24,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:24,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-09-25 13:26:24,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:24,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 657 [2020-09-25 13:26:24,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:24,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:24,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:24,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-09-25 13:26:24,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:26:24,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:26:24,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:24,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:24,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:24,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:24,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:24,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:24,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:24,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:24,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:24,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:24,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:24,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 13:26:24,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973451825] [2020-09-25 13:26:24,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:24,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:26:24,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137690873] [2020-09-25 13:26:24,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:26:24,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:24,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:26:24,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:26:24,499 INFO L87 Difference]: Start difference. First operand 1648 states and 2019 transitions. Second operand 4 states. [2020-09-25 13:26:24,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:24,978 INFO L93 Difference]: Finished difference Result 4734 states and 5899 transitions. [2020-09-25 13:26:24,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:26:24,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 292 [2020-09-25 13:26:24,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:24,992 INFO L225 Difference]: With dead ends: 4734 [2020-09-25 13:26:24,992 INFO L226 Difference]: Without dead ends: 3241 [2020-09-25 13:26:24,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:26:25,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2020-09-25 13:26:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 1660. [2020-09-25 13:26:25,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1660 states. [2020-09-25 13:26:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2027 transitions. [2020-09-25 13:26:25,050 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2027 transitions. Word has length 292 [2020-09-25 13:26:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:25,051 INFO L479 AbstractCegarLoop]: Abstraction has 1660 states and 2027 transitions. [2020-09-25 13:26:25,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:26:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2027 transitions. [2020-09-25 13:26:25,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-09-25 13:26:25,055 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:25,055 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:25,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 13:26:25,056 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:25,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:25,057 INFO L82 PathProgramCache]: Analyzing trace with hash 794458964, now seen corresponding path program 1 times [2020-09-25 13:26:25,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:25,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83284710] [2020-09-25 13:26:25,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:25,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:25,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:25,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:25,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:25,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:26,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:26,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-09-25 13:26:26,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:26:26,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1109 [2020-09-25 13:26:26,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:26,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-09-25 13:26:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:26:26,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:26,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:26,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:26,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:26,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:26,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:26,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:26,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:26,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-09-25 13:26:26,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83284710] [2020-09-25 13:26:26,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:26,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:26,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851123334] [2020-09-25 13:26:26,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:26,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:26,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:26,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:26,315 INFO L87 Difference]: Start difference. First operand 1660 states and 2027 transitions. Second operand 3 states. [2020-09-25 13:26:26,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:26,552 INFO L93 Difference]: Finished difference Result 3581 states and 4407 transitions. [2020-09-25 13:26:26,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:26,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2020-09-25 13:26:26,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:26,557 INFO L225 Difference]: With dead ends: 3581 [2020-09-25 13:26:26,557 INFO L226 Difference]: Without dead ends: 2044 [2020-09-25 13:26:26,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:26,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2020-09-25 13:26:26,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1730. [2020-09-25 13:26:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1730 states. [2020-09-25 13:26:26,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2121 transitions. [2020-09-25 13:26:26,621 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2121 transitions. Word has length 299 [2020-09-25 13:26:26,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:26,621 INFO L479 AbstractCegarLoop]: Abstraction has 1730 states and 2121 transitions. [2020-09-25 13:26:26,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:26,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2121 transitions. [2020-09-25 13:26:26,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-09-25 13:26:26,625 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:26,625 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:26,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 13:26:26,626 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:26,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:26,626 INFO L82 PathProgramCache]: Analyzing trace with hash 893866712, now seen corresponding path program 1 times [2020-09-25 13:26:26,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:26,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120864071] [2020-09-25 13:26:26,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:26,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:26,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:27,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:27,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:27,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-25 13:26:27,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:27,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-09-25 13:26:27,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:27,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:27,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:26:27,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-09-25 13:26:27,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 13:26:27,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:26:27,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:27,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:27,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:27,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:27,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:27,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:27,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:27,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:27,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:27,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:27,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:27,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:27,362 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-25 13:26:27,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120864071] [2020-09-25 13:26:27,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:27,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:26:27,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803669230] [2020-09-25 13:26:27,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:26:27,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:27,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:26:27,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:26:27,364 INFO L87 Difference]: Start difference. First operand 1730 states and 2121 transitions. Second operand 4 states. [2020-09-25 13:26:27,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:27,619 INFO L93 Difference]: Finished difference Result 3809 states and 4692 transitions. [2020-09-25 13:26:27,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:26:27,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 302 [2020-09-25 13:26:27,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:27,624 INFO L225 Difference]: With dead ends: 3809 [2020-09-25 13:26:27,625 INFO L226 Difference]: Without dead ends: 2234 [2020-09-25 13:26:27,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:26:27,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2020-09-25 13:26:27,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1775. [2020-09-25 13:26:27,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1775 states. [2020-09-25 13:26:27,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2195 transitions. [2020-09-25 13:26:27,680 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2195 transitions. Word has length 302 [2020-09-25 13:26:27,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:27,680 INFO L479 AbstractCegarLoop]: Abstraction has 1775 states and 2195 transitions. [2020-09-25 13:26:27,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:26:27,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2195 transitions. [2020-09-25 13:26:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-09-25 13:26:27,684 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:27,685 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:27,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-25 13:26:27,687 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:27,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:27,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1834011252, now seen corresponding path program 1 times [2020-09-25 13:26:27,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:27,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1172829750] [2020-09-25 13:26:27,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:27,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:27,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:27,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:28,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:28,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:28,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:30,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:30,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-09-25 13:26:30,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:26:30,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3002 [2020-09-25 13:26:30,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:30,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-09-25 13:26:30,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 13:26:30,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:26:30,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:30,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:30,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:30,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:30,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:30,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:30,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:30,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:30,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:30,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-09-25 13:26:30,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1172829750] [2020-09-25 13:26:30,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:30,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:26:30,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230759672] [2020-09-25 13:26:30,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:26:30,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:30,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:26:30,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:26:30,847 INFO L87 Difference]: Start difference. First operand 1775 states and 2195 transitions. Second operand 4 states. [2020-09-25 13:26:31,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:31,209 INFO L93 Difference]: Finished difference Result 5145 states and 6437 transitions. [2020-09-25 13:26:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:26:31,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 307 [2020-09-25 13:26:31,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:31,217 INFO L225 Difference]: With dead ends: 5145 [2020-09-25 13:26:31,217 INFO L226 Difference]: Without dead ends: 3525 [2020-09-25 13:26:31,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:26:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3525 states. [2020-09-25 13:26:31,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3525 to 1781. [2020-09-25 13:26:31,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-09-25 13:26:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2189 transitions. [2020-09-25 13:26:31,276 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2189 transitions. Word has length 307 [2020-09-25 13:26:31,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:31,277 INFO L479 AbstractCegarLoop]: Abstraction has 1781 states and 2189 transitions. [2020-09-25 13:26:31,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:26:31,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2189 transitions. [2020-09-25 13:26:31,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-09-25 13:26:31,281 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:31,282 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:31,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-25 13:26:31,282 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:31,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1459296181, now seen corresponding path program 1 times [2020-09-25 13:26:31,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:31,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034293755] [2020-09-25 13:26:31,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:31,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:31,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:31,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:31,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:31,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-09-25 13:26:31,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:31,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 653 [2020-09-25 13:26:31,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:31,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 285 [2020-09-25 13:26:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 13:26:31,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:32,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:32,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:32,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:32,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:32,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:32,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:32,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:32,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:32,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 21 [2020-09-25 13:26:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2020-09-25 13:26:32,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034293755] [2020-09-25 13:26:32,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:32,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:32,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039113681] [2020-09-25 13:26:32,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:32,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:32,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:32,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:32,085 INFO L87 Difference]: Start difference. First operand 1781 states and 2189 transitions. Second operand 3 states. [2020-09-25 13:26:32,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:32,170 INFO L93 Difference]: Finished difference Result 4964 states and 6162 transitions. [2020-09-25 13:26:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:32,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2020-09-25 13:26:32,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:32,177 INFO L225 Difference]: With dead ends: 4964 [2020-09-25 13:26:32,178 INFO L226 Difference]: Without dead ends: 3338 [2020-09-25 13:26:32,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:32,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3338 states. [2020-09-25 13:26:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3338 to 3336. [2020-09-25 13:26:32,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3336 states. [2020-09-25 13:26:32,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4127 transitions. [2020-09-25 13:26:32,265 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4127 transitions. Word has length 328 [2020-09-25 13:26:32,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:32,266 INFO L479 AbstractCegarLoop]: Abstraction has 3336 states and 4127 transitions. [2020-09-25 13:26:32,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:32,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4127 transitions. [2020-09-25 13:26:32,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-09-25 13:26:32,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:32,272 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:32,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-25 13:26:32,273 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:32,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:32,273 INFO L82 PathProgramCache]: Analyzing trace with hash 74053825, now seen corresponding path program 1 times [2020-09-25 13:26:32,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:32,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961363629] [2020-09-25 13:26:32,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:32,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:32,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:32,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:32,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:32,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:33,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:33,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-09-25 13:26:33,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:26:33,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1085 [2020-09-25 13:26:33,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:33,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:33,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:33,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 224 [2020-09-25 13:26:33,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 13:26:33,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:33,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:33,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:33,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:33,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:33,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:33,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:33,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:33,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:33,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-25 13:26:33,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961363629] [2020-09-25 13:26:33,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:33,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:33,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448972828] [2020-09-25 13:26:33,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:33,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:33,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:33,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:33,599 INFO L87 Difference]: Start difference. First operand 3336 states and 4127 transitions. Second operand 3 states. [2020-09-25 13:26:33,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:33,889 INFO L93 Difference]: Finished difference Result 8031 states and 10012 transitions. [2020-09-25 13:26:33,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:33,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 329 [2020-09-25 13:26:33,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:33,901 INFO L225 Difference]: With dead ends: 8031 [2020-09-25 13:26:33,901 INFO L226 Difference]: Without dead ends: 4850 [2020-09-25 13:26:33,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4850 states. [2020-09-25 13:26:34,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4850 to 4848. [2020-09-25 13:26:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4848 states. [2020-09-25 13:26:34,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4848 states to 4848 states and 6007 transitions. [2020-09-25 13:26:34,034 INFO L78 Accepts]: Start accepts. Automaton has 4848 states and 6007 transitions. Word has length 329 [2020-09-25 13:26:34,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:34,035 INFO L479 AbstractCegarLoop]: Abstraction has 4848 states and 6007 transitions. [2020-09-25 13:26:34,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4848 states and 6007 transitions. [2020-09-25 13:26:34,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-09-25 13:26:34,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:34,044 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:34,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-25 13:26:34,044 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:34,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:34,045 INFO L82 PathProgramCache]: Analyzing trace with hash 49280603, now seen corresponding path program 1 times [2020-09-25 13:26:34,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:34,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111853466] [2020-09-25 13:26:34,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:34,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:34,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:34,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:34,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-09-25 13:26:34,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:34,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-09-25 13:26:34,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:34,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:34,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:34,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-09-25 13:26:34,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 13:26:34,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:34,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:34,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:34,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:34,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:34,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:34,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:34,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:34,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:34,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:34,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:34,646 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-09-25 13:26:34,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111853466] [2020-09-25 13:26:34,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:34,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:34,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612455254] [2020-09-25 13:26:34,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:34,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:34,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:34,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:34,648 INFO L87 Difference]: Start difference. First operand 4848 states and 6007 transitions. Second operand 3 states. [2020-09-25 13:26:35,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:35,016 INFO L93 Difference]: Finished difference Result 14072 states and 17493 transitions. [2020-09-25 13:26:35,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:35,017 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 331 [2020-09-25 13:26:35,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:35,037 INFO L225 Difference]: With dead ends: 14072 [2020-09-25 13:26:35,037 INFO L226 Difference]: Without dead ends: 9379 [2020-09-25 13:26:35,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:35,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9379 states. [2020-09-25 13:26:35,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9379 to 4842. [2020-09-25 13:26:35,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4842 states. [2020-09-25 13:26:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 5995 transitions. [2020-09-25 13:26:35,287 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 5995 transitions. Word has length 331 [2020-09-25 13:26:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:35,289 INFO L479 AbstractCegarLoop]: Abstraction has 4842 states and 5995 transitions. [2020-09-25 13:26:35,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:35,289 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 5995 transitions. [2020-09-25 13:26:35,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-09-25 13:26:35,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:35,299 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:35,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-09-25 13:26:35,299 INFO L427 AbstractCegarLoop]: === Iteration 25 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:35,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1344072815, now seen corresponding path program 1 times [2020-09-25 13:26:35,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:35,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997893612] [2020-09-25 13:26:35,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:35,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:35,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:35,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:35,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:35,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-09-25 13:26:35,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:35,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-09-25 13:26:35,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:35,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-09-25 13:26:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:26:35,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:36,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:36,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:36,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:36,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:36,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:36,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:36,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:36,087 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-09-25 13:26:36,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997893612] [2020-09-25 13:26:36,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:36,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:36,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013525525] [2020-09-25 13:26:36,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:36,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:36,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:36,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:36,090 INFO L87 Difference]: Start difference. First operand 4842 states and 5995 transitions. Second operand 3 states. [2020-09-25 13:26:36,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:36,369 INFO L93 Difference]: Finished difference Result 11041 states and 13744 transitions. [2020-09-25 13:26:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:36,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 332 [2020-09-25 13:26:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:36,386 INFO L225 Difference]: With dead ends: 11041 [2020-09-25 13:26:36,386 INFO L226 Difference]: Without dead ends: 4070 [2020-09-25 13:26:36,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:36,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4070 states. [2020-09-25 13:26:36,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4070 to 4068. [2020-09-25 13:26:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4068 states. [2020-09-25 13:26:36,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4068 states to 4068 states and 5036 transitions. [2020-09-25 13:26:36,510 INFO L78 Accepts]: Start accepts. Automaton has 4068 states and 5036 transitions. Word has length 332 [2020-09-25 13:26:36,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:36,511 INFO L479 AbstractCegarLoop]: Abstraction has 4068 states and 5036 transitions. [2020-09-25 13:26:36,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:36,511 INFO L276 IsEmpty]: Start isEmpty. Operand 4068 states and 5036 transitions. [2020-09-25 13:26:36,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-09-25 13:26:36,517 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:36,517 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:36,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-09-25 13:26:36,518 INFO L427 AbstractCegarLoop]: === Iteration 26 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:36,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:36,518 INFO L82 PathProgramCache]: Analyzing trace with hash -522042299, now seen corresponding path program 1 times [2020-09-25 13:26:36,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:36,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202949286] [2020-09-25 13:26:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:26:36,558 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:26:36,558 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:26:36,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-09-25 13:26:36,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:26:36 BoogieIcfgContainer [2020-09-25 13:26:36,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:26:36,628 INFO L168 Benchmark]: Toolchain (without parser) took 37617.22 ms. Allocated memory was 142.1 MB in the beginning and 770.7 MB in the end (delta: 628.6 MB). Free memory was 100.7 MB in the beginning and 266.4 MB in the end (delta: -165.7 MB). Peak memory consumption was 462.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:36,629 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 142.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:26:36,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.14 ms. Allocated memory was 142.1 MB in the beginning and 201.9 MB in the end (delta: 59.8 MB). Free memory was 100.0 MB in the beginning and 176.3 MB in the end (delta: -76.3 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:36,631 INFO L168 Benchmark]: Boogie Preprocessor took 71.73 ms. Allocated memory is still 201.9 MB. Free memory was 176.3 MB in the beginning and 173.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:36,635 INFO L168 Benchmark]: RCFGBuilder took 1049.83 ms. Allocated memory is still 201.9 MB. Free memory was 173.1 MB in the beginning and 95.4 MB in the end (delta: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:36,635 INFO L168 Benchmark]: TraceAbstraction took 35901.73 ms. Allocated memory was 201.9 MB in the beginning and 770.7 MB in the end (delta: 568.9 MB). Free memory was 94.7 MB in the beginning and 266.4 MB in the end (delta: -171.7 MB). Peak memory consumption was 397.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:36,637 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 142.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 582.14 ms. Allocated memory was 142.1 MB in the beginning and 201.9 MB in the end (delta: 59.8 MB). Free memory was 100.0 MB in the beginning and 176.3 MB in the end (delta: -76.3 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.73 ms. Allocated memory is still 201.9 MB. Free memory was 176.3 MB in the beginning and 173.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1049.83 ms. Allocated memory is still 201.9 MB. Free memory was 173.1 MB in the beginning and 95.4 MB in the end (delta: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35901.73 ms. Allocated memory was 201.9 MB in the beginning and 770.7 MB in the end (delta: 568.9 MB). Free memory was 94.7 MB in the beginning and 266.4 MB in the end (delta: -171.7 MB). Peak memory consumption was 397.1 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, 471 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.7s, OverallIterations: 26, TraceHistogramMax: 6, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15928 SDtfs, 11060 SDslu, 17371 SDs, 0 SdLazy, 3920 SolverSat, 657 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4848occurred in iteration=23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 25 MinimizatonAttempts, 16531 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 23.5s InterpolantComputationTime, 6512 NumberOfCodeBlocks, 6512 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 6154 ConstructedInterpolants, 0 QuantifiedInterpolants, 2181991 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 2287/2287 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...