/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=0.5 --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 14:33:36,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:33:36,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:33:36,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:33:36,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:33:36,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:33:36,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:33:36,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:33:36,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:33:36,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:33:36,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:33:36,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:33:36,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:33:36,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:33:36,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:33:36,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:33:36,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:33:36,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:33:36,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:33:36,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:33:36,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:33:36,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:33:36,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:33:36,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:33:36,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:33:36,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:33:36,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:33:36,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:33:36,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:33:36,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:33:36,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:33:36,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:33:36,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:33:36,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:33:36,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:33:36,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:33:36,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:33:36,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:33:36,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:33:36,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:33:36,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:33:36,420 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 14:33:36,447 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:33:36,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:33:36,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:33:36,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:33:36,449 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:33:36,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:33:36,450 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:33:36,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:33:36,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:33:36,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:33:36,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:33:36,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:33:36,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:33:36,451 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:33:36,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:33:36,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:33:36,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:33:36,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:33:36,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:33:36,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:33:36,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:33:36,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:33:36,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:33:36,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:33:36,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:33:36,454 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:33:36,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:33:36,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:33:36,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:33:36,455 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:33:36,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:33:36,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:33:36,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:33:36,941 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:33:36,942 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:33:36,943 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_12.cil.c [2020-09-25 14:33:37,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7a68e21c/5862100ad1c74cd4a84809db255fa0a5/FLAG764d7d60b [2020-09-25 14:33:37,636 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:33:37,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_12.cil.c [2020-09-25 14:33:37,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7a68e21c/5862100ad1c74cd4a84809db255fa0a5/FLAG764d7d60b [2020-09-25 14:33:37,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7a68e21c/5862100ad1c74cd4a84809db255fa0a5 [2020-09-25 14:33:37,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:33:37,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:33:37,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:33:37,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:33:37,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:33:37,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:33:37" (1/1) ... [2020-09-25 14:33:37,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6017e0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:37, skipping insertion in model container [2020-09-25 14:33:37,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:33:37" (1/1) ... [2020-09-25 14:33:37,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:33:38,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:33:38,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:33:38,504 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:33:38,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:33:38,690 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:33:38,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:38 WrapperNode [2020-09-25 14:33:38,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:33:38,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:33:38,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:33:38,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:33:38,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:38" (1/1) ... [2020-09-25 14:33:38,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:38" (1/1) ... [2020-09-25 14:33:38,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:38" (1/1) ... [2020-09-25 14:33:38,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:38" (1/1) ... [2020-09-25 14:33:38,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:38" (1/1) ... [2020-09-25 14:33:38,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:38" (1/1) ... [2020-09-25 14:33:38,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:38" (1/1) ... [2020-09-25 14:33:38,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:33:38,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:33:38,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:33:38,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:33:38,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:38" (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 14:33:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:33:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:33:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 14:33:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:33:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:33:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 14:33:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:33:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 14:33:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 14:33:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 14:33:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:33:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:33:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:33:39,173 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 14:33:39,938 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 14:33:39,939 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 14:33:39,957 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:33:39,957 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 14:33:39,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:33:39 BoogieIcfgContainer [2020-09-25 14:33:39,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:33:39,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:33:39,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:33:39,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:33:39,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:33:37" (1/3) ... [2020-09-25 14:33:39,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c325ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:33:39, skipping insertion in model container [2020-09-25 14:33:39,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:33:38" (2/3) ... [2020-09-25 14:33:39,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c325ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:33:39, skipping insertion in model container [2020-09-25 14:33:39,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:33:39" (3/3) ... [2020-09-25 14:33:39,977 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_12.cil.c [2020-09-25 14:33:39,990 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:33:40,002 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:33:40,025 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:33:40,078 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:33:40,079 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:33:40,079 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:33:40,079 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:33:40,079 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:33:40,079 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:33:40,079 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:33:40,080 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:33:40,112 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states. [2020-09-25 14:33:40,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 14:33:40,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:40,134 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 14:33:40,135 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:40,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:40,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1996743066, now seen corresponding path program 1 times [2020-09-25 14:33:40,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:40,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669841691] [2020-09-25 14:33:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:40,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:40,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:40,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:41,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:41,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:41,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-25 14:33:41,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:33:41,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1542 [2020-09-25 14:33:41,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:41,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:33:41,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 14:33:41,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-25 14:33:41,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:33:42,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:42,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:42,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:42,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:42,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:42,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:33:42,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:42,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:42,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:42,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:42,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:42,158 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 14:33:42,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669841691] [2020-09-25 14:33:42,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:42,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:33:42,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737342481] [2020-09-25 14:33:42,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:33:42,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:42,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:33:42,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:33:42,194 INFO L87 Difference]: Start difference. First operand 471 states. Second operand 6 states. [2020-09-25 14:33:42,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:42,674 INFO L93 Difference]: Finished difference Result 845 states and 1110 transitions. [2020-09-25 14:33:42,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:33:42,677 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-09-25 14:33:42,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:42,721 INFO L225 Difference]: With dead ends: 845 [2020-09-25 14:33:42,721 INFO L226 Difference]: Without dead ends: 472 [2020-09-25 14:33:42,733 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 14:33:42,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-09-25 14:33:42,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 461. [2020-09-25 14:33:42,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-09-25 14:33:42,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 560 transitions. [2020-09-25 14:33:42,873 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 560 transitions. Word has length 161 [2020-09-25 14:33:42,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:42,877 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 560 transitions. [2020-09-25 14:33:42,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:33:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 560 transitions. [2020-09-25 14:33:42,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 14:33:42,886 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:42,886 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 14:33:42,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:33:42,890 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:42,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:42,891 INFO L82 PathProgramCache]: Analyzing trace with hash 508400321, now seen corresponding path program 1 times [2020-09-25 14:33:42,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:42,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058842804] [2020-09-25 14:33:42,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:42,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:43,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:43,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:43,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:44,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:44,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 14:33:44,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:33:44,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1307 [2020-09-25 14:33:44,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:44,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:44,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:33:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 14:33:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-25 14:33:44,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:33:44,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:44,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:44,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:44,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:44,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:44,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:33:44,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:44,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:44,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:44,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:44,483 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 14:33:44,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058842804] [2020-09-25 14:33:44,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:44,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:33:44,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666662888] [2020-09-25 14:33:44,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:33:44,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:44,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:33:44,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:33:44,489 INFO L87 Difference]: Start difference. First operand 461 states and 560 transitions. Second operand 7 states. [2020-09-25 14:33:44,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:44,899 INFO L93 Difference]: Finished difference Result 941 states and 1195 transitions. [2020-09-25 14:33:44,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:33:44,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-09-25 14:33:44,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:44,904 INFO L225 Difference]: With dead ends: 941 [2020-09-25 14:33:44,904 INFO L226 Difference]: Without dead ends: 607 [2020-09-25 14:33:44,906 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 14:33:44,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-09-25 14:33:44,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 570. [2020-09-25 14:33:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-09-25 14:33:44,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 691 transitions. [2020-09-25 14:33:44,925 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 691 transitions. Word has length 170 [2020-09-25 14:33:44,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:44,925 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 691 transitions. [2020-09-25 14:33:44,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:33:44,926 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 691 transitions. [2020-09-25 14:33:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 14:33:44,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:44,929 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 14:33:44,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:33:44,930 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:44,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:44,930 INFO L82 PathProgramCache]: Analyzing trace with hash -2044458217, now seen corresponding path program 1 times [2020-09-25 14:33:44,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:44,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81869020] [2020-09-25 14:33:44,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:44,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:45,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:45,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:45,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:45,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:45,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:45,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 14:33:45,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:33:45,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 872 [2020-09-25 14:33:45,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:45,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:33:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 14:33:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 14:33:45,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:45,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:45,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:45,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:45,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:45,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:45,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:33:45,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:45,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:45,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:45,911 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 14:33:45,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81869020] [2020-09-25 14:33:45,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:45,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:33:45,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077084864] [2020-09-25 14:33:45,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:33:45,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:45,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:33:45,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:33:45,915 INFO L87 Difference]: Start difference. First operand 570 states and 691 transitions. Second operand 3 states. [2020-09-25 14:33:46,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:46,176 INFO L93 Difference]: Finished difference Result 1096 states and 1381 transitions. [2020-09-25 14:33:46,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:33:46,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2020-09-25 14:33:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:46,181 INFO L225 Difference]: With dead ends: 1096 [2020-09-25 14:33:46,181 INFO L226 Difference]: Without dead ends: 640 [2020-09-25 14:33:46,182 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 14:33:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-09-25 14:33:46,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 622. [2020-09-25 14:33:46,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-09-25 14:33:46,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 766 transitions. [2020-09-25 14:33:46,200 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 766 transitions. Word has length 186 [2020-09-25 14:33:46,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:46,201 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 766 transitions. [2020-09-25 14:33:46,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:33:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 766 transitions. [2020-09-25 14:33:46,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 14:33:46,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:46,204 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] [2020-09-25 14:33:46,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:33:46,205 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:46,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:46,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1557856118, now seen corresponding path program 1 times [2020-09-25 14:33:46,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:46,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832545733] [2020-09-25 14:33:46,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:46,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:46,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:46,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:46,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:46,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:46,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:46,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:47,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:47,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:47,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 14:33:47,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:33:47,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1686 [2020-09-25 14:33:47,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:47,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:47,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:33:47,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 14:33:47,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 14:33:47,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:47,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:47,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:47,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:47,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:47,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:47,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:33:47,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:47,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:47,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:47,986 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 14:33:47,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832545733] [2020-09-25 14:33:47,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:47,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:33:47,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433079379] [2020-09-25 14:33:47,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:33:47,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:47,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:33:47,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:33:47,989 INFO L87 Difference]: Start difference. First operand 622 states and 766 transitions. Second operand 3 states. [2020-09-25 14:33:48,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:48,087 INFO L93 Difference]: Finished difference Result 1121 states and 1406 transitions. [2020-09-25 14:33:48,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:33:48,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-09-25 14:33:48,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:48,092 INFO L225 Difference]: With dead ends: 1121 [2020-09-25 14:33:48,092 INFO L226 Difference]: Without dead ends: 638 [2020-09-25 14:33:48,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:33:48,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2020-09-25 14:33:48,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2020-09-25 14:33:48,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 638 states. [2020-09-25 14:33:48,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 782 transitions. [2020-09-25 14:33:48,113 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 782 transitions. Word has length 192 [2020-09-25 14:33:48,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:48,114 INFO L479 AbstractCegarLoop]: Abstraction has 638 states and 782 transitions. [2020-09-25 14:33:48,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:33:48,114 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 782 transitions. [2020-09-25 14:33:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 14:33:48,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:48,117 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 14:33:48,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:33:48,118 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:48,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:48,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1925663772, now seen corresponding path program 1 times [2020-09-25 14:33:48,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:48,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017870564] [2020-09-25 14:33:48,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:48,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:48,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:48,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:48,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:48,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:49,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:49,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:49,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:49,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 14:33:49,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:33:49,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1243 [2020-09-25 14:33:49,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:49,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:33:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 14:33:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:33:49,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:49,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:49,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:49,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:49,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:49,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:49,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:33:49,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:49,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:49,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:49,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:49,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:49,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:49,466 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 14:33:49,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017870564] [2020-09-25 14:33:49,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:49,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:33:49,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506801964] [2020-09-25 14:33:49,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:33:49,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:49,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:33:49,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:33:49,469 INFO L87 Difference]: Start difference. First operand 638 states and 782 transitions. Second operand 3 states. [2020-09-25 14:33:49,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:49,711 INFO L93 Difference]: Finished difference Result 1252 states and 1600 transitions. [2020-09-25 14:33:49,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:33:49,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2020-09-25 14:33:49,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:49,717 INFO L225 Difference]: With dead ends: 1252 [2020-09-25 14:33:49,718 INFO L226 Difference]: Without dead ends: 747 [2020-09-25 14:33:49,719 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 14:33:49,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-09-25 14:33:49,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 706. [2020-09-25 14:33:49,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-25 14:33:49,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 872 transitions. [2020-09-25 14:33:49,748 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 872 transitions. Word has length 193 [2020-09-25 14:33:49,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:49,749 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 872 transitions. [2020-09-25 14:33:49,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:33:49,749 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 872 transitions. [2020-09-25 14:33:49,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 14:33:49,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:49,752 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 14:33:49,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:33:49,753 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:49,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:49,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1436054601, now seen corresponding path program 1 times [2020-09-25 14:33:49,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:49,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215542405] [2020-09-25 14:33:49,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:49,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:49,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:49,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:50,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:51,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:51,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-25 14:33:51,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:33:51,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1237 [2020-09-25 14:33:51,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:51,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:51,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:33:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-25 14:33:51,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 14:33:51,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:51,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:51,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:51,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:51,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:51,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:51,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:33:51,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:51,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:51,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:51,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:51,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:33:51,141 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 14:33:51,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215542405] [2020-09-25 14:33:51,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:51,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:33:51,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46671193] [2020-09-25 14:33:51,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:33:51,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:51,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:33:51,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:33:51,146 INFO L87 Difference]: Start difference. First operand 706 states and 872 transitions. Second operand 4 states. [2020-09-25 14:33:51,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:51,465 INFO L93 Difference]: Finished difference Result 1323 states and 1661 transitions. [2020-09-25 14:33:51,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:33:51,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-09-25 14:33:51,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:51,472 INFO L225 Difference]: With dead ends: 1323 [2020-09-25 14:33:51,473 INFO L226 Difference]: Without dead ends: 772 [2020-09-25 14:33:51,475 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 14:33:51,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2020-09-25 14:33:51,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 695. [2020-09-25 14:33:51,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-09-25 14:33:51,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 858 transitions. [2020-09-25 14:33:51,504 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 858 transitions. Word has length 195 [2020-09-25 14:33:51,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:51,505 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 858 transitions. [2020-09-25 14:33:51,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:33:51,505 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 858 transitions. [2020-09-25 14:33:51,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 14:33:51,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:51,512 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 14:33:51,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:33:51,512 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:51,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:51,513 INFO L82 PathProgramCache]: Analyzing trace with hash -824296388, now seen corresponding path program 1 times [2020-09-25 14:33:51,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:51,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199498771] [2020-09-25 14:33:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:51,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:51,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:51,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:52,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:52,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:52,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:53,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:53,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:53,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 14:33:53,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:33:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2005 [2020-09-25 14:33:53,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:53,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:33:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-25 14:33:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 14:33:53,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:53,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:53,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:53,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:53,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:53,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:53,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:33:53,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:53,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:53,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:53,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:53,625 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 14:33:53,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199498771] [2020-09-25 14:33:53,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:53,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:33:53,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802082021] [2020-09-25 14:33:53,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:33:53,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:53,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:33:53,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:33:53,629 INFO L87 Difference]: Start difference. First operand 695 states and 858 transitions. Second operand 4 states. [2020-09-25 14:33:53,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:53,887 INFO L93 Difference]: Finished difference Result 1296 states and 1626 transitions. [2020-09-25 14:33:53,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:33:53,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 201 [2020-09-25 14:33:53,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:53,892 INFO L225 Difference]: With dead ends: 1296 [2020-09-25 14:33:53,893 INFO L226 Difference]: Without dead ends: 752 [2020-09-25 14:33:53,897 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 14:33:53,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-09-25 14:33:53,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 722. [2020-09-25 14:33:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2020-09-25 14:33:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 891 transitions. [2020-09-25 14:33:53,928 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 891 transitions. Word has length 201 [2020-09-25 14:33:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:53,948 INFO L479 AbstractCegarLoop]: Abstraction has 722 states and 891 transitions. [2020-09-25 14:33:53,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:33:53,948 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 891 transitions. [2020-09-25 14:33:53,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-25 14:33:53,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:53,952 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 14:33:53,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:33:53,952 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:53,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:53,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1597515948, now seen corresponding path program 1 times [2020-09-25 14:33:53,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:53,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191993318] [2020-09-25 14:33:53,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:54,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:54,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:54,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:54,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:54,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-25 14:33:54,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:33:54,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 604 [2020-09-25 14:33:54,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:54,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:33:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 14:33:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 14:33:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:54,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:54,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:54,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:54,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:54,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:54,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:33:54,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:54,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:54,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:54,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:54,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:54,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:54,692 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 14:33:54,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191993318] [2020-09-25 14:33:54,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:54,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:33:54,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116271083] [2020-09-25 14:33:54,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:33:54,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:54,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:33:54,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:33:54,696 INFO L87 Difference]: Start difference. First operand 722 states and 891 transitions. Second operand 3 states. [2020-09-25 14:33:54,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:54,905 INFO L93 Difference]: Finished difference Result 1834 states and 2333 transitions. [2020-09-25 14:33:54,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:33:54,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-09-25 14:33:54,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:54,913 INFO L225 Difference]: With dead ends: 1834 [2020-09-25 14:33:54,913 INFO L226 Difference]: Without dead ends: 1267 [2020-09-25 14:33:54,915 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 14:33:54,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2020-09-25 14:33:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1265. [2020-09-25 14:33:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-09-25 14:33:54,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1579 transitions. [2020-09-25 14:33:54,950 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1579 transitions. Word has length 210 [2020-09-25 14:33:54,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:54,951 INFO L479 AbstractCegarLoop]: Abstraction has 1265 states and 1579 transitions. [2020-09-25 14:33:54,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:33:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1579 transitions. [2020-09-25 14:33:54,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 14:33:54,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:54,955 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 14:33:54,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:33:54,955 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:54,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1924666477, now seen corresponding path program 1 times [2020-09-25 14:33:54,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:54,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265634255] [2020-09-25 14:33:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:55,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:55,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:55,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:55,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:55,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 14:33:55,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:33:55,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-09-25 14:33:55,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:55,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:55,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:33:55,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 14:33:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:33:55,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:55,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:55,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:55,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:55,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:55,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:55,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:33:55,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:55,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:55,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:55,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:55,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:55,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:55,834 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 14:33:55,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265634255] [2020-09-25 14:33:55,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:55,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:33:55,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628491246] [2020-09-25 14:33:55,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:33:55,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:55,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:33:55,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:33:55,837 INFO L87 Difference]: Start difference. First operand 1265 states and 1579 transitions. Second operand 4 states. [2020-09-25 14:33:56,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:56,213 INFO L93 Difference]: Finished difference Result 3557 states and 4523 transitions. [2020-09-25 14:33:56,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:33:56,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 213 [2020-09-25 14:33:56,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:56,227 INFO L225 Difference]: With dead ends: 3557 [2020-09-25 14:33:56,228 INFO L226 Difference]: Without dead ends: 2447 [2020-09-25 14:33:56,231 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 14:33:56,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2020-09-25 14:33:56,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 1273. [2020-09-25 14:33:56,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1273 states. [2020-09-25 14:33:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1587 transitions. [2020-09-25 14:33:56,282 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1587 transitions. Word has length 213 [2020-09-25 14:33:56,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:56,283 INFO L479 AbstractCegarLoop]: Abstraction has 1273 states and 1587 transitions. [2020-09-25 14:33:56,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:33:56,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1587 transitions. [2020-09-25 14:33:56,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 14:33:56,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:56,288 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 14:33:56,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 14:33:56,289 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:56,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:56,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1074238856, now seen corresponding path program 1 times [2020-09-25 14:33:56,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:56,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158625639] [2020-09-25 14:33:56,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:56,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:56,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:56,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:56,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 14:33:56,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:33:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 14:33:56,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:56,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:33:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-25 14:33:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 14:33:56,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:56,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:56,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:56,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:56,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:56,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:56,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:33:56,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:56,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:56,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:56,674 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 14:33:56,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158625639] [2020-09-25 14:33:56,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:56,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:33:56,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941725039] [2020-09-25 14:33:56,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:33:56,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:56,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:33:56,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:33:56,677 INFO L87 Difference]: Start difference. First operand 1273 states and 1587 transitions. Second operand 3 states. [2020-09-25 14:33:56,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:56,896 INFO L93 Difference]: Finished difference Result 2940 states and 3729 transitions. [2020-09-25 14:33:56,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:33:56,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2020-09-25 14:33:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:56,905 INFO L225 Difference]: With dead ends: 2940 [2020-09-25 14:33:56,905 INFO L226 Difference]: Without dead ends: 1822 [2020-09-25 14:33:56,908 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 14:33:56,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2020-09-25 14:33:56,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1820. [2020-09-25 14:33:56,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1820 states. [2020-09-25 14:33:56,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2280 transitions. [2020-09-25 14:33:56,965 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2280 transitions. Word has length 230 [2020-09-25 14:33:56,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:56,966 INFO L479 AbstractCegarLoop]: Abstraction has 1820 states and 2280 transitions. [2020-09-25 14:33:56,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:33:56,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2280 transitions. [2020-09-25 14:33:56,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 14:33:56,971 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:56,971 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 14:33:56,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 14:33:56,971 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:56,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:56,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1348977484, now seen corresponding path program 1 times [2020-09-25 14:33:56,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:56,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916391090] [2020-09-25 14:33:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:57,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:57,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:57,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:57,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:57,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 14:33:57,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:33:57,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 495 [2020-09-25 14:33:57,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:57,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:33:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-25 14:33:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:33:57,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:57,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:57,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:57,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:57,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:57,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:33:57,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:57,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:57,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:57,575 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 14:33:57,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916391090] [2020-09-25 14:33:57,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:57,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:33:57,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386949969] [2020-09-25 14:33:57,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:33:57,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:57,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:33:57,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:33:57,577 INFO L87 Difference]: Start difference. First operand 1820 states and 2280 transitions. Second operand 3 states. [2020-09-25 14:33:57,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:57,839 INFO L93 Difference]: Finished difference Result 3647 states and 4653 transitions. [2020-09-25 14:33:57,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:33:57,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-25 14:33:57,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:57,849 INFO L225 Difference]: With dead ends: 3647 [2020-09-25 14:33:57,850 INFO L226 Difference]: Without dead ends: 1982 [2020-09-25 14:33:57,854 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 14:33:57,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2020-09-25 14:33:57,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1964. [2020-09-25 14:33:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1964 states. [2020-09-25 14:33:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2451 transitions. [2020-09-25 14:33:57,934 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2451 transitions. Word has length 232 [2020-09-25 14:33:57,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:57,935 INFO L479 AbstractCegarLoop]: Abstraction has 1964 states and 2451 transitions. [2020-09-25 14:33:57,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:33:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2451 transitions. [2020-09-25 14:33:57,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 14:33:57,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:57,943 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 14:33:57,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 14:33:57,944 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:57,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:57,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1328973908, now seen corresponding path program 1 times [2020-09-25 14:33:57,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:57,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668397536] [2020-09-25 14:33:57,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:57,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:58,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:58,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:58,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:58,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:58,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 14:33:58,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:33:58,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 694 [2020-09-25 14:33:58,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:58,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:33:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-25 14:33:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 14:33:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:58,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:58,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:58,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:58,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:58,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:58,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:33:58,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:58,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:58,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:58,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:58,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:58,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:58,741 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 14:33:58,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668397536] [2020-09-25 14:33:58,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:58,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:33:58,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662936808] [2020-09-25 14:33:58,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:33:58,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:58,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:33:58,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:33:58,745 INFO L87 Difference]: Start difference. First operand 1964 states and 2451 transitions. Second operand 3 states. [2020-09-25 14:33:58,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:33:58,957 INFO L93 Difference]: Finished difference Result 3912 states and 4923 transitions. [2020-09-25 14:33:58,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:33:58,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-25 14:33:58,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:33:58,967 INFO L225 Difference]: With dead ends: 3912 [2020-09-25 14:33:58,968 INFO L226 Difference]: Without dead ends: 2103 [2020-09-25 14:33:58,975 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 14:33:58,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2103 states. [2020-09-25 14:33:59,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2103 to 2057. [2020-09-25 14:33:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2020-09-25 14:33:59,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2562 transitions. [2020-09-25 14:33:59,041 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2562 transitions. Word has length 232 [2020-09-25 14:33:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:33:59,042 INFO L479 AbstractCegarLoop]: Abstraction has 2057 states and 2562 transitions. [2020-09-25 14:33:59,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:33:59,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2562 transitions. [2020-09-25 14:33:59,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-25 14:33:59,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:33:59,048 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] [2020-09-25 14:33:59,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 14:33:59,048 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:33:59,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:33:59,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1847120940, now seen corresponding path program 1 times [2020-09-25 14:33:59,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:33:59,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51476261] [2020-09-25 14:33:59,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:33:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:59,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:59,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:59,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:59,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:59,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 14:33:59,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:33:59,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-09-25 14:33:59,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:59,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:33:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 14:33:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:33:59,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:59,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:33:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:33:59,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:33:59,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:33:59,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:33:59,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:33:59,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:33:59,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:33:59,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:33:59,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:33:59,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:33:59,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:33:59,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:33:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 14:33:59,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51476261] [2020-09-25 14:33:59,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:33:59,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:33:59,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174482290] [2020-09-25 14:33:59,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:33:59,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:33:59,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:33:59,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:33:59,969 INFO L87 Difference]: Start difference. First operand 2057 states and 2562 transitions. Second operand 3 states. [2020-09-25 14:34:00,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:00,081 INFO L93 Difference]: Finished difference Result 3389 states and 4245 transitions. [2020-09-25 14:34:00,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:00,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-09-25 14:34:00,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:00,088 INFO L225 Difference]: With dead ends: 3389 [2020-09-25 14:34:00,088 INFO L226 Difference]: Without dead ends: 1487 [2020-09-25 14:34:00,095 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 14:34:00,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2020-09-25 14:34:00,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1487. [2020-09-25 14:34:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1487 states. [2020-09-25 14:34:00,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1841 transitions. [2020-09-25 14:34:00,138 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1841 transitions. Word has length 240 [2020-09-25 14:34:00,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:00,139 INFO L479 AbstractCegarLoop]: Abstraction has 1487 states and 1841 transitions. [2020-09-25 14:34:00,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:00,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1841 transitions. [2020-09-25 14:34:00,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-25 14:34:00,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:00,144 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 14:34:00,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 14:34:00,144 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:00,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash 400073983, now seen corresponding path program 1 times [2020-09-25 14:34:00,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:00,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599201099] [2020-09-25 14:34:00,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:00,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:00,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:00,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:00,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 14:34:00,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:34:00,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-09-25 14:34:00,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:00,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:00,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:34:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 14:34:00,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 14:34:00,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:00,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:00,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:00,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:00,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:00,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:00,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:00,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:00,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:00,838 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 14:34:00,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599201099] [2020-09-25 14:34:00,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:00,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:34:00,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175129987] [2020-09-25 14:34:00,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:34:00,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:00,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:34:00,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:34:00,840 INFO L87 Difference]: Start difference. First operand 1487 states and 1841 transitions. Second operand 4 states. [2020-09-25 14:34:01,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:01,296 INFO L93 Difference]: Finished difference Result 4459 states and 5621 transitions. [2020-09-25 14:34:01,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:34:01,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 241 [2020-09-25 14:34:01,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:01,311 INFO L225 Difference]: With dead ends: 4459 [2020-09-25 14:34:01,312 INFO L226 Difference]: Without dead ends: 3127 [2020-09-25 14:34:01,316 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 14:34:01,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2020-09-25 14:34:01,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 1589. [2020-09-25 14:34:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1589 states. [2020-09-25 14:34:01,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 1955 transitions. [2020-09-25 14:34:01,384 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 1955 transitions. Word has length 241 [2020-09-25 14:34:01,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:01,384 INFO L479 AbstractCegarLoop]: Abstraction has 1589 states and 1955 transitions. [2020-09-25 14:34:01,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:34:01,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 1955 transitions. [2020-09-25 14:34:01,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-25 14:34:01,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:01,390 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 14:34:01,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 14:34:01,391 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:01,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:01,391 INFO L82 PathProgramCache]: Analyzing trace with hash -255766369, now seen corresponding path program 1 times [2020-09-25 14:34:01,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:01,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777962322] [2020-09-25 14:34:01,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 14:34:01,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:34:01,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-09-25 14:34:01,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:34:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 14:34:01,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:34:01,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:01,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:01,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:01,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:01,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:01,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:01,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:01,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:01,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:01,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:01,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:02,013 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 14:34:02,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777962322] [2020-09-25 14:34:02,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:02,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:34:02,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804127910] [2020-09-25 14:34:02,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:34:02,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:02,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:34:02,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:34:02,016 INFO L87 Difference]: Start difference. First operand 1589 states and 1955 transitions. Second operand 4 states. [2020-09-25 14:34:02,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:02,458 INFO L93 Difference]: Finished difference Result 4539 states and 5665 transitions. [2020-09-25 14:34:02,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:34:02,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 241 [2020-09-25 14:34:02,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:02,479 INFO L225 Difference]: With dead ends: 4539 [2020-09-25 14:34:02,480 INFO L226 Difference]: Without dead ends: 3105 [2020-09-25 14:34:02,485 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 14:34:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2020-09-25 14:34:02,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 1595. [2020-09-25 14:34:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1595 states. [2020-09-25 14:34:02,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 1961 transitions. [2020-09-25 14:34:02,564 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 1961 transitions. Word has length 241 [2020-09-25 14:34:02,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:02,565 INFO L479 AbstractCegarLoop]: Abstraction has 1595 states and 1961 transitions. [2020-09-25 14:34:02,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:34:02,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 1961 transitions. [2020-09-25 14:34:02,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-09-25 14:34:02,584 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:02,585 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 14:34:02,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 14:34:02,586 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:02,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:02,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1099402533, now seen corresponding path program 1 times [2020-09-25 14:34:02,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:02,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336730707] [2020-09-25 14:34:02,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:02,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:02,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-25 14:34:02,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:34:02,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-25 14:34:02,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:02,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 14:34:02,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 14:34:02,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:02,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:02,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:02,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:02,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:02,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:02,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:02,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:02,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:02,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:02,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:03,040 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 14:34:03,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336730707] [2020-09-25 14:34:03,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:03,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:03,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679609184] [2020-09-25 14:34:03,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:03,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:03,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:03,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:03,043 INFO L87 Difference]: Start difference. First operand 1595 states and 1961 transitions. Second operand 3 states. [2020-09-25 14:34:03,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:03,237 INFO L93 Difference]: Finished difference Result 3178 states and 3951 transitions. [2020-09-25 14:34:03,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:03,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2020-09-25 14:34:03,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:03,246 INFO L225 Difference]: With dead ends: 3178 [2020-09-25 14:34:03,246 INFO L226 Difference]: Without dead ends: 1738 [2020-09-25 14:34:03,250 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 14:34:03,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2020-09-25 14:34:03,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1661. [2020-09-25 14:34:03,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1661 states. [2020-09-25 14:34:03,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2039 transitions. [2020-09-25 14:34:03,320 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2039 transitions. Word has length 263 [2020-09-25 14:34:03,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:03,321 INFO L479 AbstractCegarLoop]: Abstraction has 1661 states and 2039 transitions. [2020-09-25 14:34:03,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:03,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2039 transitions. [2020-09-25 14:34:03,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-25 14:34:03,327 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:03,328 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 14:34:03,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 14:34:03,328 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:03,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:03,329 INFO L82 PathProgramCache]: Analyzing trace with hash -962704645, now seen corresponding path program 1 times [2020-09-25 14:34:03,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:03,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48969352] [2020-09-25 14:34:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:03,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:03,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:03,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:03,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:04,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:04,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-25 14:34:04,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:34:04,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 850 [2020-09-25 14:34:04,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:04,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:04,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:34:04,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 14:34:04,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 14:34:04,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:04,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:04,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:04,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:04,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:04,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:04,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:04,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:04,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:04,312 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 14:34:04,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48969352] [2020-09-25 14:34:04,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:04,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:34:04,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301067142] [2020-09-25 14:34:04,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:34:04,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:04,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:34:04,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:34:04,314 INFO L87 Difference]: Start difference. First operand 1661 states and 2039 transitions. Second operand 4 states. [2020-09-25 14:34:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:04,800 INFO L93 Difference]: Finished difference Result 4847 states and 6039 transitions. [2020-09-25 14:34:04,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:34:04,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2020-09-25 14:34:04,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:04,816 INFO L225 Difference]: With dead ends: 4847 [2020-09-25 14:34:04,816 INFO L226 Difference]: Without dead ends: 3341 [2020-09-25 14:34:04,821 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 14:34:04,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3341 states. [2020-09-25 14:34:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3341 to 1667. [2020-09-25 14:34:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1667 states. [2020-09-25 14:34:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2045 transitions. [2020-09-25 14:34:04,885 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2045 transitions. Word has length 271 [2020-09-25 14:34:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:04,886 INFO L479 AbstractCegarLoop]: Abstraction has 1667 states and 2045 transitions. [2020-09-25 14:34:04,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:34:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2045 transitions. [2020-09-25 14:34:04,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-09-25 14:34:04,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:04,894 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 14:34:04,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 14:34:04,895 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:04,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:04,895 INFO L82 PathProgramCache]: Analyzing trace with hash 576887043, now seen corresponding path program 1 times [2020-09-25 14:34:04,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:04,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282520233] [2020-09-25 14:34:04,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:04,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:05,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:05,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:05,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 301 [2020-09-25 14:34:05,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:34:05,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 706 [2020-09-25 14:34:05,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:05,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:34:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-09-25 14:34:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:34:05,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:05,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:05,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:05,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:05,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:05,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:05,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:05,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:05,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:05,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:05,743 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 14:34:05,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282520233] [2020-09-25 14:34:05,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:05,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:34:05,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948098844] [2020-09-25 14:34:05,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:34:05,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:05,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:34:05,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:34:05,746 INFO L87 Difference]: Start difference. First operand 1667 states and 2045 transitions. Second operand 4 states. [2020-09-25 14:34:06,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:06,194 INFO L93 Difference]: Finished difference Result 4799 states and 6005 transitions. [2020-09-25 14:34:06,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:34:06,194 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 292 [2020-09-25 14:34:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:06,204 INFO L225 Difference]: With dead ends: 4799 [2020-09-25 14:34:06,204 INFO L226 Difference]: Without dead ends: 3287 [2020-09-25 14:34:06,208 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 14:34:06,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2020-09-25 14:34:06,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 1679. [2020-09-25 14:34:06,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1679 states. [2020-09-25 14:34:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2051 transitions. [2020-09-25 14:34:06,278 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2051 transitions. Word has length 292 [2020-09-25 14:34:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:06,278 INFO L479 AbstractCegarLoop]: Abstraction has 1679 states and 2051 transitions. [2020-09-25 14:34:06,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:34:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2051 transitions. [2020-09-25 14:34:06,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-09-25 14:34:06,283 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:06,283 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 14:34:06,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 14:34:06,284 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:06,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:06,284 INFO L82 PathProgramCache]: Analyzing trace with hash 794458964, now seen corresponding path program 1 times [2020-09-25 14:34:06,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:06,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855421903] [2020-09-25 14:34:06,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:06,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:06,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:06,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:06,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:07,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:07,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:07,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-09-25 14:34:07,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:34:07,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1235 [2020-09-25 14:34:07,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:07,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:07,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:07,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-09-25 14:34:07,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:34:07,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:07,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:07,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:07,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:07,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:07,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:07,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:07,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:07,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:07,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:07,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:07,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:07,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:07,700 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 14:34:07,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855421903] [2020-09-25 14:34:07,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:07,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:07,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662322299] [2020-09-25 14:34:07,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:07,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:07,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:07,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:07,705 INFO L87 Difference]: Start difference. First operand 1679 states and 2051 transitions. Second operand 3 states. [2020-09-25 14:34:07,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:07,949 INFO L93 Difference]: Finished difference Result 3537 states and 4355 transitions. [2020-09-25 14:34:07,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:07,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2020-09-25 14:34:07,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:07,956 INFO L225 Difference]: With dead ends: 3537 [2020-09-25 14:34:07,956 INFO L226 Difference]: Without dead ends: 1981 [2020-09-25 14:34:07,960 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 14:34:07,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2020-09-25 14:34:08,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1749. [2020-09-25 14:34:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1749 states. [2020-09-25 14:34:08,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2145 transitions. [2020-09-25 14:34:08,018 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2145 transitions. Word has length 299 [2020-09-25 14:34:08,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:08,019 INFO L479 AbstractCegarLoop]: Abstraction has 1749 states and 2145 transitions. [2020-09-25 14:34:08,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:08,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2145 transitions. [2020-09-25 14:34:08,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-09-25 14:34:08,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:08,027 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 14:34:08,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 14:34:08,028 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:08,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:08,028 INFO L82 PathProgramCache]: Analyzing trace with hash 893866712, now seen corresponding path program 1 times [2020-09-25 14:34:08,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:08,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090966593] [2020-09-25 14:34:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:08,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:08,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:08,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:08,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:08,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-25 14:34:08,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:34:08,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-09-25 14:34:08,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:08,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:08,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:34:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-09-25 14:34:08,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 14:34:08,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:08,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:08,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:08,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:08,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:08,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:08,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:08,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:08,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:08,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:08,804 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 14:34:08,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090966593] [2020-09-25 14:34:08,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:08,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:34:08,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368772596] [2020-09-25 14:34:08,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:34:08,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:08,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:34:08,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:34:08,806 INFO L87 Difference]: Start difference. First operand 1749 states and 2145 transitions. Second operand 4 states. [2020-09-25 14:34:09,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:09,082 INFO L93 Difference]: Finished difference Result 3852 states and 4749 transitions. [2020-09-25 14:34:09,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:34:09,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 302 [2020-09-25 14:34:09,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:09,089 INFO L225 Difference]: With dead ends: 3852 [2020-09-25 14:34:09,107 INFO L226 Difference]: Without dead ends: 2258 [2020-09-25 14:34:09,110 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 14:34:09,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2020-09-25 14:34:09,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 1817. [2020-09-25 14:34:09,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1817 states. [2020-09-25 14:34:09,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 2251 transitions. [2020-09-25 14:34:09,163 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 2251 transitions. Word has length 302 [2020-09-25 14:34:09,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:09,168 INFO L479 AbstractCegarLoop]: Abstraction has 1817 states and 2251 transitions. [2020-09-25 14:34:09,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:34:09,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 2251 transitions. [2020-09-25 14:34:09,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-09-25 14:34:09,175 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:09,175 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 14:34:09,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-25 14:34:09,176 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:09,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:09,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1834011252, now seen corresponding path program 1 times [2020-09-25 14:34:09,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:09,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709661487] [2020-09-25 14:34:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:09,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:09,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:09,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:09,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:10,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:10,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:12,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:12,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-09-25 14:34:12,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:34:12,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3005 [2020-09-25 14:34:12,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:12,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:12,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:34:12,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-09-25 14:34:12,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 14:34:12,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:12,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:12,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:12,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:12,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:12,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:12,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:12,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:12,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:12,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:12,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:12,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:12,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:12,405 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 14:34:12,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709661487] [2020-09-25 14:34:12,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:12,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:34:12,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297862338] [2020-09-25 14:34:12,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:34:12,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:12,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:34:12,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:34:12,407 INFO L87 Difference]: Start difference. First operand 1817 states and 2251 transitions. Second operand 4 states. [2020-09-25 14:34:12,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:12,829 INFO L93 Difference]: Finished difference Result 5279 states and 6631 transitions. [2020-09-25 14:34:12,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:34:12,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 307 [2020-09-25 14:34:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:12,837 INFO L225 Difference]: With dead ends: 5279 [2020-09-25 14:34:12,838 INFO L226 Difference]: Without dead ends: 3617 [2020-09-25 14:34:12,842 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 14:34:12,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3617 states. [2020-09-25 14:34:12,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3617 to 1823. [2020-09-25 14:34:12,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1823 states. [2020-09-25 14:34:12,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 2245 transitions. [2020-09-25 14:34:12,904 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 2245 transitions. Word has length 307 [2020-09-25 14:34:12,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:12,905 INFO L479 AbstractCegarLoop]: Abstraction has 1823 states and 2245 transitions. [2020-09-25 14:34:12,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:34:12,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 2245 transitions. [2020-09-25 14:34:12,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-09-25 14:34:12,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:12,911 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 14:34:12,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-25 14:34:12,914 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:12,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1459296181, now seen corresponding path program 1 times [2020-09-25 14:34:12,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:12,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21686930] [2020-09-25 14:34:12,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:12,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:13,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:13,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:13,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:13,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-09-25 14:34:13,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:34:13,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 634 [2020-09-25 14:34:13,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:13,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 285 [2020-09-25 14:34:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 14:34:13,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:13,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:13,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:13,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:13,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:13,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:13,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:34:13,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:13,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:13,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:13,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:13,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:13,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:13,684 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 14:34:13,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21686930] [2020-09-25 14:34:13,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:13,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:13,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760070212] [2020-09-25 14:34:13,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:13,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:13,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:13,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:13,687 INFO L87 Difference]: Start difference. First operand 1823 states and 2245 transitions. Second operand 3 states. [2020-09-25 14:34:13,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:13,767 INFO L93 Difference]: Finished difference Result 5090 states and 6330 transitions. [2020-09-25 14:34:13,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:13,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2020-09-25 14:34:13,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:13,781 INFO L225 Difference]: With dead ends: 5090 [2020-09-25 14:34:13,781 INFO L226 Difference]: Without dead ends: 3422 [2020-09-25 14:34:13,785 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 14:34:13,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3422 states. [2020-09-25 14:34:13,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3422 to 3420. [2020-09-25 14:34:13,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3420 states. [2020-09-25 14:34:13,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3420 states to 3420 states and 4239 transitions. [2020-09-25 14:34:13,892 INFO L78 Accepts]: Start accepts. Automaton has 3420 states and 4239 transitions. Word has length 328 [2020-09-25 14:34:13,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:13,892 INFO L479 AbstractCegarLoop]: Abstraction has 3420 states and 4239 transitions. [2020-09-25 14:34:13,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:13,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3420 states and 4239 transitions. [2020-09-25 14:34:13,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-09-25 14:34:13,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:13,903 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 14:34:13,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-25 14:34:13,904 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:13,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:13,904 INFO L82 PathProgramCache]: Analyzing trace with hash 74053825, now seen corresponding path program 1 times [2020-09-25 14:34:13,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:13,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299619771] [2020-09-25 14:34:13,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:14,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:14,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:14,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:14,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:14,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:15,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:15,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-09-25 14:34:15,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:34:15,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1152 [2020-09-25 14:34:15,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:15,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:15,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:15,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 224 [2020-09-25 14:34:15,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 14:34:15,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:15,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:15,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:15,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:15,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:15,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:15,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:15,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:15,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:15,235 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 14:34:15,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299619771] [2020-09-25 14:34:15,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:15,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:15,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074120629] [2020-09-25 14:34:15,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:15,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:15,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:15,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:15,238 INFO L87 Difference]: Start difference. First operand 3420 states and 4239 transitions. Second operand 3 states. [2020-09-25 14:34:15,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:15,488 INFO L93 Difference]: Finished difference Result 8241 states and 10292 transitions. [2020-09-25 14:34:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:15,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 329 [2020-09-25 14:34:15,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:15,502 INFO L225 Difference]: With dead ends: 8241 [2020-09-25 14:34:15,503 INFO L226 Difference]: Without dead ends: 4976 [2020-09-25 14:34:15,509 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 14:34:15,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4976 states. [2020-09-25 14:34:15,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4976 to 4974. [2020-09-25 14:34:15,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4974 states. [2020-09-25 14:34:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4974 states to 4974 states and 6175 transitions. [2020-09-25 14:34:15,661 INFO L78 Accepts]: Start accepts. Automaton has 4974 states and 6175 transitions. Word has length 329 [2020-09-25 14:34:15,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:15,661 INFO L479 AbstractCegarLoop]: Abstraction has 4974 states and 6175 transitions. [2020-09-25 14:34:15,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:15,662 INFO L276 IsEmpty]: Start isEmpty. Operand 4974 states and 6175 transitions. [2020-09-25 14:34:15,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-09-25 14:34:15,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:15,673 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 14:34:15,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-25 14:34:15,674 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:15,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:15,674 INFO L82 PathProgramCache]: Analyzing trace with hash 49280603, now seen corresponding path program 1 times [2020-09-25 14:34:15,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:15,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818401015] [2020-09-25 14:34:15,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:15,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:15,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:16,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:16,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-09-25 14:34:16,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:34:16,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-09-25 14:34:16,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:16,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:16,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:16,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-09-25 14:34:16,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 14:34:16,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:16,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:16,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:16,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:16,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:16,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:16,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:16,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:16,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:16,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:16,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:16,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:16,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:34:16,420 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 14:34:16,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818401015] [2020-09-25 14:34:16,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:16,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:16,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838283636] [2020-09-25 14:34:16,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:16,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:16,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:16,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:16,424 INFO L87 Difference]: Start difference. First operand 4974 states and 6175 transitions. Second operand 3 states. [2020-09-25 14:34:16,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:16,733 INFO L93 Difference]: Finished difference Result 14450 states and 17997 transitions. [2020-09-25 14:34:16,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:16,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 331 [2020-09-25 14:34:16,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:16,757 INFO L225 Difference]: With dead ends: 14450 [2020-09-25 14:34:16,757 INFO L226 Difference]: Without dead ends: 9631 [2020-09-25 14:34:16,767 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 14:34:16,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9631 states. [2020-09-25 14:34:16,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9631 to 4968. [2020-09-25 14:34:16,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4968 states. [2020-09-25 14:34:16,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4968 states to 4968 states and 6163 transitions. [2020-09-25 14:34:16,971 INFO L78 Accepts]: Start accepts. Automaton has 4968 states and 6163 transitions. Word has length 331 [2020-09-25 14:34:16,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:16,972 INFO L479 AbstractCegarLoop]: Abstraction has 4968 states and 6163 transitions. [2020-09-25 14:34:16,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:16,972 INFO L276 IsEmpty]: Start isEmpty. Operand 4968 states and 6163 transitions. [2020-09-25 14:34:16,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-09-25 14:34:16,982 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:16,982 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 14:34:16,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-09-25 14:34:16,983 INFO L427 AbstractCegarLoop]: === Iteration 25 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:16,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:16,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1344072815, now seen corresponding path program 1 times [2020-09-25 14:34:16,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:16,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664250891] [2020-09-25 14:34:16,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:17,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:17,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:17,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:17,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:17,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-09-25 14:34:17,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:34:17,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-09-25 14:34:17,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:17,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:17,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:34:17,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-09-25 14:34:17,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:34:17,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:17,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:34:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:34:17,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:34:17,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:34:17,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:34:17,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:34:17,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:34:17,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:34:17,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:34:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:34:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:34:17,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:34:17,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:34:17,785 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 14:34:17,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664250891] [2020-09-25 14:34:17,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:34:17,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 14:34:17,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920952488] [2020-09-25 14:34:17,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 14:34:17,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:34:17,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 14:34:17,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 14:34:17,787 INFO L87 Difference]: Start difference. First operand 4968 states and 6163 transitions. Second operand 3 states. [2020-09-25 14:34:18,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:34:18,091 INFO L93 Difference]: Finished difference Result 11335 states and 14136 transitions. [2020-09-25 14:34:18,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 14:34:18,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 332 [2020-09-25 14:34:18,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:34:18,101 INFO L225 Difference]: With dead ends: 11335 [2020-09-25 14:34:18,102 INFO L226 Difference]: Without dead ends: 4175 [2020-09-25 14:34:18,112 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 14:34:18,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4175 states. [2020-09-25 14:34:18,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4175 to 4173. [2020-09-25 14:34:18,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4173 states. [2020-09-25 14:34:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4173 states to 4173 states and 5176 transitions. [2020-09-25 14:34:18,226 INFO L78 Accepts]: Start accepts. Automaton has 4173 states and 5176 transitions. Word has length 332 [2020-09-25 14:34:18,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:34:18,226 INFO L479 AbstractCegarLoop]: Abstraction has 4173 states and 5176 transitions. [2020-09-25 14:34:18,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 14:34:18,227 INFO L276 IsEmpty]: Start isEmpty. Operand 4173 states and 5176 transitions. [2020-09-25 14:34:18,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-09-25 14:34:18,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:34:18,233 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 14:34:18,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-09-25 14:34:18,234 INFO L427 AbstractCegarLoop]: === Iteration 26 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:34:18,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:34:18,234 INFO L82 PathProgramCache]: Analyzing trace with hash -522042299, now seen corresponding path program 1 times [2020-09-25 14:34:18,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:34:18,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968562934] [2020-09-25 14:34:18,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:34:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:34:18,276 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:34:18,276 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:34:18,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-09-25 14:34:18,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:34:18 BoogieIcfgContainer [2020-09-25 14:34:18,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:34:18,345 INFO L168 Benchmark]: Toolchain (without parser) took 40406.88 ms. Allocated memory was 140.5 MB in the beginning and 777.5 MB in the end (delta: 637.0 MB). Free memory was 103.5 MB in the beginning and 476.2 MB in the end (delta: -372.8 MB). Peak memory consumption was 264.2 MB. Max. memory is 7.1 GB. [2020-09-25 14:34:18,346 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 14:34:18,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.33 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.8 MB in the beginning and 178.0 MB in the end (delta: -75.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-25 14:34:18,350 INFO L168 Benchmark]: Boogie Preprocessor took 69.88 ms. Allocated memory is still 203.4 MB. Free memory was 178.0 MB in the beginning and 175.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 14:34:18,356 INFO L168 Benchmark]: RCFGBuilder took 1199.28 ms. Allocated memory is still 203.4 MB. Free memory was 174.7 MB in the beginning and 97.3 MB in the end (delta: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. [2020-09-25 14:34:18,356 INFO L168 Benchmark]: TraceAbstraction took 38372.80 ms. Allocated memory was 203.4 MB in the beginning and 777.5 MB in the end (delta: 574.1 MB). Free memory was 96.6 MB in the beginning and 476.2 MB in the end (delta: -379.6 MB). Peak memory consumption was 194.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:34:18,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.33 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.8 MB in the beginning and 178.0 MB in the end (delta: -75.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.88 ms. Allocated memory is still 203.4 MB. Free memory was 178.0 MB in the beginning and 175.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1199.28 ms. Allocated memory is still 203.4 MB. Free memory was 174.7 MB in the beginning and 97.3 MB in the end (delta: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38372.80 ms. Allocated memory was 203.4 MB in the beginning and 777.5 MB in the end (delta: 574.1 MB). Free memory was 96.6 MB in the beginning and 476.2 MB in the end (delta: -379.6 MB). Peak memory consumption was 194.5 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: 38.2s, OverallIterations: 26, TraceHistogramMax: 6, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15916 SDtfs, 9374 SDslu, 17515 SDs, 0 SdLazy, 3837 SolverSat, 507 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4974occurred 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, 14999 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 25.8s InterpolantComputationTime, 6524 NumberOfCodeBlocks, 6524 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 6166 ConstructedInterpolants, 0 QuantifiedInterpolants, 2168337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 2282/2282 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...