/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:15:35,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:15:35,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:15:35,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:15:35,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:15:35,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:15:35,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:15:35,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:15:35,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:15:35,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:15:35,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:15:35,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:15:35,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:15:35,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:15:35,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:15:35,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:15:35,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:15:35,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:15:35,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:15:35,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:15:35,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:15:35,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:15:35,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:15:35,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:15:35,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:15:35,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:15:35,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:15:35,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:15:35,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:15:35,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:15:35,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:15:35,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:15:35,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:15:35,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:15:35,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:15:35,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:15:35,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:15:35,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:15:35,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:15:35,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:15:35,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:15:36,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 04:15:36,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:15:36,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:15:36,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:15:36,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:15:36,061 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:15:36,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:15:36,061 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:15:36,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:15:36,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:15:36,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:15:36,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:15:36,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:15:36,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:15:36,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:15:36,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:15:36,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:15:36,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:15:36,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:15:36,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:15:36,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:15:36,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:15:36,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:15:36,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:15:36,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:15:36,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:15:36,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:15:36,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:15:36,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:15:36,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:15:36,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:15:36,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:15:36,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:15:36,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:15:36,530 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:15:36,531 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:15:36,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c [2020-10-29 04:15:36,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44f6db76c/bc762b631de3430899d0ab99e16aef8b/FLAGcb95f6e11 [2020-10-29 04:15:37,349 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:15:37,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c [2020-10-29 04:15:37,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44f6db76c/bc762b631de3430899d0ab99e16aef8b/FLAGcb95f6e11 [2020-10-29 04:15:37,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44f6db76c/bc762b631de3430899d0ab99e16aef8b [2020-10-29 04:15:37,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:15:37,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:15:37,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:15:37,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:15:37,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:15:37,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:15:37" (1/1) ... [2020-10-29 04:15:37,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e742bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:37, skipping insertion in model container [2020-10-29 04:15:37,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:15:37" (1/1) ... [2020-10-29 04:15:37,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:15:37,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:15:38,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:15:38,133 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:15:38,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:15:38,217 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:15:38,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:38 WrapperNode [2020-10-29 04:15:38,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:15:38,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:15:38,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:15:38,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:15:38,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:38" (1/1) ... [2020-10-29 04:15:38,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:38" (1/1) ... [2020-10-29 04:15:38,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:38" (1/1) ... [2020-10-29 04:15:38,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:38" (1/1) ... [2020-10-29 04:15:38,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:38" (1/1) ... [2020-10-29 04:15:38,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:38" (1/1) ... [2020-10-29 04:15:38,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:38" (1/1) ... [2020-10-29 04:15:38,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:15:38,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:15:38,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:15:38,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:15:38,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:38" (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 [2020-10-29 04:15:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:15:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:15:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:15:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-29 04:15:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:15:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:15:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:15:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:15:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:15:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-29 04:15:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:15:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-29 04:15:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-29 04:15:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:15:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:15:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:15:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:15:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:15:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:15:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:15:38,853 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-29 04:15:39,468 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-29 04:15:39,468 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-29 04:15:39,495 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:15:39,496 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:15:39,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:15:39 BoogieIcfgContainer [2020-10-29 04:15:39,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:15:39,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:15:39,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:15:39,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:15:39,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:15:37" (1/3) ... [2020-10-29 04:15:39,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42adb351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:15:39, skipping insertion in model container [2020-10-29 04:15:39,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:38" (2/3) ... [2020-10-29 04:15:39,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42adb351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:15:39, skipping insertion in model container [2020-10-29 04:15:39,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:15:39" (3/3) ... [2020-10-29 04:15:39,507 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a.BV.c.cil.c [2020-10-29 04:15:39,519 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:15:39,524 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:15:39,539 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:15:39,570 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:15:39,570 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:15:39,571 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:15:39,571 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:15:39,571 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:15:39,571 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:15:39,571 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:15:39,571 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:15:39,594 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-10-29 04:15:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-29 04:15:39,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:39,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:39,607 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:39,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:39,614 INFO L82 PathProgramCache]: Analyzing trace with hash 2139538990, now seen corresponding path program 1 times [2020-10-29 04:15:39,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:39,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992100532] [2020-10-29 04:15:39,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:39,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:40,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 04:15:40,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:15:40,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-10-29 04:15:40,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:40,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 04:15:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-29 04:15:40,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:15:41,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:41,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:41,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:41,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:41,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 04:15:41,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:41,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:41,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:41,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:15:41,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992100532] [2020-10-29 04:15:41,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:15:41,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:15:41,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023950467] [2020-10-29 04:15:41,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:15:41,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:41,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:15:41,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:15:41,124 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 4 states. [2020-10-29 04:15:41,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:41,771 INFO L93 Difference]: Finished difference Result 399 states and 676 transitions. [2020-10-29 04:15:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:15:41,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-29 04:15:41,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:41,786 INFO L225 Difference]: With dead ends: 399 [2020-10-29 04:15:41,787 INFO L226 Difference]: Without dead ends: 225 [2020-10-29 04:15:41,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:15:41,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-10-29 04:15:41,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2020-10-29 04:15:41,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-29 04:15:41,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 338 transitions. [2020-10-29 04:15:41,863 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 338 transitions. Word has length 51 [2020-10-29 04:15:41,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:41,864 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 338 transitions. [2020-10-29 04:15:41,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:15:41,864 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 338 transitions. [2020-10-29 04:15:41,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-29 04:15:41,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:41,869 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] [2020-10-29 04:15:41,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:15:41,869 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:41,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:41,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1492737295, now seen corresponding path program 1 times [2020-10-29 04:15:41,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:41,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146131313] [2020-10-29 04:15:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:41,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:42,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:42,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 04:15:42,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:42,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-29 04:15:42,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:42,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:42,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:42,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 04:15:42,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 04:15:42,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 04:15:42,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:42,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:42,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:42,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:42,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:42,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:15:42,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:42,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:42,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:42,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:42,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:42,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 04:15:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:15:42,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146131313] [2020-10-29 04:15:42,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:15:42,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:15:42,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658401508] [2020-10-29 04:15:42,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:15:42,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:42,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:15:42,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:15:42,282 INFO L87 Difference]: Start difference. First operand 225 states and 338 transitions. Second operand 4 states. [2020-10-29 04:15:42,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:42,717 INFO L93 Difference]: Finished difference Result 436 states and 662 transitions. [2020-10-29 04:15:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:15:42,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-29 04:15:42,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:42,721 INFO L225 Difference]: With dead ends: 436 [2020-10-29 04:15:42,722 INFO L226 Difference]: Without dead ends: 329 [2020-10-29 04:15:42,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:15:42,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-10-29 04:15:42,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2020-10-29 04:15:42,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-10-29 04:15:42,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 496 transitions. [2020-10-29 04:15:42,760 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 496 transitions. Word has length 67 [2020-10-29 04:15:42,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:42,760 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 496 transitions. [2020-10-29 04:15:42,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:15:42,761 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 496 transitions. [2020-10-29 04:15:42,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-29 04:15:42,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:42,769 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 04:15:42,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:15:42,769 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:42,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:42,770 INFO L82 PathProgramCache]: Analyzing trace with hash -423864330, now seen corresponding path program 1 times [2020-10-29 04:15:42,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:42,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608252160] [2020-10-29 04:15:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:42,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:42,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:43,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:43,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:43,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 04:15:43,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:15:43,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-29 04:15:43,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:43,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-29 04:15:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 04:15:43,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:43,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:43,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:43,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:43,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:43,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:43,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:15:43,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:43,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:43,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:43,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:43,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:43,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:43,349 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 04:15:43,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608252160] [2020-10-29 04:15:43,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:15:43,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:15:43,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513273391] [2020-10-29 04:15:43,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:15:43,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:43,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:15:43,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:15:43,352 INFO L87 Difference]: Start difference. First operand 329 states and 496 transitions. Second operand 4 states. [2020-10-29 04:15:43,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:43,972 INFO L93 Difference]: Finished difference Result 782 states and 1206 transitions. [2020-10-29 04:15:43,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:15:43,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-29 04:15:43,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:43,976 INFO L225 Difference]: With dead ends: 782 [2020-10-29 04:15:43,976 INFO L226 Difference]: Without dead ends: 467 [2020-10-29 04:15:43,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:15:43,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-10-29 04:15:44,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 455. [2020-10-29 04:15:44,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-10-29 04:15:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 637 transitions. [2020-10-29 04:15:44,032 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 637 transitions. Word has length 88 [2020-10-29 04:15:44,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:44,033 INFO L481 AbstractCegarLoop]: Abstraction has 455 states and 637 transitions. [2020-10-29 04:15:44,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:15:44,033 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 637 transitions. [2020-10-29 04:15:44,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-29 04:15:44,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:44,038 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 04:15:44,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:15:44,038 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:44,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:44,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1321257608, now seen corresponding path program 1 times [2020-10-29 04:15:44,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:44,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315693673] [2020-10-29 04:15:44,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:44,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:44,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 04:15:44,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:15:44,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-29 04:15:44,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:44,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:44,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:44,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-29 04:15:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 04:15:44,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 04:15:44,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:44,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:44,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:44,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:44,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:15:44,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:44,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 04:15:44,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315693673] [2020-10-29 04:15:44,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:15:44,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:15:44,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791987072] [2020-10-29 04:15:44,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:15:44,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:44,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:15:44,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:15:44,556 INFO L87 Difference]: Start difference. First operand 455 states and 637 transitions. Second operand 4 states. [2020-10-29 04:15:45,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:45,067 INFO L93 Difference]: Finished difference Result 896 states and 1260 transitions. [2020-10-29 04:15:45,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:15:45,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-29 04:15:45,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:45,087 INFO L225 Difference]: With dead ends: 896 [2020-10-29 04:15:45,087 INFO L226 Difference]: Without dead ends: 601 [2020-10-29 04:15:45,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:15:45,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2020-10-29 04:15:45,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2020-10-29 04:15:45,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-10-29 04:15:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 843 transitions. [2020-10-29 04:15:45,156 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 843 transitions. Word has length 88 [2020-10-29 04:15:45,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:45,156 INFO L481 AbstractCegarLoop]: Abstraction has 601 states and 843 transitions. [2020-10-29 04:15:45,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:15:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 843 transitions. [2020-10-29 04:15:45,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-29 04:15:45,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:45,168 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 04:15:45,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:15:45,169 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:45,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:45,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1471882461, now seen corresponding path program 1 times [2020-10-29 04:15:45,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:45,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037300144] [2020-10-29 04:15:45,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:45,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:45,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:45,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 04:15:45,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:45,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 04:15:45,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:45,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:45,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:45,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 04:15:45,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-29 04:15:45,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:45,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:45,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:45,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:45,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:45,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:45,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:15:45,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:45,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:45,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-29 04:15:45,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037300144] [2020-10-29 04:15:45,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:15:45,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:15:45,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890626137] [2020-10-29 04:15:45,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:15:45,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:45,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:15:45,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:15:45,457 INFO L87 Difference]: Start difference. First operand 601 states and 843 transitions. Second operand 4 states. [2020-10-29 04:15:45,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:45,963 INFO L93 Difference]: Finished difference Result 750 states and 1053 transitions. [2020-10-29 04:15:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:15:45,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-10-29 04:15:45,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:45,969 INFO L225 Difference]: With dead ends: 750 [2020-10-29 04:15:45,969 INFO L226 Difference]: Without dead ends: 747 [2020-10-29 04:15:45,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:15:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-10-29 04:15:46,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2020-10-29 04:15:46,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2020-10-29 04:15:46,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1050 transitions. [2020-10-29 04:15:46,027 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1050 transitions. Word has length 128 [2020-10-29 04:15:46,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:46,028 INFO L481 AbstractCegarLoop]: Abstraction has 747 states and 1050 transitions. [2020-10-29 04:15:46,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:15:46,029 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1050 transitions. [2020-10-29 04:15:46,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-29 04:15:46,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:46,032 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 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] [2020-10-29 04:15:46,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:15:46,033 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:46,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:46,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1530385458, now seen corresponding path program 1 times [2020-10-29 04:15:46,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:46,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27580909] [2020-10-29 04:15:46,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:46,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:46,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 04:15:46,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:15:46,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-10-29 04:15:46,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:46,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:46,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:46,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-29 04:15:46,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 04:15:46,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:46,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:46,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:46,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:46,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:15:46,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:46,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:46,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:46,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:46,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:46,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:46,813 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-29 04:15:46,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27580909] [2020-10-29 04:15:46,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:15:46,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:15:46,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77704026] [2020-10-29 04:15:46,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:15:46,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:46,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:15:46,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:15:46,817 INFO L87 Difference]: Start difference. First operand 747 states and 1050 transitions. Second operand 4 states. [2020-10-29 04:15:47,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:47,316 INFO L93 Difference]: Finished difference Result 2191 states and 3093 transitions. [2020-10-29 04:15:47,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:15:47,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 150 [2020-10-29 04:15:47,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:47,329 INFO L225 Difference]: With dead ends: 2191 [2020-10-29 04:15:47,329 INFO L226 Difference]: Without dead ends: 1458 [2020-10-29 04:15:47,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:15:47,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2020-10-29 04:15:47,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1457. [2020-10-29 04:15:47,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2020-10-29 04:15:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2045 transitions. [2020-10-29 04:15:47,439 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2045 transitions. Word has length 150 [2020-10-29 04:15:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:47,440 INFO L481 AbstractCegarLoop]: Abstraction has 1457 states and 2045 transitions. [2020-10-29 04:15:47,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:15:47,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2045 transitions. [2020-10-29 04:15:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-29 04:15:47,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:47,446 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 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] [2020-10-29 04:15:47,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:15:47,447 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:47,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:47,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1411943984, now seen corresponding path program 1 times [2020-10-29 04:15:47,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:47,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567183961] [2020-10-29 04:15:47,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:47,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:48,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:48,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:48,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 04:15:48,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:15:48,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 862 [2020-10-29 04:15:48,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:48,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:48,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:48,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-10-29 04:15:48,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 04:15:48,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:48,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:48,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:48,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:48,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:48,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:48,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:15:48,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:48,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:48,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:48,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:48,448 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-29 04:15:48,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567183961] [2020-10-29 04:15:48,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:15:48,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:15:48,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164868681] [2020-10-29 04:15:48,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:15:48,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:48,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:15:48,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:15:48,453 INFO L87 Difference]: Start difference. First operand 1457 states and 2045 transitions. Second operand 4 states. [2020-10-29 04:15:49,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:49,015 INFO L93 Difference]: Finished difference Result 3360 states and 4872 transitions. [2020-10-29 04:15:49,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:15:49,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 150 [2020-10-29 04:15:49,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:49,027 INFO L225 Difference]: With dead ends: 3360 [2020-10-29 04:15:49,027 INFO L226 Difference]: Without dead ends: 1797 [2020-10-29 04:15:49,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:15:49,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2020-10-29 04:15:49,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1767. [2020-10-29 04:15:49,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-10-29 04:15:49,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2495 transitions. [2020-10-29 04:15:49,139 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2495 transitions. Word has length 150 [2020-10-29 04:15:49,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:49,140 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 2495 transitions. [2020-10-29 04:15:49,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:15:49,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2495 transitions. [2020-10-29 04:15:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-29 04:15:49,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:49,146 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 04:15:49,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:15:49,146 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:49,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:49,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1197375830, now seen corresponding path program 1 times [2020-10-29 04:15:49,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:49,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195672832] [2020-10-29 04:15:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:49,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:53,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-29 04:15:54,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:15:54,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:15:54,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:15:54,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 04:15:54,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 04:15:54,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:54,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:54,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:54,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:54,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:15:54,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:54,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 168 proven. 93 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-29 04:15:54,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195672832] [2020-10-29 04:15:54,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:54,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:15:54,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882273443] [2020-10-29 04:15:54,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:15:54,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:54,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:15:54,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:15:54,772 INFO L87 Difference]: Start difference. First operand 1767 states and 2495 transitions. Second operand 6 states. [2020-10-29 04:15:57,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:57,646 INFO L93 Difference]: Finished difference Result 6702 states and 9725 transitions. [2020-10-29 04:15:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:15:57,647 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-10-29 04:15:57,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:57,674 INFO L225 Difference]: With dead ends: 6702 [2020-10-29 04:15:57,675 INFO L226 Difference]: Without dead ends: 4939 [2020-10-29 04:15:57,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:15:57,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2020-10-29 04:15:57,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 3937. [2020-10-29 04:15:57,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3937 states. [2020-10-29 04:15:57,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3937 states to 3937 states and 5590 transitions. [2020-10-29 04:15:57,928 INFO L78 Accepts]: Start accepts. Automaton has 3937 states and 5590 transitions. Word has length 182 [2020-10-29 04:15:57,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:57,929 INFO L481 AbstractCegarLoop]: Abstraction has 3937 states and 5590 transitions. [2020-10-29 04:15:57,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:15:57,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3937 states and 5590 transitions. [2020-10-29 04:15:57,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-29 04:15:57,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:57,941 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 04:15:57,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:15:57,941 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:57,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:57,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1520401787, now seen corresponding path program 1 times [2020-10-29 04:15:57,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:57,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107666290] [2020-10-29 04:15:57,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:57,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:01,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:01,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 04:16:01,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:16:01,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3221 [2020-10-29 04:16:01,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:01,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:16:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 04:16:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 04:16:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:01,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:01,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:01,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:01,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:01,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:01,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:01,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:01,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:01,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:01,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:01,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:01,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 230 proven. 42 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-29 04:16:01,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107666290] [2020-10-29 04:16:01,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:01,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:16:01,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560220018] [2020-10-29 04:16:01,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:16:01,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:01,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:16:01,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:16:01,447 INFO L87 Difference]: Start difference. First operand 3937 states and 5590 transitions. Second operand 6 states. [2020-10-29 04:16:04,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:04,562 INFO L93 Difference]: Finished difference Result 11987 states and 17038 transitions. [2020-10-29 04:16:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 04:16:04,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2020-10-29 04:16:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:04,608 INFO L225 Difference]: With dead ends: 11987 [2020-10-29 04:16:04,609 INFO L226 Difference]: Without dead ends: 7954 [2020-10-29 04:16:04,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:16:04,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7954 states. [2020-10-29 04:16:05,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7954 to 6222. [2020-10-29 04:16:05,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6222 states. [2020-10-29 04:16:05,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6222 states to 6222 states and 8830 transitions. [2020-10-29 04:16:05,042 INFO L78 Accepts]: Start accepts. Automaton has 6222 states and 8830 transitions. Word has length 186 [2020-10-29 04:16:05,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:05,043 INFO L481 AbstractCegarLoop]: Abstraction has 6222 states and 8830 transitions. [2020-10-29 04:16:05,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:16:05,043 INFO L276 IsEmpty]: Start isEmpty. Operand 6222 states and 8830 transitions. [2020-10-29 04:16:05,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-29 04:16:05,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:05,059 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:05,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:16:05,059 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:05,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:05,060 INFO L82 PathProgramCache]: Analyzing trace with hash -801284111, now seen corresponding path program 1 times [2020-10-29 04:16:05,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:05,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625320153] [2020-10-29 04:16:05,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:05,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:05,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:05,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-29 04:16:05,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:05,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 04:16:05,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:05,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:05,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:05,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-29 04:16:05,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 04:16:05,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:05,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:05,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:05,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:05,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:05,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:05,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:16:05,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:05,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:05,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:05,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:05,354 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-29 04:16:05,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625320153] [2020-10-29 04:16:05,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:16:05,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:16:05,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248708640] [2020-10-29 04:16:05,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:16:05,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:05,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:16:05,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:16:05,357 INFO L87 Difference]: Start difference. First operand 6222 states and 8830 transitions. Second operand 4 states. [2020-10-29 04:16:06,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:06,295 INFO L93 Difference]: Finished difference Result 13720 states and 19922 transitions. [2020-10-29 04:16:06,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:16:06,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 190 [2020-10-29 04:16:06,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:06,362 INFO L225 Difference]: With dead ends: 13720 [2020-10-29 04:16:06,363 INFO L226 Difference]: Without dead ends: 7512 [2020-10-29 04:16:06,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:16:06,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7512 states. [2020-10-29 04:16:06,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7512 to 7452. [2020-10-29 04:16:06,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7452 states. [2020-10-29 04:16:06,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7452 states to 7452 states and 10210 transitions. [2020-10-29 04:16:06,850 INFO L78 Accepts]: Start accepts. Automaton has 7452 states and 10210 transitions. Word has length 190 [2020-10-29 04:16:06,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:06,850 INFO L481 AbstractCegarLoop]: Abstraction has 7452 states and 10210 transitions. [2020-10-29 04:16:06,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:16:06,850 INFO L276 IsEmpty]: Start isEmpty. Operand 7452 states and 10210 transitions. [2020-10-29 04:16:06,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-29 04:16:06,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:06,869 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-29 04:16:06,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:16:06,869 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:06,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:06,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1827236091, now seen corresponding path program 1 times [2020-10-29 04:16:06,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:06,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816846848] [2020-10-29 04:16:06,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:06,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:07,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:07,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-29 04:16:07,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:07,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 04:16:07,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:07,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:07,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:07,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-10-29 04:16:07,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 04:16:07,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:07,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:07,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:07,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:07,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:07,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:07,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:07,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:07,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:07,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:07,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:07,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-10-29 04:16:07,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816846848] [2020-10-29 04:16:07,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:16:07,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:16:07,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60169253] [2020-10-29 04:16:07,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:16:07,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:07,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:16:07,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:16:07,131 INFO L87 Difference]: Start difference. First operand 7452 states and 10210 transitions. Second operand 4 states. [2020-10-29 04:16:07,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:07,963 INFO L93 Difference]: Finished difference Result 15820 states and 21692 transitions. [2020-10-29 04:16:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:16:07,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 232 [2020-10-29 04:16:07,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:07,984 INFO L225 Difference]: With dead ends: 15820 [2020-10-29 04:16:07,984 INFO L226 Difference]: Without dead ends: 8382 [2020-10-29 04:16:08,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:16:08,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8382 states. [2020-10-29 04:16:08,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8382 to 8082. [2020-10-29 04:16:08,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8082 states. [2020-10-29 04:16:08,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8082 states to 8082 states and 10990 transitions. [2020-10-29 04:16:08,383 INFO L78 Accepts]: Start accepts. Automaton has 8082 states and 10990 transitions. Word has length 232 [2020-10-29 04:16:08,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:08,384 INFO L481 AbstractCegarLoop]: Abstraction has 8082 states and 10990 transitions. [2020-10-29 04:16:08,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:16:08,384 INFO L276 IsEmpty]: Start isEmpty. Operand 8082 states and 10990 transitions. [2020-10-29 04:16:08,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-29 04:16:08,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:08,404 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-29 04:16:08,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:16:08,404 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:08,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:08,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1411829898, now seen corresponding path program 1 times [2020-10-29 04:16:08,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:08,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107896336] [2020-10-29 04:16:08,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:08,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:08,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:08,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-29 04:16:08,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:08,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-29 04:16:08,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:08,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:08,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:16:08,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-29 04:16:08,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 04:16:08,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:08,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:08,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:08,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:08,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:08,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:08,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:16:08,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:08,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:08,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:08,842 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-10-29 04:16:08,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107896336] [2020-10-29 04:16:08,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:08,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:16:08,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500389799] [2020-10-29 04:16:08,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:16:08,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:08,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:16:08,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:16:08,844 INFO L87 Difference]: Start difference. First operand 8082 states and 10990 transitions. Second operand 5 states. [2020-10-29 04:16:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:10,192 INFO L93 Difference]: Finished difference Result 18520 states and 25742 transitions. [2020-10-29 04:16:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:16:10,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 260 [2020-10-29 04:16:10,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:10,208 INFO L225 Difference]: With dead ends: 18520 [2020-10-29 04:16:10,209 INFO L226 Difference]: Without dead ends: 6317 [2020-10-29 04:16:10,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:16:10,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6317 states. [2020-10-29 04:16:10,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6317 to 6050. [2020-10-29 04:16:10,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6050 states. [2020-10-29 04:16:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6050 states to 6050 states and 8139 transitions. [2020-10-29 04:16:10,550 INFO L78 Accepts]: Start accepts. Automaton has 6050 states and 8139 transitions. Word has length 260 [2020-10-29 04:16:10,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:10,550 INFO L481 AbstractCegarLoop]: Abstraction has 6050 states and 8139 transitions. [2020-10-29 04:16:10,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:16:10,550 INFO L276 IsEmpty]: Start isEmpty. Operand 6050 states and 8139 transitions. [2020-10-29 04:16:10,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-29 04:16:10,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:10,567 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:10,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 04:16:10,568 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:10,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:10,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1984860047, now seen corresponding path program 1 times [2020-10-29 04:16:10,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:10,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847987562] [2020-10-29 04:16:10,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:10,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:10,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:10,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:10,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:11,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:11,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:11,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-29 04:16:11,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:16:11,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 814 [2020-10-29 04:16:11,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:11,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:11,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:11,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 226 [2020-10-29 04:16:11,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 04:16:11,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:11,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:11,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:11,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:11,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:11,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:11,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:16:11,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:11,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:11,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:11,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:11,625 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2020-10-29 04:16:11,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847987562] [2020-10-29 04:16:11,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:16:11,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:16:11,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246633093] [2020-10-29 04:16:11,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:16:11,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:11,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:16:11,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:16:11,628 INFO L87 Difference]: Start difference. First operand 6050 states and 8139 transitions. Second operand 4 states. [2020-10-29 04:16:12,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:12,338 INFO L93 Difference]: Finished difference Result 13305 states and 18333 transitions. [2020-10-29 04:16:12,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:16:12,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 260 [2020-10-29 04:16:12,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:12,357 INFO L225 Difference]: With dead ends: 13305 [2020-10-29 04:16:12,357 INFO L226 Difference]: Without dead ends: 7037 [2020-10-29 04:16:12,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:16:12,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7037 states. [2020-10-29 04:16:12,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7037 to 6575. [2020-10-29 04:16:12,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6575 states. [2020-10-29 04:16:12,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 8997 transitions. [2020-10-29 04:16:12,653 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 8997 transitions. Word has length 260 [2020-10-29 04:16:12,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:12,653 INFO L481 AbstractCegarLoop]: Abstraction has 6575 states and 8997 transitions. [2020-10-29 04:16:12,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:16:12,654 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 8997 transitions. [2020-10-29 04:16:12,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-29 04:16:12,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:12,669 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 04:16:12,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 04:16:12,670 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:12,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1881245707, now seen corresponding path program 1 times [2020-10-29 04:16:12,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:12,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623194005] [2020-10-29 04:16:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:12,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:12,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:12,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:13,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:13,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:13,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:13,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:14,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-29 04:16:15,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:16:15,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2365 [2020-10-29 04:16:15,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:16:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-29 04:16:15,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 04:16:15,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:15,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:15,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:15,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:15,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:15,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:15,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:16:15,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:15,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:15,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:15,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 421 proven. 68 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2020-10-29 04:16:15,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623194005] [2020-10-29 04:16:15,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:15,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:16:15,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903926274] [2020-10-29 04:16:15,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:16:15,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:15,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:16:15,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:16:15,226 INFO L87 Difference]: Start difference. First operand 6575 states and 8997 transitions. Second operand 5 states. [2020-10-29 04:16:16,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:16,261 INFO L93 Difference]: Finished difference Result 10115 states and 13834 transitions. [2020-10-29 04:16:16,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:16:16,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 276 [2020-10-29 04:16:16,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:16,264 INFO L225 Difference]: With dead ends: 10115 [2020-10-29 04:16:16,264 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 04:16:16,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:16:16,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 04:16:16,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 04:16:16,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 04:16:16,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 04:16:16,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276 [2020-10-29 04:16:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:16,287 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 04:16:16,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:16:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 04:16:16,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 04:16:16,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 04:16:16,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 04:16:16,541 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 75 [2020-10-29 04:16:16,676 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 38 [2020-10-29 04:16:17,338 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 90 [2020-10-29 04:16:17,527 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 91 [2020-10-29 04:16:17,896 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 127 [2020-10-29 04:16:18,267 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 96 [2020-10-29 04:16:18,594 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 90 [2020-10-29 04:16:18,904 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 103 [2020-10-29 04:16:19,362 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 27 [2020-10-29 04:16:19,480 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 3 [2020-10-29 04:16:19,703 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 30 [2020-10-29 04:16:20,155 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 20 [2020-10-29 04:16:20,266 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 3 [2020-10-29 04:16:20,371 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 7 [2020-10-29 04:16:20,696 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 14 [2020-10-29 04:16:21,045 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 27 [2020-10-29 04:16:21,284 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 7 [2020-10-29 04:16:21,424 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 11 [2020-10-29 04:16:21,646 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 13 [2020-10-29 04:16:21,720 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-29 04:16:21,720 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-29 04:16:21,721 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-29 04:16:21,721 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-29 04:16:21,721 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:16:21,721 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-29 04:16:21,721 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:16:21,721 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:16:21,721 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-29 04:16:21,722 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 04:16:21,722 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:16:21,722 INFO L277 CegarLoopResult]: At program point L687(line 687) the Hoare annotation is: true [2020-10-29 04:16:21,722 INFO L274 CegarLoopResult]: For program point L687-1(line 687) no Hoare annotation was computed. [2020-10-29 04:16:21,722 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 680 691) the Hoare annotation is: true [2020-10-29 04:16:21,722 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 680 691) no Hoare annotation was computed. [2020-10-29 04:16:21,722 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 680 691) no Hoare annotation was computed. [2020-10-29 04:16:21,722 INFO L274 CegarLoopResult]: For program point L630(lines 630 658) no Hoare annotation was computed. [2020-10-29 04:16:21,722 INFO L274 CegarLoopResult]: For program point L399(lines 399 405) no Hoare annotation was computed. [2020-10-29 04:16:21,722 INFO L274 CegarLoopResult]: For program point L366(lines 366 385) no Hoare annotation was computed. [2020-10-29 04:16:21,723 INFO L274 CegarLoopResult]: For program point L631(lines 631 655) no Hoare annotation was computed. [2020-10-29 04:16:21,723 INFO L274 CegarLoopResult]: For program point L565(lines 565 569) no Hoare annotation was computed. [2020-10-29 04:16:21,723 INFO L274 CegarLoopResult]: For program point L532(lines 532 536) no Hoare annotation was computed. [2020-10-29 04:16:21,723 INFO L274 CegarLoopResult]: For program point L499(lines 499 503) no Hoare annotation was computed. [2020-10-29 04:16:21,723 INFO L274 CegarLoopResult]: For program point L565-2(lines 565 569) no Hoare annotation was computed. [2020-10-29 04:16:21,723 INFO L274 CegarLoopResult]: For program point L532-2(lines 213 591) no Hoare annotation was computed. [2020-10-29 04:16:21,723 INFO L274 CegarLoopResult]: For program point L367(lines 367 371) no Hoare annotation was computed. [2020-10-29 04:16:21,723 INFO L274 CegarLoopResult]: For program point L367-2(lines 366 383) no Hoare annotation was computed. [2020-10-29 04:16:21,723 INFO L274 CegarLoopResult]: For program point L235(lines 235 240) no Hoare annotation was computed. [2020-10-29 04:16:21,724 INFO L274 CegarLoopResult]: For program point L202(lines 202 597) no Hoare annotation was computed. [2020-10-29 04:16:21,724 INFO L274 CegarLoopResult]: For program point L169(lines 169 608) no Hoare annotation was computed. [2020-10-29 04:16:21,724 INFO L274 CegarLoopResult]: For program point L136(lines 136 619) no Hoare annotation was computed. [2020-10-29 04:16:21,724 INFO L270 CegarLoopResult]: At program point L103-2(lines 103 660) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse2 (= 8640 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse3 (<= ssl3_accept_~s__state~0 8448)) (.cse1 (<= ssl3_accept_~blastFlag~0 3))) (or (and .cse0 (= ssl3_accept_~s__state~0 8656) .cse1) (and .cse1 (<= 8672 ssl3_accept_~s__state~0)) (and .cse0 .cse2 .cse3) (<= ssl3_accept_~blastFlag~0 2) (and (= ssl3_accept_~s__state~0 8640) .cse0 .cse2) (and .cse3 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)))) [2020-10-29 04:16:21,724 INFO L274 CegarLoopResult]: For program point L665(lines 665 669) no Hoare annotation was computed. [2020-10-29 04:16:21,724 INFO L274 CegarLoopResult]: For program point L632(lines 632 641) no Hoare annotation was computed. [2020-10-29 04:16:21,724 INFO L274 CegarLoopResult]: For program point L665-2(lines 665 669) no Hoare annotation was computed. [2020-10-29 04:16:21,724 INFO L274 CegarLoopResult]: For program point L632-2(lines 631 653) no Hoare annotation was computed. [2020-10-29 04:16:21,725 INFO L274 CegarLoopResult]: For program point L467(lines 467 471) no Hoare annotation was computed. [2020-10-29 04:16:21,725 INFO L274 CegarLoopResult]: For program point L335-1(lines 335 344) no Hoare annotation was computed. [2020-10-29 04:16:21,725 INFO L270 CegarLoopResult]: At program point L170(lines 169 608) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8448))) (or (and (<= ssl3_accept_~blastFlag~0 2) .cse0) (and (not (= ssl3_accept_~s__hit~0 0)) (= 8640 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse0) (and .cse0 (<= ssl3_accept_~blastFlag~0 3) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)))) [2020-10-29 04:16:21,725 INFO L270 CegarLoopResult]: At program point L137(lines 130 621) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8496))) (or (and .cse0 (<= ssl3_accept_~blastFlag~0 2)) (let ((.cse2 (+ (* 2 ssl3_accept_~ag_X~0) (* 2 ssl3_accept_~ag_Y~0))) (.cse1 (+ (* 4294967296 (div (+ (* ssl3_accept_~ag_X~0 2) (* ssl3_accept_~ag_Y~0 2)) 4294967296)) 8656))) (and (<= .cse1 .cse2) .cse0 (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3) (<= .cse2 .cse1))))) [2020-10-29 04:16:21,725 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-10-29 04:16:21,725 INFO L274 CegarLoopResult]: For program point L634(lines 634 638) no Hoare annotation was computed. [2020-10-29 04:16:21,725 INFO L274 CegarLoopResult]: For program point L205(lines 205 596) no Hoare annotation was computed. [2020-10-29 04:16:21,725 INFO L274 CegarLoopResult]: For program point L172(lines 172 607) no Hoare annotation was computed. [2020-10-29 04:16:21,725 INFO L274 CegarLoopResult]: For program point L139(lines 139 618) no Hoare annotation was computed. [2020-10-29 04:16:21,726 INFO L274 CegarLoopResult]: For program point L106(lines 106 629) no Hoare annotation was computed. [2020-10-29 04:16:21,726 INFO L270 CegarLoopResult]: At program point L206(lines 202 597) the Hoare annotation is: (and (<= ssl3_accept_~blastFlag~0 3) (<= 8672 ssl3_accept_~s__state~0)) [2020-10-29 04:16:21,726 INFO L277 CegarLoopResult]: At program point L107(lines 106 629) the Hoare annotation is: true [2020-10-29 04:16:21,726 INFO L274 CegarLoopResult]: For program point L339(lines 339 343) no Hoare annotation was computed. [2020-10-29 04:16:21,726 INFO L274 CegarLoopResult]: For program point L472(lines 472 483) no Hoare annotation was computed. [2020-10-29 04:16:21,726 INFO L274 CegarLoopResult]: For program point L439(lines 439 443) no Hoare annotation was computed. [2020-10-29 04:16:21,726 INFO L270 CegarLoopResult]: At program point L373(lines 356 391) the Hoare annotation is: (<= ssl3_accept_~blastFlag~0 2) [2020-10-29 04:16:21,726 INFO L274 CegarLoopResult]: For program point L241(lines 241 246) no Hoare annotation was computed. [2020-10-29 04:16:21,726 INFO L274 CegarLoopResult]: For program point L208(lines 208 595) no Hoare annotation was computed. [2020-10-29 04:16:21,726 INFO L274 CegarLoopResult]: For program point L175(lines 175 606) no Hoare annotation was computed. [2020-10-29 04:16:21,727 INFO L274 CegarLoopResult]: For program point L142(lines 142 617) no Hoare annotation was computed. [2020-10-29 04:16:21,727 INFO L274 CegarLoopResult]: For program point L109(lines 109 628) no Hoare annotation was computed. [2020-10-29 04:16:21,727 INFO L277 CegarLoopResult]: At program point ssl3_acceptENTRY(lines 11 679) the Hoare annotation is: true [2020-10-29 04:16:21,727 INFO L270 CegarLoopResult]: At program point L407(lines 398 429) the Hoare annotation is: (<= ssl3_accept_~blastFlag~0 2) [2020-10-29 04:16:21,727 INFO L277 CegarLoopResult]: At program point L209(lines 208 595) the Hoare annotation is: true [2020-10-29 04:16:21,727 INFO L270 CegarLoopResult]: At program point L176(lines 172 607) the Hoare annotation is: (<= ssl3_accept_~blastFlag~0 2) [2020-10-29 04:16:21,727 INFO L270 CegarLoopResult]: At program point L143(lines 139 618) the Hoare annotation is: (and (<= ssl3_accept_~s__state~0 8512) (<= ssl3_accept_~blastFlag~0 2)) [2020-10-29 04:16:21,727 INFO L274 CegarLoopResult]: For program point L77(lines 77 85) no Hoare annotation was computed. [2020-10-29 04:16:21,727 INFO L274 CegarLoopResult]: For program point L672(line 672) no Hoare annotation was computed. [2020-10-29 04:16:21,728 INFO L274 CegarLoopResult]: For program point L375(lines 375 379) no Hoare annotation was computed. [2020-10-29 04:16:21,728 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-29 04:16:21,728 INFO L274 CegarLoopResult]: For program point L178(lines 178 605) no Hoare annotation was computed. [2020-10-29 04:16:21,728 INFO L274 CegarLoopResult]: For program point L145(lines 145 616) no Hoare annotation was computed. [2020-10-29 04:16:21,728 INFO L274 CegarLoopResult]: For program point L112(lines 112 627) no Hoare annotation was computed. [2020-10-29 04:16:21,728 INFO L274 CegarLoopResult]: For program point L575(lines 575 585) no Hoare annotation was computed. [2020-10-29 04:16:21,728 INFO L274 CegarLoopResult]: For program point L575-1(lines 575 585) no Hoare annotation was computed. [2020-10-29 04:16:21,728 INFO L274 CegarLoopResult]: For program point L476(lines 476 480) no Hoare annotation was computed. [2020-10-29 04:16:21,728 INFO L274 CegarLoopResult]: For program point L278(lines 278 282) no Hoare annotation was computed. [2020-10-29 04:16:21,728 INFO L277 CegarLoopResult]: At program point L212(lines 211 594) the Hoare annotation is: true [2020-10-29 04:16:21,728 INFO L274 CegarLoopResult]: For program point L80(lines 80 84) no Hoare annotation was computed. [2020-10-29 04:16:21,729 INFO L274 CegarLoopResult]: For program point L80-2(lines 77 85) no Hoare annotation was computed. [2020-10-29 04:16:21,729 INFO L274 CegarLoopResult]: For program point L510(lines 510 514) no Hoare annotation was computed. [2020-10-29 04:16:21,729 INFO L274 CegarLoopResult]: For program point L312(lines 312 320) no Hoare annotation was computed. [2020-10-29 04:16:21,729 INFO L277 CegarLoopResult]: At program point L676(lines 68 678) the Hoare annotation is: true [2020-10-29 04:16:21,729 INFO L274 CegarLoopResult]: For program point L643(lines 643 649) no Hoare annotation was computed. [2020-10-29 04:16:21,729 INFO L274 CegarLoopResult]: For program point L544(lines 544 549) no Hoare annotation was computed. [2020-10-29 04:16:21,729 INFO L274 CegarLoopResult]: For program point L181(lines 181 604) no Hoare annotation was computed. [2020-10-29 04:16:21,729 INFO L274 CegarLoopResult]: For program point L148(lines 148 615) no Hoare annotation was computed. [2020-10-29 04:16:21,729 INFO L274 CegarLoopResult]: For program point L115(lines 115 626) no Hoare annotation was computed. [2020-10-29 04:16:21,729 INFO L274 CegarLoopResult]: For program point L578(lines 578 582) no Hoare annotation was computed. [2020-10-29 04:16:21,729 INFO L270 CegarLoopResult]: At program point L182(lines 178 605) the Hoare annotation is: (<= ssl3_accept_~blastFlag~0 2) [2020-10-29 04:16:21,730 INFO L270 CegarLoopResult]: At program point L149(lines 145 616) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~blastFlag~0 2))) (or (and (<= ssl3_accept_~s__state~0 8528) .cse0) (and (not (= ssl3_accept_~s__hit~0 0)) .cse0))) [2020-10-29 04:16:21,730 INFO L274 CegarLoopResult]: For program point L315(lines 315 319) no Hoare annotation was computed. [2020-10-29 04:16:21,730 INFO L274 CegarLoopResult]: For program point L315-2(lines 213 591) no Hoare annotation was computed. [2020-10-29 04:16:21,730 INFO L277 CegarLoopResult]: At program point L216(lines 109 628) the Hoare annotation is: true [2020-10-29 04:16:21,730 INFO L274 CegarLoopResult]: For program point L184(lines 184 603) no Hoare annotation was computed. [2020-10-29 04:16:21,730 INFO L274 CegarLoopResult]: For program point L151(lines 151 614) no Hoare annotation was computed. [2020-10-29 04:16:21,730 INFO L274 CegarLoopResult]: For program point L118(lines 118 625) no Hoare annotation was computed. [2020-10-29 04:16:21,730 INFO L274 CegarLoopResult]: For program point L515(lines 515 519) no Hoare annotation was computed. [2020-10-29 04:16:21,730 INFO L274 CegarLoopResult]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2020-10-29 04:16:21,730 INFO L274 CegarLoopResult]: For program point L449-1(lines 449 461) no Hoare annotation was computed. [2020-10-29 04:16:21,731 INFO L270 CegarLoopResult]: At program point L417(lines 408 428) the Hoare annotation is: (<= ssl3_accept_~blastFlag~0 2) [2020-10-29 04:16:21,731 INFO L274 CegarLoopResult]: For program point L351(lines 351 355) no Hoare annotation was computed. [2020-10-29 04:16:21,731 INFO L274 CegarLoopResult]: For program point L351-2(lines 213 591) no Hoare annotation was computed. [2020-10-29 04:16:21,731 INFO L274 CegarLoopResult]: For program point L87(lines 87 95) no Hoare annotation was computed. [2020-10-29 04:16:21,731 INFO L274 CegarLoopResult]: For program point L87-1(lines 68 678) no Hoare annotation was computed. [2020-10-29 04:16:21,731 INFO L274 CegarLoopResult]: For program point L187(lines 187 602) no Hoare annotation was computed. [2020-10-29 04:16:21,731 INFO L274 CegarLoopResult]: For program point L154(lines 154 613) no Hoare annotation was computed. [2020-10-29 04:16:21,731 INFO L274 CegarLoopResult]: For program point L121(lines 121 624) no Hoare annotation was computed. [2020-10-29 04:16:21,731 INFO L274 CegarLoopResult]: For program point L88(lines 88 92) no Hoare annotation was computed. [2020-10-29 04:16:21,731 INFO L274 CegarLoopResult]: For program point L452(lines 452 457) no Hoare annotation was computed. [2020-10-29 04:16:21,732 INFO L274 CegarLoopResult]: For program point L221(lines 221 225) no Hoare annotation was computed. [2020-10-29 04:16:21,732 INFO L270 CegarLoopResult]: At program point L188(lines 184 603) the Hoare annotation is: (<= ssl3_accept_~blastFlag~0 2) [2020-10-29 04:16:21,732 INFO L270 CegarLoopResult]: At program point L155(lines 151 614) the Hoare annotation is: (<= ssl3_accept_~blastFlag~0 2) [2020-10-29 04:16:21,732 INFO L274 CegarLoopResult]: For program point L221-2(lines 213 591) no Hoare annotation was computed. [2020-10-29 04:16:21,732 INFO L274 CegarLoopResult]: For program point ssl3_acceptEXIT(lines 11 679) no Hoare annotation was computed. [2020-10-29 04:16:21,732 INFO L274 CegarLoopResult]: For program point L420(lines 420 424) no Hoare annotation was computed. [2020-10-29 04:16:21,732 INFO L274 CegarLoopResult]: For program point L190(lines 190 601) no Hoare annotation was computed. [2020-10-29 04:16:21,732 INFO L274 CegarLoopResult]: For program point L157(lines 157 612) no Hoare annotation was computed. [2020-10-29 04:16:21,732 INFO L274 CegarLoopResult]: For program point L124(lines 124 623) no Hoare annotation was computed. [2020-10-29 04:16:21,732 INFO L274 CegarLoopResult]: For program point L554(lines 554 558) no Hoare annotation was computed. [2020-10-29 04:16:21,732 INFO L274 CegarLoopResult]: For program point L488(lines 488 492) no Hoare annotation was computed. [2020-10-29 04:16:21,733 INFO L270 CegarLoopResult]: At program point L125(lines 121 624) the Hoare annotation is: (and (<= ssl3_accept_~s__state~0 8496) (<= ssl3_accept_~blastFlag~0 2)) [2020-10-29 04:16:21,733 INFO L274 CegarLoopResult]: For program point ssl3_acceptFINAL(lines 11 679) no Hoare annotation was computed. [2020-10-29 04:16:21,733 INFO L270 CegarLoopResult]: At program point L555(lines 68 678) the Hoare annotation is: false [2020-10-29 04:16:21,733 INFO L274 CegarLoopResult]: For program point L258(lines 258 272) no Hoare annotation was computed. [2020-10-29 04:16:21,733 INFO L274 CegarLoopResult]: For program point L259(lines 259 264) no Hoare annotation was computed. [2020-10-29 04:16:21,733 INFO L274 CegarLoopResult]: For program point L193(lines 193 600) no Hoare annotation was computed. [2020-10-29 04:16:21,733 INFO L274 CegarLoopResult]: For program point L160(lines 160 611) no Hoare annotation was computed. [2020-10-29 04:16:21,733 INFO L274 CegarLoopResult]: For program point L127(lines 127 622) no Hoare annotation was computed. [2020-10-29 04:16:21,733 INFO L274 CegarLoopResult]: For program point L359(lines 359 390) no Hoare annotation was computed. [2020-10-29 04:16:21,733 INFO L274 CegarLoopResult]: For program point L326(lines 326 330) no Hoare annotation was computed. [2020-10-29 04:16:21,733 INFO L274 CegarLoopResult]: For program point L326-2(lines 326 330) no Hoare annotation was computed. [2020-10-29 04:16:21,734 INFO L270 CegarLoopResult]: At program point L194(lines 190 601) the Hoare annotation is: (or (<= ssl3_accept_~blastFlag~0 2) (and (= ssl3_accept_~s__state~0 8640) (not (= ssl3_accept_~s__hit~0 0)) (= 8640 ssl3_accept_~s__s3__tmp__next_state___0~0))) [2020-10-29 04:16:21,734 INFO L270 CegarLoopResult]: At program point L161(lines 157 612) the Hoare annotation is: (<= ssl3_accept_~blastFlag~0 2) [2020-10-29 04:16:21,734 INFO L270 CegarLoopResult]: At program point L128(lines 127 622) the Hoare annotation is: (and (<= ssl3_accept_~s__state~0 8496) (<= ssl3_accept_~blastFlag~0 2)) [2020-10-29 04:16:21,734 INFO L274 CegarLoopResult]: For program point L525(lines 525 530) no Hoare annotation was computed. [2020-10-29 04:16:21,734 INFO L270 CegarLoopResult]: At program point L592(lines 103 660) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse2 (= 8640 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse3 (<= ssl3_accept_~s__state~0 8448)) (.cse1 (<= ssl3_accept_~blastFlag~0 3))) (or (and .cse0 (= ssl3_accept_~s__state~0 8656) .cse1) (and .cse1 (<= 8672 ssl3_accept_~s__state~0)) (and .cse0 .cse2 .cse3) (<= ssl3_accept_~blastFlag~0 2) (and (= ssl3_accept_~s__state~0 8640) .cse0 .cse2) (and .cse3 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)))) [2020-10-29 04:16:21,734 INFO L274 CegarLoopResult]: For program point L559(lines 559 563) no Hoare annotation was computed. [2020-10-29 04:16:21,734 INFO L274 CegarLoopResult]: For program point L295(lines 295 299) no Hoare annotation was computed. [2020-10-29 04:16:21,734 INFO L274 CegarLoopResult]: For program point L295-2(lines 213 591) no Hoare annotation was computed. [2020-10-29 04:16:21,734 INFO L274 CegarLoopResult]: For program point L196(lines 196 599) no Hoare annotation was computed. [2020-10-29 04:16:21,735 INFO L274 CegarLoopResult]: For program point L163(lines 163 610) no Hoare annotation was computed. [2020-10-29 04:16:21,735 INFO L274 CegarLoopResult]: For program point L130(lines 130 621) no Hoare annotation was computed. [2020-10-29 04:16:21,735 INFO L274 CegarLoopResult]: For program point L362(lines 362 389) no Hoare annotation was computed. [2020-10-29 04:16:21,735 INFO L274 CegarLoopResult]: For program point L362-1(lines 362 389) no Hoare annotation was computed. [2020-10-29 04:16:21,735 INFO L274 CegarLoopResult]: For program point L363(lines 363 386) no Hoare annotation was computed. [2020-10-29 04:16:21,735 INFO L277 CegarLoopResult]: At program point L661(lines 102 662) the Hoare annotation is: true [2020-10-29 04:16:21,735 INFO L274 CegarLoopResult]: For program point L199(lines 199 598) no Hoare annotation was computed. [2020-10-29 04:16:21,735 INFO L274 CegarLoopResult]: For program point L166(lines 166 609) no Hoare annotation was computed. [2020-10-29 04:16:21,735 INFO L274 CegarLoopResult]: For program point L133(lines 133 620) no Hoare annotation was computed. [2020-10-29 04:16:21,735 INFO L274 CegarLoopResult]: For program point L398(lines 398 429) no Hoare annotation was computed. [2020-10-29 04:16:21,735 INFO L274 CegarLoopResult]: For program point L233(lines 233 250) no Hoare annotation was computed. [2020-10-29 04:16:21,736 INFO L270 CegarLoopResult]: At program point L200(lines 196 599) the Hoare annotation is: (or (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 3)) (<= ssl3_accept_~blastFlag~0 2)) [2020-10-29 04:16:21,736 INFO L270 CegarLoopResult]: At program point L167(lines 163 610) the Hoare annotation is: (<= ssl3_accept_~blastFlag~0 2) [2020-10-29 04:16:21,736 INFO L274 CegarLoopResult]: For program point L233-2(lines 213 591) no Hoare annotation was computed. [2020-10-29 04:16:21,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:16:21 BoogieIcfgContainer [2020-10-29 04:16:21,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:16:21,761 INFO L168 Benchmark]: Toolchain (without parser) took 44087.27 ms. Allocated memory was 151.0 MB in the beginning and 978.3 MB in the end (delta: 827.3 MB). Free memory was 126.1 MB in the beginning and 486.5 MB in the end (delta: -360.4 MB). Peak memory consumption was 580.7 MB. Max. memory is 8.0 GB. [2020-10-29 04:16:21,762 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:16:21,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.61 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 110.6 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-29 04:16:21,763 INFO L168 Benchmark]: Boogie Preprocessor took 130.87 ms. Allocated memory is still 151.0 MB. Free memory was 110.6 MB in the beginning and 108.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 04:16:21,764 INFO L168 Benchmark]: RCFGBuilder took 1147.63 ms. Allocated memory is still 151.0 MB. Free memory was 107.9 MB in the beginning and 95.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. [2020-10-29 04:16:21,764 INFO L168 Benchmark]: TraceAbstraction took 42259.67 ms. Allocated memory was 151.0 MB in the beginning and 978.3 MB in the end (delta: 827.3 MB). Free memory was 95.3 MB in the beginning and 486.5 MB in the end (delta: -391.3 MB). Peak memory consumption was 548.8 MB. Max. memory is 8.0 GB. [2020-10-29 04:16:21,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 533.61 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 110.6 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 130.87 ms. Allocated memory is still 151.0 MB. Free memory was 110.6 MB in the beginning and 108.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1147.63 ms. Allocated memory is still 151.0 MB. Free memory was 107.9 MB in the beginning and 95.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42259.67 ms. Allocated memory was 151.0 MB in the beginning and 978.3 MB in the end (delta: 827.3 MB). Free memory was 95.3 MB in the beginning and 486.5 MB in the end (delta: -391.3 MB). Peak memory consumption was 548.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: ((((((!(s__hit == 0) && s__state == 8656) && blastFlag <= 3) || (blastFlag <= 3 && 8672 <= s__state)) || ((!(s__hit == 0) && 8640 == s__s3__tmp__next_state___0) && s__state <= 8448)) || blastFlag <= 2) || ((s__state == 8640 && !(s__hit == 0)) && 8640 == s__s3__tmp__next_state___0)) || ((s__state <= 8448 && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 3) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (s__state <= 8496 && blastFlag <= 2) || ((((4294967296 * ((ag_X * 2 + ag_Y * 2) / 4294967296) + 8656 <= 2 * ag_X + 2 * ag_Y && s__state <= 8496) && !(s__hit == 0)) && blastFlag <= 3) && 2 * ag_X + 2 * ag_Y <= 4294967296 * ((ag_X * 2 + ag_Y * 2) / 4294967296) + 8656) - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: ((blastFlag <= 2 && s__state <= 8448) || ((!(s__hit == 0) && 8640 == s__s3__tmp__next_state___0) && s__state <= 8448)) || ((s__state <= 8448 && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 3) - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: s__state <= 8496 && blastFlag <= 2 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: blastFlag <= 2 || ((s__state == 8640 && !(s__hit == 0)) && 8640 == s__s3__tmp__next_state___0) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: s__state <= 8512 && blastFlag <= 2 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: ((((((!(s__hit == 0) && s__state == 8656) && blastFlag <= 3) || (blastFlag <= 3 && 8672 <= s__state)) || ((!(s__hit == 0) && 8640 == s__s3__tmp__next_state___0) && s__state <= 8448)) || blastFlag <= 2) || ((s__state == 8640 && !(s__hit == 0)) && 8640 == s__s3__tmp__next_state___0)) || ((s__state <= 8448 && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 3) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: s__state <= 8496 && blastFlag <= 2 - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: (!(s__hit == 0) && blastFlag <= 3) || blastFlag <= 2 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: (s__state <= 8528 && blastFlag <= 2) || (!(s__hit == 0) && blastFlag <= 2) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: blastFlag <= 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 36.7s, OverallIterations: 14, TraceHistogramMax: 9, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3291 SDtfs, 4770 SDslu, 153 SDs, 0 SdLazy, 5397 SolverSat, 385 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8082occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 3866 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 47 PreInvPairs, 768 NumberOfFragments, 340 HoareAnnotationTreeSize, 47 FomulaSimplifications, 178462 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 34 FomulaSimplificationsInter, 13418 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.3s InterpolantComputationTime, 2308 NumberOfCodeBlocks, 2308 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2294 ConstructedInterpolants, 0 QuantifiedInterpolants, 2280258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 3607/3826 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 correct! Received shutdown request...