/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=DEEPEST --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 [2020-10-27 15:01:10,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:01:10,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:01:10,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:01:10,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:01:10,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:01:10,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:01:10,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:01:10,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:01:10,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:01:10,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:01:10,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:01:10,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:01:10,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:01:10,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:01:10,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:01:10,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:01:10,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:01:10,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:01:10,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:01:10,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:01:10,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:01:10,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:01:11,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:01:11,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:01:11,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:01:11,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:01:11,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:01:11,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:01:11,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:01:11,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:01:11,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:01:11,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:01:11,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:01:11,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:01:11,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:01:11,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:01:11,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:01:11,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:01:11,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:01:11,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:01:11,033 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 [2020-10-27 15:01:11,089 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:01:11,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:01:11,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:01:11,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:01:11,095 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:01:11,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:01:11,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:01:11,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:01:11,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:01:11,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:01:11,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:01:11,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:01:11,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:01:11,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:01:11,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:01:11,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:01:11,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:01:11,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:01:11,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:01:11,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:01:11,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:01:11,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:01:11,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:01:11,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:01:11,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:01:11,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:01:11,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:01:11,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:01:11,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:01:11,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:01:11,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:01:11,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:01:11,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:01:11,528 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:01:11,529 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:01:11,530 INFO L432 ainManager$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 [2020-10-27 15:01:11,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1985d2815/e4d141dc63324fccbbedbf9616bc67cd/FLAG192079691 [2020-10-27 15:01:12,209 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:01:12,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_srvr_2a.BV.c.cil.c [2020-10-27 15:01:12,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1985d2815/e4d141dc63324fccbbedbf9616bc67cd/FLAG192079691 [2020-10-27 15:01:12,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1985d2815/e4d141dc63324fccbbedbf9616bc67cd [2020-10-27 15:01:12,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:01:12,583 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:01:12,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:01:12,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:01:12,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:01:12,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:01:12" (1/1) ... [2020-10-27 15:01:12,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431ca9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:12, skipping insertion in model container [2020-10-27 15:01:12,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:01:12" (1/1) ... [2020-10-27 15:01:12,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:01:12,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:01:13,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:01:13,071 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:01:13,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:01:13,151 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:01:13,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:13 WrapperNode [2020-10-27 15:01:13,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:01:13,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:01:13,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:01:13,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:01:13,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:13" (1/1) ... [2020-10-27 15:01:13,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:13" (1/1) ... [2020-10-27 15:01:13,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:13" (1/1) ... [2020-10-27 15:01:13,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:13" (1/1) ... [2020-10-27 15:01:13,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:13" (1/1) ... [2020-10-27 15:01:13,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:13" (1/1) ... [2020-10-27 15:01:13,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:13" (1/1) ... [2020-10-27 15:01:13,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:01:13,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:01:13,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:01:13,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:01:13,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:13" (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 [2020-10-27 15:01:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:01:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:01:13,334 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:01:13,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-27 15:01:13,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:01:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:01:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:01:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:01:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:01:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-27 15:01:13,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:01:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 15:01:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-27 15:01:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:01:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:01:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:01:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:01:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:01:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:01:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:01:13,767 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 15:01:14,401 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-27 15:01:14,401 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-27 15:01:14,434 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:01:14,435 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:01:14,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:01:14 BoogieIcfgContainer [2020-10-27 15:01:14,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:01:14,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:01:14,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:01:14,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:01:14,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:01:12" (1/3) ... [2020-10-27 15:01:14,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53aad8bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:01:14, skipping insertion in model container [2020-10-27 15:01:14,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:13" (2/3) ... [2020-10-27 15:01:14,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53aad8bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:01:14, skipping insertion in model container [2020-10-27 15:01:14,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:01:14" (3/3) ... [2020-10-27 15:01:14,447 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a.BV.c.cil.c [2020-10-27 15:01:14,459 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:01:14,465 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:01:14,479 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:01:14,509 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:01:14,509 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:01:14,510 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:01:14,510 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:01:14,510 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:01:14,510 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:01:14,510 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:01:14,510 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:01:14,533 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-10-27 15:01:14,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 15:01:14,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:14,544 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] [2020-10-27 15:01:14,545 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:14,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:14,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2139538990, now seen corresponding path program 1 times [2020-10-27 15:01:14,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:14,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540529957] [2020-10-27 15:01:14,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:14,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:15,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:15,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:15,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:15,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-27 15:01:15,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:15,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-10-27 15:01:15,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 15:01:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 15:01:15,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:01:15,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:15,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:15,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:15,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:15,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:15,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:01:15,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:15,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:01:15,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:01:15,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540529957] [2020-10-27 15:01:15,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:15,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:15,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784080033] [2020-10-27 15:01:15,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:15,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:15,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:15,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:15,971 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 4 states. [2020-10-27 15:01:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:17,067 INFO L93 Difference]: Finished difference Result 399 states and 676 transitions. [2020-10-27 15:01:17,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:17,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-27 15:01:17,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:17,083 INFO L225 Difference]: With dead ends: 399 [2020-10-27 15:01:17,084 INFO L226 Difference]: Without dead ends: 225 [2020-10-27 15:01:17,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:17,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-10-27 15:01:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2020-10-27 15:01:17,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-27 15:01:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 338 transitions. [2020-10-27 15:01:17,165 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 338 transitions. Word has length 51 [2020-10-27 15:01:17,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:17,166 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 338 transitions. [2020-10-27 15:01:17,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 338 transitions. [2020-10-27 15:01:17,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-27 15:01:17,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:17,171 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] [2020-10-27 15:01:17,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:01:17,172 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:17,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:17,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1492737295, now seen corresponding path program 1 times [2020-10-27 15:01:17,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:17,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323300340] [2020-10-27 15:01:17,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:17,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:17,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:17,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 15:01:17,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:17,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-27 15:01:17,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 15:01:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 15:01:17,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:17,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:17,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:17,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:17,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:17,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:17,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:17,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:17,494 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:01:17,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323300340] [2020-10-27 15:01:17,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:17,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:17,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122499158] [2020-10-27 15:01:17,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:17,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:17,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:17,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:17,499 INFO L87 Difference]: Start difference. First operand 225 states and 338 transitions. Second operand 4 states. [2020-10-27 15:01:17,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:17,982 INFO L93 Difference]: Finished difference Result 436 states and 662 transitions. [2020-10-27 15:01:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:17,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-27 15:01:17,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:17,986 INFO L225 Difference]: With dead ends: 436 [2020-10-27 15:01:17,986 INFO L226 Difference]: Without dead ends: 329 [2020-10-27 15:01:17,988 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 [2020-10-27 15:01:17,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-10-27 15:01:18,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2020-10-27 15:01:18,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-10-27 15:01:18,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 496 transitions. [2020-10-27 15:01:18,036 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 496 transitions. Word has length 67 [2020-10-27 15:01:18,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:18,036 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 496 transitions. [2020-10-27 15:01:18,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:18,037 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 496 transitions. [2020-10-27 15:01:18,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 15:01:18,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:18,048 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] [2020-10-27 15:01:18,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:01:18,049 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:18,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:18,049 INFO L82 PathProgramCache]: Analyzing trace with hash -423864330, now seen corresponding path program 1 times [2020-10-27 15:01:18,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:18,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933623517] [2020-10-27 15:01:18,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:18,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:18,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:18,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:18,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:18,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 15:01:18,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:18,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-27 15:01:18,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:18,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:18,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:01:18,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 15:01:18,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:18,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:18,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:18,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:18,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:18,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:18,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:18,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:18,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:18,574 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 15:01:18,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933623517] [2020-10-27 15:01:18,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:18,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:18,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120826247] [2020-10-27 15:01:18,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:18,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:18,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:18,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:18,578 INFO L87 Difference]: Start difference. First operand 329 states and 496 transitions. Second operand 4 states. [2020-10-27 15:01:19,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:19,236 INFO L93 Difference]: Finished difference Result 782 states and 1206 transitions. [2020-10-27 15:01:19,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:19,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-27 15:01:19,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:19,240 INFO L225 Difference]: With dead ends: 782 [2020-10-27 15:01:19,241 INFO L226 Difference]: Without dead ends: 467 [2020-10-27 15:01:19,244 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 [2020-10-27 15:01:19,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-10-27 15:01:19,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 455. [2020-10-27 15:01:19,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-10-27 15:01:19,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 637 transitions. [2020-10-27 15:01:19,310 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 637 transitions. Word has length 88 [2020-10-27 15:01:19,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:19,311 INFO L481 AbstractCegarLoop]: Abstraction has 455 states and 637 transitions. [2020-10-27 15:01:19,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:19,314 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 637 transitions. [2020-10-27 15:01:19,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 15:01:19,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:19,320 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] [2020-10-27 15:01:19,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:01:19,320 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:19,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:19,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1321257608, now seen corresponding path program 1 times [2020-10-27 15:01:19,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:19,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805711117] [2020-10-27 15:01:19,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:19,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:19,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:19,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:19,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:19,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 15:01:19,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:19,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-27 15:01:19,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:01:19,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 15:01:19,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:19,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:19,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:19,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:19,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:19,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:19,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:19,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:19,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:19,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:19,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:19,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 15:01:19,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805711117] [2020-10-27 15:01:19,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:19,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:19,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309399692] [2020-10-27 15:01:19,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:19,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:19,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:19,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:19,854 INFO L87 Difference]: Start difference. First operand 455 states and 637 transitions. Second operand 4 states. [2020-10-27 15:01:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:20,447 INFO L93 Difference]: Finished difference Result 974 states and 1379 transitions. [2020-10-27 15:01:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:20,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-27 15:01:20,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:20,454 INFO L225 Difference]: With dead ends: 974 [2020-10-27 15:01:20,454 INFO L226 Difference]: Without dead ends: 533 [2020-10-27 15:01:20,457 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 [2020-10-27 15:01:20,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-10-27 15:01:20,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 524. [2020-10-27 15:01:20,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-27 15:01:20,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 721 transitions. [2020-10-27 15:01:20,502 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 721 transitions. Word has length 88 [2020-10-27 15:01:20,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:20,504 INFO L481 AbstractCegarLoop]: Abstraction has 524 states and 721 transitions. [2020-10-27 15:01:20,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:20,504 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 721 transitions. [2020-10-27 15:01:20,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-27 15:01:20,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:20,512 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:20,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:01:20,513 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:20,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:20,514 INFO L82 PathProgramCache]: Analyzing trace with hash 2040204426, now seen corresponding path program 1 times [2020-10-27 15:01:20,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:20,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107902856] [2020-10-27 15:01:20,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:20,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:20,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:20,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:20,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:20,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 15:01:20,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:20,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-27 15:01:20,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 15:01:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:01:20,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:01:20,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:20,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:20,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:20,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:20,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:20,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:20,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:20,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:20,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:20,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:20,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-27 15:01:20,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107902856] [2020-10-27 15:01:20,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:20,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:20,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803321275] [2020-10-27 15:01:20,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:20,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:20,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:20,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:20,991 INFO L87 Difference]: Start difference. First operand 524 states and 721 transitions. Second operand 4 states. [2020-10-27 15:01:21,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:21,551 INFO L93 Difference]: Finished difference Result 1199 states and 1712 transitions. [2020-10-27 15:01:21,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:21,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2020-10-27 15:01:21,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:21,558 INFO L225 Difference]: With dead ends: 1199 [2020-10-27 15:01:21,558 INFO L226 Difference]: Without dead ends: 653 [2020-10-27 15:01:21,560 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 [2020-10-27 15:01:21,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-10-27 15:01:21,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 617. [2020-10-27 15:01:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-10-27 15:01:21,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 862 transitions. [2020-10-27 15:01:21,601 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 862 transitions. Word has length 108 [2020-10-27 15:01:21,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:21,603 INFO L481 AbstractCegarLoop]: Abstraction has 617 states and 862 transitions. [2020-10-27 15:01:21,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 862 transitions. [2020-10-27 15:01:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-27 15:01:21,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:21,608 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-27 15:01:21,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:01:21,609 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:21,610 INFO L82 PathProgramCache]: Analyzing trace with hash -447723283, now seen corresponding path program 1 times [2020-10-27 15:01:21,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:21,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176529624] [2020-10-27 15:01:21,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:21,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:21,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:22,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:22,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:22,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:22,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-27 15:01:22,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:01:22,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1148 [2020-10-27 15:01:22,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 15:01:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:01:22,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:22,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:22,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:22,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:22,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:22,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:22,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:22,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:22,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:01:22,945 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-27 15:01:22,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176529624] [2020-10-27 15:01:22,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:22,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:22,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414275932] [2020-10-27 15:01:22,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:22,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:22,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:22,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:22,950 INFO L87 Difference]: Start difference. First operand 617 states and 862 transitions. Second operand 4 states. [2020-10-27 15:01:23,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:23,513 INFO L93 Difference]: Finished difference Result 1442 states and 2075 transitions. [2020-10-27 15:01:23,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:23,515 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 124 [2020-10-27 15:01:23,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:23,524 INFO L225 Difference]: With dead ends: 1442 [2020-10-27 15:01:23,524 INFO L226 Difference]: Without dead ends: 821 [2020-10-27 15:01:23,527 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 [2020-10-27 15:01:23,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2020-10-27 15:01:23,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 785. [2020-10-27 15:01:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-10-27 15:01:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1078 transitions. [2020-10-27 15:01:23,569 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1078 transitions. Word has length 124 [2020-10-27 15:01:23,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:23,569 INFO L481 AbstractCegarLoop]: Abstraction has 785 states and 1078 transitions. [2020-10-27 15:01:23,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:23,570 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1078 transitions. [2020-10-27 15:01:23,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 15:01:23,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:23,573 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] [2020-10-27 15:01:23,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:01:23,573 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:23,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:23,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1471882461, now seen corresponding path program 1 times [2020-10-27 15:01:23,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:23,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350005568] [2020-10-27 15:01:23,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:23,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:23,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:23,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-27 15:01:23,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:23,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-27 15:01:23,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:23,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:23,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-27 15:01:23,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 15:01:23,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:23,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:23,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:23,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:23,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:23,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:23,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:23,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:23,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:23,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:23,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:23,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:23,885 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-27 15:01:23,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350005568] [2020-10-27 15:01:23,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:23,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:23,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563032178] [2020-10-27 15:01:23,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:23,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:23,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:23,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:23,889 INFO L87 Difference]: Start difference. First operand 785 states and 1078 transitions. Second operand 4 states. [2020-10-27 15:01:24,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:24,351 INFO L93 Difference]: Finished difference Result 1044 states and 1435 transitions. [2020-10-27 15:01:24,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:24,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-10-27 15:01:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:24,360 INFO L225 Difference]: With dead ends: 1044 [2020-10-27 15:01:24,361 INFO L226 Difference]: Without dead ends: 1041 [2020-10-27 15:01:24,362 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 [2020-10-27 15:01:24,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2020-10-27 15:01:24,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2020-10-27 15:01:24,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-10-27 15:01:24,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1432 transitions. [2020-10-27 15:01:24,408 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1432 transitions. Word has length 128 [2020-10-27 15:01:24,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:24,408 INFO L481 AbstractCegarLoop]: Abstraction has 1041 states and 1432 transitions. [2020-10-27 15:01:24,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:24,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1432 transitions. [2020-10-27 15:01:24,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-27 15:01:24,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:24,413 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, 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, 1, 1, 1] [2020-10-27 15:01:24,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:01:24,413 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:24,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:24,414 INFO L82 PathProgramCache]: Analyzing trace with hash 2117192632, now seen corresponding path program 1 times [2020-10-27 15:01:24,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:24,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625347642] [2020-10-27 15:01:24,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:24,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:24,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:24,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:24,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-27 15:01:24,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:01:24,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-27 15:01:24,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:24,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:24,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-27 15:01:24,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 15:01:24,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:24,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:24,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:24,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:24,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:24,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:24,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:24,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:24,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-27 15:01:24,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625347642] [2020-10-27 15:01:24,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:24,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:24,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608786034] [2020-10-27 15:01:24,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:24,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:24,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:24,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:24,991 INFO L87 Difference]: Start difference. First operand 1041 states and 1432 transitions. Second operand 4 states. [2020-10-27 15:01:25,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:25,477 INFO L93 Difference]: Finished difference Result 2192 states and 3034 transitions. [2020-10-27 15:01:25,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:25,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 216 [2020-10-27 15:01:25,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:25,484 INFO L225 Difference]: With dead ends: 2192 [2020-10-27 15:01:25,484 INFO L226 Difference]: Without dead ends: 1165 [2020-10-27 15:01:25,487 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 [2020-10-27 15:01:25,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2020-10-27 15:01:25,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1141. [2020-10-27 15:01:25,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-27 15:01:25,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1552 transitions. [2020-10-27 15:01:25,536 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1552 transitions. Word has length 216 [2020-10-27 15:01:25,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:25,537 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1552 transitions. [2020-10-27 15:01:25,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:25,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1552 transitions. [2020-10-27 15:01:25,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-27 15:01:25,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:25,569 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, 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, 1, 1, 1, 1] [2020-10-27 15:01:25,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:01:25,569 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:25,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:25,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1197154601, now seen corresponding path program 1 times [2020-10-27 15:01:25,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:25,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649671439] [2020-10-27 15:01:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:25,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:25,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:25,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:26,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:26,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-27 15:01:26,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:26,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-27 15:01:26,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:26,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:26,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-27 15:01:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 15:01:26,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:26,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:26,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:26,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:26,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:26,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:26,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:01:26,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:26,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:26,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2020-10-27 15:01:26,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649671439] [2020-10-27 15:01:26,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:26,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:26,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381623158] [2020-10-27 15:01:26,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:26,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:26,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:26,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:26,257 INFO L87 Difference]: Start difference. First operand 1141 states and 1552 transitions. Second operand 4 states. [2020-10-27 15:01:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:26,762 INFO L93 Difference]: Finished difference Result 2268 states and 3086 transitions. [2020-10-27 15:01:26,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:26,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 220 [2020-10-27 15:01:26,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:26,770 INFO L225 Difference]: With dead ends: 2268 [2020-10-27 15:01:26,771 INFO L226 Difference]: Without dead ends: 1141 [2020-10-27 15:01:26,775 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 [2020-10-27 15:01:26,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2020-10-27 15:01:26,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1121. [2020-10-27 15:01:26,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-10-27 15:01:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1500 transitions. [2020-10-27 15:01:26,843 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1500 transitions. Word has length 220 [2020-10-27 15:01:26,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:26,844 INFO L481 AbstractCegarLoop]: Abstraction has 1121 states and 1500 transitions. [2020-10-27 15:01:26,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1500 transitions. [2020-10-27 15:01:26,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-27 15:01:26,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:26,854 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 15:01:26,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 15:01:26,854 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:26,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:26,855 INFO L82 PathProgramCache]: Analyzing trace with hash 444870138, now seen corresponding path program 1 times [2020-10-27 15:01:26,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:26,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083216494] [2020-10-27 15:01:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:26,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:26,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:27,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:27,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-27 15:01:27,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:01:27,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-27 15:01:27,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:27,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:27,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-27 15:01:27,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:01:27,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:27,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:27,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:27,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:27,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:27,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:27,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:27,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:27,511 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-10-27 15:01:27,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083216494] [2020-10-27 15:01:27,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:27,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:27,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842000448] [2020-10-27 15:01:27,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:27,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:27,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:27,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:27,513 INFO L87 Difference]: Start difference. First operand 1121 states and 1500 transitions. Second operand 4 states. [2020-10-27 15:01:27,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:27,960 INFO L93 Difference]: Finished difference Result 2332 states and 3134 transitions. [2020-10-27 15:01:27,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:27,961 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 236 [2020-10-27 15:01:27,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:27,967 INFO L225 Difference]: With dead ends: 2332 [2020-10-27 15:01:27,968 INFO L226 Difference]: Without dead ends: 1181 [2020-10-27 15:01:27,971 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 [2020-10-27 15:01:27,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2020-10-27 15:01:28,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1121. [2020-10-27 15:01:28,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-10-27 15:01:28,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1488 transitions. [2020-10-27 15:01:28,023 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1488 transitions. Word has length 236 [2020-10-27 15:01:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:28,024 INFO L481 AbstractCegarLoop]: Abstraction has 1121 states and 1488 transitions. [2020-10-27 15:01:28,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:28,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1488 transitions. [2020-10-27 15:01:28,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-27 15:01:28,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:28,030 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-27 15:01:28,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 15:01:28,030 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:28,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:28,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1618025887, now seen corresponding path program 1 times [2020-10-27 15:01:28,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:28,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960003813] [2020-10-27 15:01:28,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:28,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:28,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:28,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-27 15:01:28,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-27 15:01:28,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:28,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:28,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-27 15:01:28,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 15:01:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:28,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:28,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:28,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:28,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:28,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:28,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:28,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:28,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:28,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:28,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:28,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:28,373 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-10-27 15:01:28,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960003813] [2020-10-27 15:01:28,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:28,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:28,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034511951] [2020-10-27 15:01:28,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:28,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:28,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:28,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:28,376 INFO L87 Difference]: Start difference. First operand 1121 states and 1488 transitions. Second operand 4 states. [2020-10-27 15:01:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:28,953 INFO L93 Difference]: Finished difference Result 2400 states and 3218 transitions. [2020-10-27 15:01:28,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:28,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2020-10-27 15:01:28,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:28,961 INFO L225 Difference]: With dead ends: 2400 [2020-10-27 15:01:28,961 INFO L226 Difference]: Without dead ends: 1293 [2020-10-27 15:01:28,964 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 [2020-10-27 15:01:28,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2020-10-27 15:01:29,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1285. [2020-10-27 15:01:29,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1285 states. [2020-10-27 15:01:29,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1672 transitions. [2020-10-27 15:01:29,018 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1672 transitions. Word has length 238 [2020-10-27 15:01:29,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:29,018 INFO L481 AbstractCegarLoop]: Abstraction has 1285 states and 1672 transitions. [2020-10-27 15:01:29,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:29,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1672 transitions. [2020-10-27 15:01:29,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-27 15:01:29,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:29,024 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:29,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 15:01:29,025 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:29,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:29,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1921049238, now seen corresponding path program 1 times [2020-10-27 15:01:29,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:29,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885673215] [2020-10-27 15:01:29,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:29,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:29,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:31,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:31,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-27 15:01:31,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:01:31,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2255 [2020-10-27 15:01:31,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:31,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:31,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-27 15:01:31,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 15:01:31,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:31,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:31,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:31,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:31,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:31,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:31,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:31,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:31,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 15:01:31,534 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2020-10-27 15:01:31,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885673215] [2020-10-27 15:01:31,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:31,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:31,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547576347] [2020-10-27 15:01:31,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:31,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:31,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:31,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:31,537 INFO L87 Difference]: Start difference. First operand 1285 states and 1672 transitions. Second operand 4 states. [2020-10-27 15:01:32,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:32,046 INFO L93 Difference]: Finished difference Result 2692 states and 3514 transitions. [2020-10-27 15:01:32,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:32,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2020-10-27 15:01:32,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:32,054 INFO L225 Difference]: With dead ends: 2692 [2020-10-27 15:01:32,054 INFO L226 Difference]: Without dead ends: 1421 [2020-10-27 15:01:32,058 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 [2020-10-27 15:01:32,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2020-10-27 15:01:32,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1393. [2020-10-27 15:01:32,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1393 states. [2020-10-27 15:01:32,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1800 transitions. [2020-10-27 15:01:32,123 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1800 transitions. Word has length 244 [2020-10-27 15:01:32,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:32,124 INFO L481 AbstractCegarLoop]: Abstraction has 1393 states and 1800 transitions. [2020-10-27 15:01:32,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:32,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1800 transitions. [2020-10-27 15:01:32,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-27 15:01:32,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:32,130 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:32,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 15:01:32,131 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:32,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:32,131 INFO L82 PathProgramCache]: Analyzing trace with hash -911416261, now seen corresponding path program 1 times [2020-10-27 15:01:32,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:32,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542239667] [2020-10-27 15:01:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:32,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:32,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:35,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:35,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-27 15:01:35,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:01:35,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3793 [2020-10-27 15:01:35,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:35,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 15:01:35,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-27 15:01:35,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 15:01:35,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:36,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:36,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:36,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:36,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:36,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:36,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:36,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 425 proven. 16 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2020-10-27 15:01:36,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542239667] [2020-10-27 15:01:36,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:01:36,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:01:36,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628476520] [2020-10-27 15:01:36,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:01:36,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:36,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:01:36,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:36,124 INFO L87 Difference]: Start difference. First operand 1393 states and 1800 transitions. Second operand 5 states. [2020-10-27 15:01:37,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:37,289 INFO L93 Difference]: Finished difference Result 4617 states and 6095 transitions. [2020-10-27 15:01:37,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 15:01:37,289 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 251 [2020-10-27 15:01:37,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:37,307 INFO L225 Difference]: With dead ends: 4617 [2020-10-27 15:01:37,307 INFO L226 Difference]: Without dead ends: 3238 [2020-10-27 15:01:37,312 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 [2020-10-27 15:01:37,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2020-10-27 15:01:37,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 2601. [2020-10-27 15:01:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2601 states. [2020-10-27 15:01:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 3393 transitions. [2020-10-27 15:01:37,446 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 3393 transitions. Word has length 251 [2020-10-27 15:01:37,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:37,446 INFO L481 AbstractCegarLoop]: Abstraction has 2601 states and 3393 transitions. [2020-10-27 15:01:37,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:01:37,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 3393 transitions. [2020-10-27 15:01:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-27 15:01:37,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:37,455 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] [2020-10-27 15:01:37,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 15:01:37,456 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:37,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:37,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1775296396, now seen corresponding path program 1 times [2020-10-27 15:01:37,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:37,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977052805] [2020-10-27 15:01:37,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:37,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:37,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:37,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:37,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:37,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-27 15:01:37,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:37,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-10-27 15:01:37,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 15:01:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-27 15:01:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 15:01:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:38,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:38,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:38,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:38,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:38,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:38,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:38,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:38,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:38,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-10-27 15:01:38,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977052805] [2020-10-27 15:01:38,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:01:38,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:01:38,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388593697] [2020-10-27 15:01:38,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:01:38,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:38,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:01:38,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:38,182 INFO L87 Difference]: Start difference. First operand 2601 states and 3393 transitions. Second operand 5 states. [2020-10-27 15:01:39,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:39,097 INFO L93 Difference]: Finished difference Result 5744 states and 7520 transitions. [2020-10-27 15:01:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 15:01:39,097 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 260 [2020-10-27 15:01:39,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:39,111 INFO L225 Difference]: With dead ends: 5744 [2020-10-27 15:01:39,111 INFO L226 Difference]: Without dead ends: 2581 [2020-10-27 15:01:39,119 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 [2020-10-27 15:01:39,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2020-10-27 15:01:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 2561. [2020-10-27 15:01:39,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2561 states. [2020-10-27 15:01:39,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 3325 transitions. [2020-10-27 15:01:39,208 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 3325 transitions. Word has length 260 [2020-10-27 15:01:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:39,208 INFO L481 AbstractCegarLoop]: Abstraction has 2561 states and 3325 transitions. [2020-10-27 15:01:39,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:01:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 3325 transitions. [2020-10-27 15:01:39,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-27 15:01:39,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:39,219 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:39,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 15:01:39,220 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:39,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:39,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1711222604, now seen corresponding path program 1 times [2020-10-27 15:01:39,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:39,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401506173] [2020-10-27 15:01:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:39,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:40,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:40,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-27 15:01:40,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:01:40,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1513 [2020-10-27 15:01:40,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:40,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:40,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-27 15:01:40,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 15:01:40,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:40,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:40,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:40,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:40,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:40,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:40,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:40,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:40,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:40,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:40,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:40,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:40,926 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-10-27 15:01:40,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401506173] [2020-10-27 15:01:40,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:40,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:40,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308407781] [2020-10-27 15:01:40,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:40,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:40,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:40,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:40,929 INFO L87 Difference]: Start difference. First operand 2561 states and 3325 transitions. Second operand 4 states. [2020-10-27 15:01:41,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:41,459 INFO L93 Difference]: Finished difference Result 5196 states and 6788 transitions. [2020-10-27 15:01:41,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:41,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 267 [2020-10-27 15:01:41,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:41,473 INFO L225 Difference]: With dead ends: 5196 [2020-10-27 15:01:41,473 INFO L226 Difference]: Without dead ends: 2561 [2020-10-27 15:01:41,483 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 [2020-10-27 15:01:41,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2020-10-27 15:01:41,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2033. [2020-10-27 15:01:41,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2033 states. [2020-10-27 15:01:41,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2620 transitions. [2020-10-27 15:01:41,581 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2620 transitions. Word has length 267 [2020-10-27 15:01:41,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:41,582 INFO L481 AbstractCegarLoop]: Abstraction has 2033 states and 2620 transitions. [2020-10-27 15:01:41,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:41,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2620 transitions. [2020-10-27 15:01:41,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-27 15:01:41,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:41,591 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:41,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 15:01:41,591 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:41,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:41,592 INFO L82 PathProgramCache]: Analyzing trace with hash -250665495, now seen corresponding path program 1 times [2020-10-27 15:01:41,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:41,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928450392] [2020-10-27 15:01:41,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:41,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:41,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:41,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:41,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:42,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:42,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-27 15:01:42,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:01:42,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1337 [2020-10-27 15:01:42,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:42,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:42,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-27 15:01:42,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:01:42,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:43,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:43,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:43,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:43,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:43,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:43,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:43,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:43,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:43,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:43,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:43,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:43,096 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 448 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2020-10-27 15:01:43,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928450392] [2020-10-27 15:01:43,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:43,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:43,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486049231] [2020-10-27 15:01:43,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:43,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:43,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:43,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:43,101 INFO L87 Difference]: Start difference. First operand 2033 states and 2620 transitions. Second operand 4 states. [2020-10-27 15:01:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:43,586 INFO L93 Difference]: Finished difference Result 6045 states and 7775 transitions. [2020-10-27 15:01:43,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:43,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 299 [2020-10-27 15:01:43,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:43,605 INFO L225 Difference]: With dead ends: 6045 [2020-10-27 15:01:43,606 INFO L226 Difference]: Without dead ends: 4026 [2020-10-27 15:01:43,611 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 [2020-10-27 15:01:43,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4026 states. [2020-10-27 15:01:43,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4026 to 2037. [2020-10-27 15:01:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2037 states. [2020-10-27 15:01:43,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2624 transitions. [2020-10-27 15:01:43,710 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2624 transitions. Word has length 299 [2020-10-27 15:01:43,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:43,710 INFO L481 AbstractCegarLoop]: Abstraction has 2037 states and 2624 transitions. [2020-10-27 15:01:43,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:43,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2624 transitions. [2020-10-27 15:01:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-27 15:01:43,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:43,719 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:43,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 15:01:43,719 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:43,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:43,720 INFO L82 PathProgramCache]: Analyzing trace with hash 42845449, now seen corresponding path program 1 times [2020-10-27 15:01:43,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:43,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243028931] [2020-10-27 15:01:43,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:43,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:43,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:43,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:43,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:43,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:44,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:46,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:46,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-27 15:01:46,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 15:01:46,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2679 [2020-10-27 15:01:46,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-27 15:01:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:01:46,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:46,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:46,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:46,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:46,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:46,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:46,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:46,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:46,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:46,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:46,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:46,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 448 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2020-10-27 15:01:46,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243028931] [2020-10-27 15:01:46,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:46,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:46,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069759003] [2020-10-27 15:01:46,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:46,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:46,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:46,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:46,612 INFO L87 Difference]: Start difference. First operand 2037 states and 2624 transitions. Second operand 4 states. [2020-10-27 15:01:47,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:47,275 INFO L93 Difference]: Finished difference Result 6045 states and 7767 transitions. [2020-10-27 15:01:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:47,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 299 [2020-10-27 15:01:47,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:47,296 INFO L225 Difference]: With dead ends: 6045 [2020-10-27 15:01:47,296 INFO L226 Difference]: Without dead ends: 4022 [2020-10-27 15:01:47,303 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 [2020-10-27 15:01:47,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4022 states. [2020-10-27 15:01:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4022 to 2037. [2020-10-27 15:01:47,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2037 states. [2020-10-27 15:01:47,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2620 transitions. [2020-10-27 15:01:47,450 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2620 transitions. Word has length 299 [2020-10-27 15:01:47,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:47,451 INFO L481 AbstractCegarLoop]: Abstraction has 2037 states and 2620 transitions. [2020-10-27 15:01:47,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:47,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2620 transitions. [2020-10-27 15:01:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-27 15:01:47,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:47,460 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:47,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 15:01:47,461 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:47,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:47,461 INFO L82 PathProgramCache]: Analyzing trace with hash -380530073, now seen corresponding path program 1 times [2020-10-27 15:01:47,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:47,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252179324] [2020-10-27 15:01:47,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:47,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:47,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:47,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:48,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:48,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-27 15:01:48,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:48,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 642 [2020-10-27 15:01:48,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:48,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:48,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 15:01:48,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 15:01:48,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:48,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:48,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:48,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:48,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:48,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:48,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:48,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:48,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:48,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:48,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:48,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:48,325 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 592 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-27 15:01:48,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252179324] [2020-10-27 15:01:48,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:48,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:48,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805518395] [2020-10-27 15:01:48,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:48,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:48,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:48,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:48,327 INFO L87 Difference]: Start difference. First operand 2037 states and 2620 transitions. Second operand 4 states. [2020-10-27 15:01:48,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:48,975 INFO L93 Difference]: Finished difference Result 6073 states and 7811 transitions. [2020-10-27 15:01:48,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:48,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 299 [2020-10-27 15:01:48,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:48,987 INFO L225 Difference]: With dead ends: 6073 [2020-10-27 15:01:48,987 INFO L226 Difference]: Without dead ends: 4050 [2020-10-27 15:01:48,993 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 [2020-10-27 15:01:48,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4050 states. [2020-10-27 15:01:49,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4050 to 4049. [2020-10-27 15:01:49,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4049 states. [2020-10-27 15:01:49,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4049 states to 4049 states and 5200 transitions. [2020-10-27 15:01:49,186 INFO L78 Accepts]: Start accepts. Automaton has 4049 states and 5200 transitions. Word has length 299 [2020-10-27 15:01:49,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:49,186 INFO L481 AbstractCegarLoop]: Abstraction has 4049 states and 5200 transitions. [2020-10-27 15:01:49,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:49,186 INFO L276 IsEmpty]: Start isEmpty. Operand 4049 states and 5200 transitions. [2020-10-27 15:01:49,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-10-27 15:01:49,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:49,198 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:49,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 15:01:49,199 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:49,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:49,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1202985605, now seen corresponding path program 1 times [2020-10-27 15:01:49,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:49,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622666678] [2020-10-27 15:01:49,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:49,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:49,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:49,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:49,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 15:01:49,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:01:49,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-27 15:01:49,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:49,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:49,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:01:49,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-27 15:01:49,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:49,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:49,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:49,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:49,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:49,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:49,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:49,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:49,749 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 538 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2020-10-27 15:01:49,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622666678] [2020-10-27 15:01:49,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:49,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:49,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698031813] [2020-10-27 15:01:49,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:49,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:49,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:49,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:49,752 INFO L87 Difference]: Start difference. First operand 4049 states and 5200 transitions. Second operand 4 states. [2020-10-27 15:01:50,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:50,458 INFO L93 Difference]: Finished difference Result 11901 states and 15307 transitions. [2020-10-27 15:01:50,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:50,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 300 [2020-10-27 15:01:50,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:50,476 INFO L225 Difference]: With dead ends: 11901 [2020-10-27 15:01:50,476 INFO L226 Difference]: Without dead ends: 7244 [2020-10-27 15:01:50,486 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 [2020-10-27 15:01:50,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7244 states. [2020-10-27 15:01:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7244 to 7139. [2020-10-27 15:01:50,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7139 states. [2020-10-27 15:01:50,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7139 states to 7139 states and 9255 transitions. [2020-10-27 15:01:50,812 INFO L78 Accepts]: Start accepts. Automaton has 7139 states and 9255 transitions. Word has length 300 [2020-10-27 15:01:50,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:50,813 INFO L481 AbstractCegarLoop]: Abstraction has 7139 states and 9255 transitions. [2020-10-27 15:01:50,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:50,813 INFO L276 IsEmpty]: Start isEmpty. Operand 7139 states and 9255 transitions. [2020-10-27 15:01:50,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-27 15:01:50,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:50,830 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-27 15:01:50,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 15:01:50,830 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:50,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:50,831 INFO L82 PathProgramCache]: Analyzing trace with hash -84436936, now seen corresponding path program 1 times [2020-10-27 15:01:50,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:50,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3617957] [2020-10-27 15:01:50,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:50,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:51,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:51,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-27 15:01:51,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:51,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-27 15:01:51,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 15:01:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-27 15:01:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-27 15:01:51,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:51,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:51,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:51,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:51,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:51,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:51,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:51,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:51,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:51,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:51,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:51,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 654 proven. 26 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2020-10-27 15:01:51,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3617957] [2020-10-27 15:01:51,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:01:51,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:01:51,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256154636] [2020-10-27 15:01:51,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:01:51,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:51,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:01:51,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:51,194 INFO L87 Difference]: Start difference. First operand 7139 states and 9255 transitions. Second operand 5 states. [2020-10-27 15:01:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:52,354 INFO L93 Difference]: Finished difference Result 14232 states and 18351 transitions. [2020-10-27 15:01:52,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 15:01:52,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2020-10-27 15:01:52,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:52,374 INFO L225 Difference]: With dead ends: 14232 [2020-10-27 15:01:52,374 INFO L226 Difference]: Without dead ends: 4921 [2020-10-27 15:01:52,390 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 [2020-10-27 15:01:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4921 states. [2020-10-27 15:01:52,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4921 to 3308. [2020-10-27 15:01:52,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3308 states. [2020-10-27 15:01:52,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3308 states to 3308 states and 4303 transitions. [2020-10-27 15:01:52,553 INFO L78 Accepts]: Start accepts. Automaton has 3308 states and 4303 transitions. Word has length 308 [2020-10-27 15:01:52,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:52,553 INFO L481 AbstractCegarLoop]: Abstraction has 3308 states and 4303 transitions. [2020-10-27 15:01:52,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:01:52,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3308 states and 4303 transitions. [2020-10-27 15:01:52,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-27 15:01:52,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:52,563 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 10, 10, 8, 8, 6, 6, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:52,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 15:01:52,563 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:52,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:52,564 INFO L82 PathProgramCache]: Analyzing trace with hash 425907097, now seen corresponding path program 1 times [2020-10-27 15:01:52,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:52,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757795387] [2020-10-27 15:01:52,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:52,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:52,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:52,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:53,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:53,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-27 15:01:53,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:53,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-10-27 15:01:53,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:53,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 15:01:53,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 300 [2020-10-27 15:01:53,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 15:01:53,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:53,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:53,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:53,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:53,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:53,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:53,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:53,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:53,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:53,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1604 backedges. 463 proven. 26 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2020-10-27 15:01:53,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757795387] [2020-10-27 15:01:53,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:01:53,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:01:53,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085527627] [2020-10-27 15:01:53,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:01:53,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:53,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:01:53,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:53,320 INFO L87 Difference]: Start difference. First operand 3308 states and 4303 transitions. Second operand 5 states. [2020-10-27 15:01:54,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:54,365 INFO L93 Difference]: Finished difference Result 8153 states and 10697 transitions. [2020-10-27 15:01:54,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 15:01:54,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 362 [2020-10-27 15:01:54,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:54,380 INFO L225 Difference]: With dead ends: 8153 [2020-10-27 15:01:54,381 INFO L226 Difference]: Without dead ends: 4803 [2020-10-27 15:01:54,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-27 15:01:54,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4803 states. [2020-10-27 15:01:54,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4803 to 4016. [2020-10-27 15:01:54,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4016 states. [2020-10-27 15:01:54,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4016 states to 4016 states and 5293 transitions. [2020-10-27 15:01:54,571 INFO L78 Accepts]: Start accepts. Automaton has 4016 states and 5293 transitions. Word has length 362 [2020-10-27 15:01:54,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:54,572 INFO L481 AbstractCegarLoop]: Abstraction has 4016 states and 5293 transitions. [2020-10-27 15:01:54,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:01:54,572 INFO L276 IsEmpty]: Start isEmpty. Operand 4016 states and 5293 transitions. [2020-10-27 15:01:54,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-27 15:01:54,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:54,582 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 13, 11, 11, 9, 9, 7, 7, 5, 5, 5, 5, 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, 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] [2020-10-27 15:01:54,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 15:01:54,583 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:54,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:54,583 INFO L82 PathProgramCache]: Analyzing trace with hash 452862644, now seen corresponding path program 1 times [2020-10-27 15:01:54,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:54,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961138480] [2020-10-27 15:01:54,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:54,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:54,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:54,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:55,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:55,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-10-27 15:01:55,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:55,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 524 [2020-10-27 15:01:55,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-27 15:01:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 15:01:55,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:55,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:55,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:55,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:55,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:55,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:55,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:55,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:55,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 1607 trivial. 0 not checked. [2020-10-27 15:01:55,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961138480] [2020-10-27 15:01:55,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:55,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:55,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419562619] [2020-10-27 15:01:55,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:55,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:55,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:55,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:55,413 INFO L87 Difference]: Start difference. First operand 4016 states and 5293 transitions. Second operand 4 states. [2020-10-27 15:01:56,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:56,025 INFO L93 Difference]: Finished difference Result 8666 states and 11360 transitions. [2020-10-27 15:01:56,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:56,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 393 [2020-10-27 15:01:56,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:56,038 INFO L225 Difference]: With dead ends: 8666 [2020-10-27 15:01:56,038 INFO L226 Difference]: Without dead ends: 4664 [2020-10-27 15:01:56,046 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 [2020-10-27 15:01:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4664 states. [2020-10-27 15:01:56,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4664 to 4628. [2020-10-27 15:01:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4628 states. [2020-10-27 15:01:56,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 5995 transitions. [2020-10-27 15:01:56,234 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 5995 transitions. Word has length 393 [2020-10-27 15:01:56,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:56,234 INFO L481 AbstractCegarLoop]: Abstraction has 4628 states and 5995 transitions. [2020-10-27 15:01:56,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:56,235 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 5995 transitions. [2020-10-27 15:01:56,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2020-10-27 15:01:56,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:56,250 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 13, 11, 11, 9, 9, 7, 7, 5, 5, 5, 5, 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, 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] [2020-10-27 15:01:56,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 15:01:56,250 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:56,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:56,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1908368839, now seen corresponding path program 2 times [2020-10-27 15:01:56,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:56,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381633369] [2020-10-27 15:01:56,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:56,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:56,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:56,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:56,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:57,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:58,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:58,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 420 [2020-10-27 15:01:58,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:01:58,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1780 [2020-10-27 15:01:58,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:01:58,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-10-27 15:01:58,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-27 15:01:58,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:58,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:58,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:58,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:58,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:58,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:58,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:01:58,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:58,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:58,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:58,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:58,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:59,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2118 backedges. 1150 proven. 239 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2020-10-27 15:01:59,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381633369] [2020-10-27 15:01:59,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:01:59,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:01:59,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584348237] [2020-10-27 15:01:59,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:01:59,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:59,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:01:59,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:01:59,020 INFO L87 Difference]: Start difference. First operand 4628 states and 5995 transitions. Second operand 6 states. [2020-10-27 15:02:01,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:02:01,489 INFO L93 Difference]: Finished difference Result 12552 states and 16199 transitions. [2020-10-27 15:02:01,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 15:02:01,490 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 410 [2020-10-27 15:02:01,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:02:01,510 INFO L225 Difference]: With dead ends: 12552 [2020-10-27 15:02:01,510 INFO L226 Difference]: Without dead ends: 7923 [2020-10-27 15:02:01,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-27 15:02:01,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7923 states. [2020-10-27 15:02:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7923 to 7276. [2020-10-27 15:02:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7276 states. [2020-10-27 15:02:01,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7276 states to 7276 states and 9168 transitions. [2020-10-27 15:02:01,826 INFO L78 Accepts]: Start accepts. Automaton has 7276 states and 9168 transitions. Word has length 410 [2020-10-27 15:02:01,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:02:01,827 INFO L481 AbstractCegarLoop]: Abstraction has 7276 states and 9168 transitions. [2020-10-27 15:02:01,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:02:01,827 INFO L276 IsEmpty]: Start isEmpty. Operand 7276 states and 9168 transitions. [2020-10-27 15:02:01,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2020-10-27 15:02:01,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:02:01,851 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 14, 12, 12, 10, 10, 8, 8, 6, 6, 6, 6, 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, 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] [2020-10-27 15:02:01,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 15:02:01,851 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:02:01,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:02:01,852 INFO L82 PathProgramCache]: Analyzing trace with hash -10838439, now seen corresponding path program 1 times [2020-10-27 15:02:01,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:02:01,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620940113] [2020-10-27 15:02:01,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:02:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:02:01,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:01,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:02,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:02,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:02:02,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 434 [2020-10-27 15:02:02,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:02:02,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-27 15:02:02,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:02:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:02:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 390 [2020-10-27 15:02:02,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:02:02,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:02:02,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:02:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:02:02,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:02,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:02:02,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:02:02,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:02:02,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:02:02,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:02:02,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:02:02,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:02:02,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:02:02,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:02:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2020-10-27 15:02:02,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620940113] [2020-10-27 15:02:02,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:02:02,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:02:02,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824689506] [2020-10-27 15:02:02,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:02:02,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:02:02,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:02:02,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:02:02,510 INFO L87 Difference]: Start difference. First operand 7276 states and 9168 transitions. Second operand 4 states. [2020-10-27 15:02:03,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:02:03,118 INFO L93 Difference]: Finished difference Result 7458 states and 9380 transitions. [2020-10-27 15:02:03,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:02:03,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 424 [2020-10-27 15:02:03,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:02:03,134 INFO L225 Difference]: With dead ends: 7458 [2020-10-27 15:02:03,135 INFO L226 Difference]: Without dead ends: 7311 [2020-10-27 15:02:03,138 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 [2020-10-27 15:02:03,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7311 states. [2020-10-27 15:02:03,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7311 to 7275. [2020-10-27 15:02:03,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7275 states. [2020-10-27 15:02:03,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7275 states to 7275 states and 9165 transitions. [2020-10-27 15:02:03,485 INFO L78 Accepts]: Start accepts. Automaton has 7275 states and 9165 transitions. Word has length 424 [2020-10-27 15:02:03,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:02:03,486 INFO L481 AbstractCegarLoop]: Abstraction has 7275 states and 9165 transitions. [2020-10-27 15:02:03,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:02:03,486 INFO L276 IsEmpty]: Start isEmpty. Operand 7275 states and 9165 transitions. [2020-10-27 15:02:03,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-27 15:02:03,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:02:03,502 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 15, 13, 13, 11, 11, 9, 9, 7, 7, 7, 7, 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, 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] [2020-10-27 15:02:03,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 15:02:03,503 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:02:03,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:02:03,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1418443857, now seen corresponding path program 1 times [2020-10-27 15:02:03,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:02:03,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261572619] [2020-10-27 15:02:03,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:02:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:02:03,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:03,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:03,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:04,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:02:04,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 467 [2020-10-27 15:02:04,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:02:04,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-27 15:02:04,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:02:04,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:02:04,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 423 [2020-10-27 15:02:04,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:02:04,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:02:04,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:02:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:02:04,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:04,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:02:04,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:02:04,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:02:04,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:02:04,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:02:04,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:02:04,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:02:04,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:02:04,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:02:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2548 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 2204 trivial. 0 not checked. [2020-10-27 15:02:04,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261572619] [2020-10-27 15:02:04,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:02:04,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:02:04,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221278643] [2020-10-27 15:02:04,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:02:04,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:02:04,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:02:04,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:02:04,347 INFO L87 Difference]: Start difference. First operand 7275 states and 9165 transitions. Second operand 4 states. [2020-10-27 15:02:04,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:02:04,947 INFO L93 Difference]: Finished difference Result 7410 states and 9317 transitions. [2020-10-27 15:02:04,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:02:04,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 457 [2020-10-27 15:02:04,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:02:04,965 INFO L225 Difference]: With dead ends: 7410 [2020-10-27 15:02:04,965 INFO L226 Difference]: Without dead ends: 7308 [2020-10-27 15:02:04,968 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 [2020-10-27 15:02:04,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7308 states. [2020-10-27 15:02:05,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7308 to 7272. [2020-10-27 15:02:05,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7272 states. [2020-10-27 15:02:05,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7272 states to 7272 states and 9158 transitions. [2020-10-27 15:02:05,367 INFO L78 Accepts]: Start accepts. Automaton has 7272 states and 9158 transitions. Word has length 457 [2020-10-27 15:02:05,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:02:05,367 INFO L481 AbstractCegarLoop]: Abstraction has 7272 states and 9158 transitions. [2020-10-27 15:02:05,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:02:05,368 INFO L276 IsEmpty]: Start isEmpty. Operand 7272 states and 9158 transitions. [2020-10-27 15:02:05,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2020-10-27 15:02:05,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:02:05,384 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 15, 13, 13, 11, 11, 9, 9, 7, 7, 7, 7, 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, 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] [2020-10-27 15:02:05,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 15:02:05,385 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:02:05,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:02:05,385 INFO L82 PathProgramCache]: Analyzing trace with hash -292939151, now seen corresponding path program 1 times [2020-10-27 15:02:05,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:02:05,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423628415] [2020-10-27 15:02:05,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:02:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:02:05,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:05,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:05,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:05,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:06,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:07,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:07,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:07,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:08,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:10,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:02:10,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 488 [2020-10-27 15:02:10,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 15:02:10,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 15:02:10,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:02:10,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 15:02:10,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 244 [2020-10-27 15:02:10,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 15:02:10,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:02:10,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:02:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:02:10,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:10,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:02:10,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:02:10,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:02:10,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:02:10,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:02:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:02:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:02:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:02:10,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:02:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2978 backedges. 1838 proven. 12 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2020-10-27 15:02:10,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423628415] [2020-10-27 15:02:10,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:02:10,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:02:10,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524911683] [2020-10-27 15:02:10,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:02:10,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:02:10,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:02:10,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:02:10,832 INFO L87 Difference]: Start difference. First operand 7272 states and 9158 transitions. Second operand 5 states. [2020-10-27 15:02:11,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:02:11,736 INFO L93 Difference]: Finished difference Result 12170 states and 15208 transitions. [2020-10-27 15:02:11,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:02:11,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 478 [2020-10-27 15:02:11,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:02:11,748 INFO L225 Difference]: With dead ends: 12170 [2020-10-27 15:02:11,748 INFO L226 Difference]: Without dead ends: 4922 [2020-10-27 15:02:11,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:02:11,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4922 states. [2020-10-27 15:02:12,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4922 to 4922. [2020-10-27 15:02:12,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4922 states. [2020-10-27 15:02:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4922 states to 4922 states and 6102 transitions. [2020-10-27 15:02:12,016 INFO L78 Accepts]: Start accepts. Automaton has 4922 states and 6102 transitions. Word has length 478 [2020-10-27 15:02:12,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:02:12,016 INFO L481 AbstractCegarLoop]: Abstraction has 4922 states and 6102 transitions. [2020-10-27 15:02:12,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:02:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 4922 states and 6102 transitions. [2020-10-27 15:02:12,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2020-10-27 15:02:12,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:02:12,036 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 17, 15, 15, 13, 13, 11, 11, 9, 9, 9, 9, 7, 5, 5, 4, 4, 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, 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] [2020-10-27 15:02:12,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 15:02:12,036 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:02:12,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:02:12,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1781163049, now seen corresponding path program 1 times [2020-10-27 15:02:12,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:02:12,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275237940] [2020-10-27 15:02:12,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:02:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:02:12,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:12,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:02:12,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 544 [2020-10-27 15:02:12,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:02:12,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-27 15:02:12,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:02:12,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:02:12,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 15:02:12,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-27 15:02:12,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:02:12,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:02:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:02:12,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:02:12,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:02:12,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:02:12,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:02:12,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:02:12,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:02:12,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:02:12,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:02:12,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:02:12,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:02:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3337 backedges. 1877 proven. 0 refuted. 0 times theorem prover too weak. 1460 trivial. 0 not checked. [2020-10-27 15:02:12,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275237940] [2020-10-27 15:02:12,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:02:12,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:02:12,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243720748] [2020-10-27 15:02:12,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:02:12,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:02:12,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:02:12,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:02:12,635 INFO L87 Difference]: Start difference. First operand 4922 states and 6102 transitions. Second operand 4 states. [2020-10-27 15:02:12,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:02:12,801 INFO L93 Difference]: Finished difference Result 6198 states and 7670 transitions. [2020-10-27 15:02:12,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:02:12,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 534 [2020-10-27 15:02:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:02:12,803 INFO L225 Difference]: With dead ends: 6198 [2020-10-27 15:02:12,803 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 15:02:12,813 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 [2020-10-27 15:02:12,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 15:02:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 15:02:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 15:02:12,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 15:02:12,814 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 534 [2020-10-27 15:02:12,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:02:12,814 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 15:02:12,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:02:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 15:02:12,814 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 15:02:12,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-27 15:02:12,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 15:02:13,392 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 170 [2020-10-27 15:02:13,560 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 88 [2020-10-27 15:02:16,970 WARN L193 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 836 DAG size of output: 486 [2020-10-27 15:02:17,139 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 155 [2020-10-27 15:02:17,399 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 129 [2020-10-27 15:02:17,587 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 170 [2020-10-27 15:02:17,710 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 155 [2020-10-27 15:02:17,839 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 170 [2020-10-27 15:02:17,969 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 142 [2020-10-27 15:02:20,179 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 836 DAG size of output: 486 [2020-10-27 15:02:20,292 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 149 [2020-10-27 15:02:20,414 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 168 [2020-10-27 15:02:20,650 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 143 [2020-10-27 15:02:20,772 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 155 [2020-10-27 15:02:21,305 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 18 [2020-10-27 15:02:21,458 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 7 [2020-10-27 15:02:25,731 WARN L193 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 432 DAG size of output: 75 [2020-10-27 15:02:26,132 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 18 [2020-10-27 15:02:26,240 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 14 [2020-10-27 15:02:26,461 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 18 [2020-10-27 15:02:26,906 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 31 [2020-10-27 15:02:27,305 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 18 [2020-10-27 15:02:27,820 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 18 [2020-10-27 15:02:28,092 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 17 [2020-10-27 15:02:28,499 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 32 [2020-10-27 15:02:32,671 WARN L193 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 432 DAG size of output: 75 [2020-10-27 15:02:33,053 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 22 [2020-10-27 15:02:33,659 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 18 [2020-10-27 15:02:34,017 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 20 [2020-10-27 15:02:34,226 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 15 [2020-10-27 15:02:34,571 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 18 [2020-10-27 15:02:34,987 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 21 [2020-10-27 15:02:34,992 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 15:02:34,992 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 15:02:34,992 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 15:02:34,993 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 15:02:34,993 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:02:34,993 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|)) [2020-10-27 15:02:34,993 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:02:34,993 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:02:34,993 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 15:02:34,993 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 15:02:34,993 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:02:34,994 INFO L277 CegarLoopResult]: At program point L687(line 687) the Hoare annotation is: true [2020-10-27 15:02:34,994 INFO L274 CegarLoopResult]: For program point L687-1(line 687) no Hoare annotation was computed. [2020-10-27 15:02:34,994 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 680 691) the Hoare annotation is: true [2020-10-27 15:02:34,994 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 680 691) no Hoare annotation was computed. [2020-10-27 15:02:34,994 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 680 691) no Hoare annotation was computed. [2020-10-27 15:02:34,994 INFO L274 CegarLoopResult]: For program point L630(lines 630 658) no Hoare annotation was computed. [2020-10-27 15:02:34,994 INFO L274 CegarLoopResult]: For program point L399(lines 399 405) no Hoare annotation was computed. [2020-10-27 15:02:34,994 INFO L274 CegarLoopResult]: For program point L366(lines 366 385) no Hoare annotation was computed. [2020-10-27 15:02:34,994 INFO L274 CegarLoopResult]: For program point L631(lines 631 655) no Hoare annotation was computed. [2020-10-27 15:02:34,995 INFO L274 CegarLoopResult]: For program point L565(lines 565 569) no Hoare annotation was computed. [2020-10-27 15:02:34,995 INFO L274 CegarLoopResult]: For program point L532(lines 532 536) no Hoare annotation was computed. [2020-10-27 15:02:34,995 INFO L274 CegarLoopResult]: For program point L499(lines 499 503) no Hoare annotation was computed. [2020-10-27 15:02:34,995 INFO L274 CegarLoopResult]: For program point L565-2(lines 565 569) no Hoare annotation was computed. [2020-10-27 15:02:34,995 INFO L274 CegarLoopResult]: For program point L532-2(lines 213 591) no Hoare annotation was computed. [2020-10-27 15:02:34,995 INFO L274 CegarLoopResult]: For program point L367(lines 367 371) no Hoare annotation was computed. [2020-10-27 15:02:34,995 INFO L274 CegarLoopResult]: For program point L367-2(lines 366 383) no Hoare annotation was computed. [2020-10-27 15:02:34,995 INFO L274 CegarLoopResult]: For program point L235(lines 235 240) no Hoare annotation was computed. [2020-10-27 15:02:34,995 INFO L274 CegarLoopResult]: For program point L202(lines 202 597) no Hoare annotation was computed. [2020-10-27 15:02:34,995 INFO L274 CegarLoopResult]: For program point L169(lines 169 608) no Hoare annotation was computed. [2020-10-27 15:02:34,996 INFO L274 CegarLoopResult]: For program point L136(lines 136 619) no Hoare annotation was computed. [2020-10-27 15:02:34,996 INFO L270 CegarLoopResult]: At program point L103-2(lines 103 660) the Hoare annotation is: (let ((.cse1 (<= 8576 ssl3_accept_~s__state~0)) (.cse10 (<= 8640 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse11 (<= 8640 ssl3_accept_~s__state~0)) (.cse7 (<= 8482 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse8 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8482)) (.cse6 (<= ssl3_accept_~s__state~0 8448)) (.cse3 (<= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse4 (<= ssl3_accept_~blastFlag~0 3)) (.cse5 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (.cse0 (= ssl3_accept_~s__hit~0 0)) (.cse2 (<= ssl3_accept_~blastFlag~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= ssl3_accept_~s__state~0 8608)) (and .cse4 (<= 8672 ssl3_accept_~s__state~0)) (and .cse0 .cse2 (<= ssl3_accept_~s__state~0 8466) (<= 8466 ssl3_accept_~s__state~0) .cse3 .cse5) (and .cse0 .cse6 .cse7 .cse8 .cse4) (and .cse0 (let ((.cse9 (+ (* ssl3_accept_~ag_X~0 2) (* ssl3_accept_~ag_Y~0 2)))) (= .cse9 (+ (* (div .cse9 4294967296) 4294967296) ssl3_accept_~s__state~0))) .cse2 .cse3 .cse5) (and (<= ssl3_accept_~s__state~0 8560) .cse0 .cse2 (<= 8528 ssl3_accept_~s__state~0)) (and .cse6 (= 3 ssl3_accept_~s__s3__tmp__next_state___0~0)) (<= ssl3_accept_~blastFlag~0 1) (and .cse10 .cse6 .cse3 .cse4) (and (= ssl3_accept_~s__state~0 8656) .cse4) (and .cse11 .cse1 .cse10 .cse3 .cse4) (and .cse0 .cse11 .cse4) (and (<= ssl3_accept_~s__state~0 8482) .cse0 (< 8481 ssl3_accept_~s__state~0) .cse7 .cse8 .cse4) (and .cse0 .cse2 .cse6 .cse3 .cse4 .cse5) (and (= ssl3_accept_~s__state~0 8512) .cse0 .cse2) (= ssl3_accept_~s__state~0 3))) [2020-10-27 15:02:34,996 INFO L274 CegarLoopResult]: For program point L665(lines 665 669) no Hoare annotation was computed. [2020-10-27 15:02:34,996 INFO L274 CegarLoopResult]: For program point L632(lines 632 641) no Hoare annotation was computed. [2020-10-27 15:02:34,996 INFO L274 CegarLoopResult]: For program point L665-2(lines 665 669) no Hoare annotation was computed. [2020-10-27 15:02:34,996 INFO L274 CegarLoopResult]: For program point L632-2(lines 631 653) no Hoare annotation was computed. [2020-10-27 15:02:34,996 INFO L274 CegarLoopResult]: For program point L467(lines 467 471) no Hoare annotation was computed. [2020-10-27 15:02:34,997 INFO L274 CegarLoopResult]: For program point L335-1(lines 335 344) no Hoare annotation was computed. [2020-10-27 15:02:34,997 INFO L270 CegarLoopResult]: At program point L170(lines 169 608) the Hoare annotation is: (let ((.cse1 (<= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse3 (= ssl3_accept_~s__hit~0 0)) (.cse0 (<= ssl3_accept_~s__state~0 8448)) (.cse2 (<= ssl3_accept_~blastFlag~0 3))) (or (and (<= ssl3_accept_~blastFlag~0 1) .cse0) (and (<= 8640 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse0 .cse1 .cse2) (and .cse3 (<= ssl3_accept_~blastFlag~0 2) .cse0 .cse1 .cse2 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (and .cse0 (= 3 ssl3_accept_~s__s3__tmp__next_state___0~0)) (and .cse3 .cse0 (<= 8482 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse2 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8482)))) [2020-10-27 15:02:34,997 INFO L270 CegarLoopResult]: At program point L137(lines 130 621) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8466))) (or (and (= ssl3_accept_~s__hit~0 0) (<= ssl3_accept_~blastFlag~0 2) .cse0 (<= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (and (<= ssl3_accept_~blastFlag~0 1) .cse0))) [2020-10-27 15:02:34,997 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-10-27 15:02:34,997 INFO L274 CegarLoopResult]: For program point L634(lines 634 638) no Hoare annotation was computed. [2020-10-27 15:02:34,997 INFO L274 CegarLoopResult]: For program point L205(lines 205 596) no Hoare annotation was computed. [2020-10-27 15:02:34,997 INFO L274 CegarLoopResult]: For program point L172(lines 172 607) no Hoare annotation was computed. [2020-10-27 15:02:34,999 INFO L274 CegarLoopResult]: For program point L139(lines 139 618) no Hoare annotation was computed. [2020-10-27 15:02:34,999 INFO L274 CegarLoopResult]: For program point L106(lines 106 629) no Hoare annotation was computed. [2020-10-27 15:02:34,999 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)) [2020-10-27 15:02:34,999 INFO L277 CegarLoopResult]: At program point L107(lines 106 629) the Hoare annotation is: true [2020-10-27 15:02:35,000 INFO L274 CegarLoopResult]: For program point L339(lines 339 343) no Hoare annotation was computed. [2020-10-27 15:02:35,000 INFO L274 CegarLoopResult]: For program point L472(lines 472 483) no Hoare annotation was computed. [2020-10-27 15:02:35,000 INFO L274 CegarLoopResult]: For program point L439(lines 439 443) no Hoare annotation was computed. [2020-10-27 15:02:35,000 INFO L270 CegarLoopResult]: At program point L373(lines 356 391) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8560)) (.cse1 (<= 8528 ssl3_accept_~s__state~0))) (or (and (= ssl3_accept_~s__hit~0 0) .cse0 (<= ssl3_accept_~blastFlag~0 2) .cse1) (and (<= ssl3_accept_~blastFlag~0 1) .cse0 .cse1))) [2020-10-27 15:02:35,000 INFO L274 CegarLoopResult]: For program point L241(lines 241 246) no Hoare annotation was computed. [2020-10-27 15:02:35,000 INFO L274 CegarLoopResult]: For program point L208(lines 208 595) no Hoare annotation was computed. [2020-10-27 15:02:35,000 INFO L274 CegarLoopResult]: For program point L175(lines 175 606) no Hoare annotation was computed. [2020-10-27 15:02:35,000 INFO L274 CegarLoopResult]: For program point L142(lines 142 617) no Hoare annotation was computed. [2020-10-27 15:02:35,000 INFO L274 CegarLoopResult]: For program point L109(lines 109 628) no Hoare annotation was computed. [2020-10-27 15:02:35,000 INFO L277 CegarLoopResult]: At program point ssl3_acceptENTRY(lines 11 679) the Hoare annotation is: true [2020-10-27 15:02:35,001 INFO L270 CegarLoopResult]: At program point L407(lines 398 429) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8560)) (.cse1 (<= 8528 ssl3_accept_~s__state~0))) (or (and .cse0 (<= ssl3_accept_~blastFlag~0 1) .cse1) (and .cse0 (= ssl3_accept_~s__hit~0 0) (<= ssl3_accept_~blastFlag~0 2) .cse1))) [2020-10-27 15:02:35,001 INFO L277 CegarLoopResult]: At program point L209(lines 208 595) the Hoare annotation is: true [2020-10-27 15:02:35,001 INFO L270 CegarLoopResult]: At program point L176(lines 172 607) the Hoare annotation is: (let ((.cse0 (<= 8576 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8608))) (or (and (= ssl3_accept_~s__hit~0 0) .cse0 (<= ssl3_accept_~blastFlag~0 2) (<= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (and (<= ssl3_accept_~blastFlag~0 1) .cse0 .cse1))) [2020-10-27 15:02:35,001 INFO L270 CegarLoopResult]: At program point L143(lines 139 618) the Hoare annotation is: (or (let ((.cse0 (+ (* ssl3_accept_~ag_X~0 2) (* ssl3_accept_~ag_Y~0 2)))) (let ((.cse1 (* (div .cse0 4294967296) 4294967296))) (and (= ssl3_accept_~s__hit~0 0) (= .cse0 (+ .cse1 ssl3_accept_~s__state~0)) (<= ssl3_accept_~blastFlag~0 2) (= .cse0 (+ .cse1 8496)) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)))) (and (<= ssl3_accept_~blastFlag~0 1) (<= ssl3_accept_~s__state~0 8528) (<= 8466 ssl3_accept_~s__state~0))) [2020-10-27 15:02:35,001 INFO L274 CegarLoopResult]: For program point L77(lines 77 85) no Hoare annotation was computed. [2020-10-27 15:02:35,001 INFO L274 CegarLoopResult]: For program point L672(line 672) no Hoare annotation was computed. [2020-10-27 15:02:35,001 INFO L274 CegarLoopResult]: For program point L375(lines 375 379) no Hoare annotation was computed. [2020-10-27 15:02:35,001 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-27 15:02:35,002 INFO L274 CegarLoopResult]: For program point L178(lines 178 605) no Hoare annotation was computed. [2020-10-27 15:02:35,002 INFO L274 CegarLoopResult]: For program point L145(lines 145 616) no Hoare annotation was computed. [2020-10-27 15:02:35,002 INFO L274 CegarLoopResult]: For program point L112(lines 112 627) no Hoare annotation was computed. [2020-10-27 15:02:35,002 INFO L274 CegarLoopResult]: For program point L575(lines 575 585) no Hoare annotation was computed. [2020-10-27 15:02:35,002 INFO L274 CegarLoopResult]: For program point L575-1(lines 575 585) no Hoare annotation was computed. [2020-10-27 15:02:35,002 INFO L274 CegarLoopResult]: For program point L476(lines 476 480) no Hoare annotation was computed. [2020-10-27 15:02:35,002 INFO L274 CegarLoopResult]: For program point L278(lines 278 282) no Hoare annotation was computed. [2020-10-27 15:02:35,002 INFO L277 CegarLoopResult]: At program point L212(lines 211 594) the Hoare annotation is: true [2020-10-27 15:02:35,002 INFO L274 CegarLoopResult]: For program point L80(lines 80 84) no Hoare annotation was computed. [2020-10-27 15:02:35,002 INFO L274 CegarLoopResult]: For program point L80-2(lines 77 85) no Hoare annotation was computed. [2020-10-27 15:02:35,002 INFO L274 CegarLoopResult]: For program point L510(lines 510 514) no Hoare annotation was computed. [2020-10-27 15:02:35,003 INFO L274 CegarLoopResult]: For program point L312(lines 312 320) no Hoare annotation was computed. [2020-10-27 15:02:35,003 INFO L277 CegarLoopResult]: At program point L676(lines 68 678) the Hoare annotation is: true [2020-10-27 15:02:35,003 INFO L274 CegarLoopResult]: For program point L643(lines 643 649) no Hoare annotation was computed. [2020-10-27 15:02:35,003 INFO L274 CegarLoopResult]: For program point L544(lines 544 549) no Hoare annotation was computed. [2020-10-27 15:02:35,003 INFO L274 CegarLoopResult]: For program point L181(lines 181 604) no Hoare annotation was computed. [2020-10-27 15:02:35,003 INFO L274 CegarLoopResult]: For program point L148(lines 148 615) no Hoare annotation was computed. [2020-10-27 15:02:35,003 INFO L274 CegarLoopResult]: For program point L115(lines 115 626) no Hoare annotation was computed. [2020-10-27 15:02:35,003 INFO L274 CegarLoopResult]: For program point L578(lines 578 582) no Hoare annotation was computed. [2020-10-27 15:02:35,003 INFO L270 CegarLoopResult]: At program point L182(lines 178 605) the Hoare annotation is: (let ((.cse0 (<= 8576 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~s__state~0 8608))) (or (and (= ssl3_accept_~s__hit~0 0) .cse0 (<= ssl3_accept_~blastFlag~0 2) (<= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576) .cse1) (and (<= ssl3_accept_~blastFlag~0 1) .cse0 .cse1))) [2020-10-27 15:02:35,004 INFO L270 CegarLoopResult]: At program point L149(lines 145 616) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8528)) (.cse1 (<= 8466 ssl3_accept_~s__state~0))) (or (and (= ssl3_accept_~s__hit~0 0) .cse0 (<= ssl3_accept_~blastFlag~0 2) .cse1) (and (<= ssl3_accept_~blastFlag~0 1) .cse0 .cse1))) [2020-10-27 15:02:35,004 INFO L274 CegarLoopResult]: For program point L315(lines 315 319) no Hoare annotation was computed. [2020-10-27 15:02:35,004 INFO L274 CegarLoopResult]: For program point L315-2(lines 213 591) no Hoare annotation was computed. [2020-10-27 15:02:35,004 INFO L277 CegarLoopResult]: At program point L216(lines 109 628) the Hoare annotation is: true [2020-10-27 15:02:35,004 INFO L274 CegarLoopResult]: For program point L184(lines 184 603) no Hoare annotation was computed. [2020-10-27 15:02:35,004 INFO L274 CegarLoopResult]: For program point L151(lines 151 614) no Hoare annotation was computed. [2020-10-27 15:02:35,004 INFO L274 CegarLoopResult]: For program point L118(lines 118 625) no Hoare annotation was computed. [2020-10-27 15:02:35,004 INFO L274 CegarLoopResult]: For program point L515(lines 515 519) no Hoare annotation was computed. [2020-10-27 15:02:35,004 INFO L274 CegarLoopResult]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2020-10-27 15:02:35,004 INFO L274 CegarLoopResult]: For program point L449-1(lines 449 461) no Hoare annotation was computed. [2020-10-27 15:02:35,005 INFO L270 CegarLoopResult]: At program point L417(lines 408 428) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8560)) (.cse1 (<= 8528 ssl3_accept_~s__state~0))) (or (and .cse0 (= ssl3_accept_~s__hit~0 0) (<= ssl3_accept_~blastFlag~0 2) .cse1) (and (<= ssl3_accept_~blastFlag~0 1) .cse0 .cse1))) [2020-10-27 15:02:35,005 INFO L274 CegarLoopResult]: For program point L351(lines 351 355) no Hoare annotation was computed. [2020-10-27 15:02:35,005 INFO L274 CegarLoopResult]: For program point L351-2(lines 213 591) no Hoare annotation was computed. [2020-10-27 15:02:35,005 INFO L274 CegarLoopResult]: For program point L87(lines 87 95) no Hoare annotation was computed. [2020-10-27 15:02:35,005 INFO L274 CegarLoopResult]: For program point L87-1(lines 68 678) no Hoare annotation was computed. [2020-10-27 15:02:35,005 INFO L274 CegarLoopResult]: For program point L187(lines 187 602) no Hoare annotation was computed. [2020-10-27 15:02:35,005 INFO L274 CegarLoopResult]: For program point L154(lines 154 613) no Hoare annotation was computed. [2020-10-27 15:02:35,005 INFO L274 CegarLoopResult]: For program point L121(lines 121 624) no Hoare annotation was computed. [2020-10-27 15:02:35,005 INFO L274 CegarLoopResult]: For program point L88(lines 88 92) no Hoare annotation was computed. [2020-10-27 15:02:35,005 INFO L274 CegarLoopResult]: For program point L452(lines 452 457) no Hoare annotation was computed. [2020-10-27 15:02:35,006 INFO L274 CegarLoopResult]: For program point L221(lines 221 225) no Hoare annotation was computed. [2020-10-27 15:02:35,006 INFO L270 CegarLoopResult]: At program point L188(lines 184 603) the Hoare annotation is: (let ((.cse0 (<= 8576 ssl3_accept_~s__state~0))) (or (and (= ssl3_accept_~s__hit~0 0) .cse0 (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~blastFlag~0 1) .cse0))) [2020-10-27 15:02:35,006 INFO L270 CegarLoopResult]: At program point L155(lines 151 614) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8560)) (.cse1 (<= 8528 ssl3_accept_~s__state~0))) (or (and (= ssl3_accept_~s__hit~0 0) .cse0 (<= ssl3_accept_~blastFlag~0 2) .cse1) (and (<= ssl3_accept_~blastFlag~0 1) .cse0 .cse1))) [2020-10-27 15:02:35,006 INFO L274 CegarLoopResult]: For program point L221-2(lines 213 591) no Hoare annotation was computed. [2020-10-27 15:02:35,006 INFO L274 CegarLoopResult]: For program point ssl3_acceptEXIT(lines 11 679) no Hoare annotation was computed. [2020-10-27 15:02:35,006 INFO L274 CegarLoopResult]: For program point L420(lines 420 424) no Hoare annotation was computed. [2020-10-27 15:02:35,006 INFO L274 CegarLoopResult]: For program point L190(lines 190 601) no Hoare annotation was computed. [2020-10-27 15:02:35,006 INFO L274 CegarLoopResult]: For program point L157(lines 157 612) no Hoare annotation was computed. [2020-10-27 15:02:35,006 INFO L274 CegarLoopResult]: For program point L124(lines 124 623) no Hoare annotation was computed. [2020-10-27 15:02:35,006 INFO L274 CegarLoopResult]: For program point L554(lines 554 558) no Hoare annotation was computed. [2020-10-27 15:02:35,006 INFO L274 CegarLoopResult]: For program point L488(lines 488 492) no Hoare annotation was computed. [2020-10-27 15:02:35,007 INFO L270 CegarLoopResult]: At program point L125(lines 121 624) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8528)) (.cse1 (<= 8466 ssl3_accept_~s__state~0))) (or (and (= ssl3_accept_~s__hit~0 0) .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 3) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (and (<= ssl3_accept_~blastFlag~0 1) .cse0 .cse1))) [2020-10-27 15:02:35,007 INFO L274 CegarLoopResult]: For program point ssl3_acceptFINAL(lines 11 679) no Hoare annotation was computed. [2020-10-27 15:02:35,007 INFO L270 CegarLoopResult]: At program point L555(lines 68 678) the Hoare annotation is: false [2020-10-27 15:02:35,007 INFO L274 CegarLoopResult]: For program point L258(lines 258 272) no Hoare annotation was computed. [2020-10-27 15:02:35,007 INFO L274 CegarLoopResult]: For program point L259(lines 259 264) no Hoare annotation was computed. [2020-10-27 15:02:35,007 INFO L274 CegarLoopResult]: For program point L193(lines 193 600) no Hoare annotation was computed. [2020-10-27 15:02:35,007 INFO L274 CegarLoopResult]: For program point L160(lines 160 611) no Hoare annotation was computed. [2020-10-27 15:02:35,007 INFO L274 CegarLoopResult]: For program point L127(lines 127 622) no Hoare annotation was computed. [2020-10-27 15:02:35,007 INFO L274 CegarLoopResult]: For program point L359(lines 359 390) no Hoare annotation was computed. [2020-10-27 15:02:35,007 INFO L274 CegarLoopResult]: For program point L326(lines 326 330) no Hoare annotation was computed. [2020-10-27 15:02:35,008 INFO L274 CegarLoopResult]: For program point L326-2(lines 326 330) no Hoare annotation was computed. [2020-10-27 15:02:35,008 INFO L270 CegarLoopResult]: At program point L194(lines 190 601) the Hoare annotation is: (and (<= 8576 ssl3_accept_~s__state~0) (<= ssl3_accept_~blastFlag~0 3)) [2020-10-27 15:02:35,008 INFO L270 CegarLoopResult]: At program point L161(lines 157 612) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8560)) (.cse1 (<= 8528 ssl3_accept_~s__state~0))) (or (and .cse0 (<= ssl3_accept_~blastFlag~0 1) .cse1) (and .cse0 (= ssl3_accept_~s__hit~0 0) (<= ssl3_accept_~blastFlag~0 2) .cse1))) [2020-10-27 15:02:35,008 INFO L270 CegarLoopResult]: At program point L128(lines 127 622) the Hoare annotation is: (and (<= ssl3_accept_~s__state~0 8528) (<= 8466 ssl3_accept_~s__state~0)) [2020-10-27 15:02:35,008 INFO L274 CegarLoopResult]: For program point L525(lines 525 530) no Hoare annotation was computed. [2020-10-27 15:02:35,008 INFO L270 CegarLoopResult]: At program point L592(lines 103 660) the Hoare annotation is: (let ((.cse1 (<= 8576 ssl3_accept_~s__state~0)) (.cse10 (<= 8640 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse11 (<= 8640 ssl3_accept_~s__state~0)) (.cse7 (<= 8482 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse8 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8482)) (.cse6 (<= ssl3_accept_~s__state~0 8448)) (.cse3 (<= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse4 (<= ssl3_accept_~blastFlag~0 3)) (.cse5 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8576)) (.cse0 (= ssl3_accept_~s__hit~0 0)) (.cse2 (<= ssl3_accept_~blastFlag~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= ssl3_accept_~s__state~0 8608)) (and .cse4 (<= 8672 ssl3_accept_~s__state~0)) (and .cse0 .cse2 (<= ssl3_accept_~s__state~0 8466) (<= 8466 ssl3_accept_~s__state~0) .cse3 .cse5) (and .cse0 .cse6 .cse7 .cse8 .cse4) (and .cse0 (let ((.cse9 (+ (* ssl3_accept_~ag_X~0 2) (* ssl3_accept_~ag_Y~0 2)))) (= .cse9 (+ (* (div .cse9 4294967296) 4294967296) ssl3_accept_~s__state~0))) .cse2 .cse3 .cse5) (and (<= ssl3_accept_~s__state~0 8560) .cse0 .cse2 (<= 8528 ssl3_accept_~s__state~0)) (and .cse6 (= 3 ssl3_accept_~s__s3__tmp__next_state___0~0)) (<= ssl3_accept_~blastFlag~0 1) (and .cse10 .cse6 .cse3 .cse4) (and (= ssl3_accept_~s__state~0 8656) .cse4) (and .cse11 .cse1 .cse10 .cse3 .cse4) (and .cse0 .cse11 .cse4) (and (<= ssl3_accept_~s__state~0 8482) .cse0 (< 8481 ssl3_accept_~s__state~0) .cse7 .cse8 .cse4) (and .cse0 .cse2 .cse6 .cse3 .cse4 .cse5) (and (= ssl3_accept_~s__state~0 8512) .cse0 .cse2) (= ssl3_accept_~s__state~0 3))) [2020-10-27 15:02:35,008 INFO L274 CegarLoopResult]: For program point L559(lines 559 563) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L295(lines 295 299) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L295-2(lines 213 591) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L196(lines 196 599) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L163(lines 163 610) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L130(lines 130 621) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L362(lines 362 389) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L362-1(lines 362 389) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L363(lines 363 386) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L277 CegarLoopResult]: At program point L661(lines 102 662) the Hoare annotation is: true [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L199(lines 199 598) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L166(lines 166 609) no Hoare annotation was computed. [2020-10-27 15:02:35,009 INFO L274 CegarLoopResult]: For program point L133(lines 133 620) no Hoare annotation was computed. [2020-10-27 15:02:35,010 INFO L274 CegarLoopResult]: For program point L398(lines 398 429) no Hoare annotation was computed. [2020-10-27 15:02:35,010 INFO L274 CegarLoopResult]: For program point L233(lines 233 250) no Hoare annotation was computed. [2020-10-27 15:02:35,010 INFO L270 CegarLoopResult]: At program point L200(lines 196 599) the Hoare annotation is: (let ((.cse0 (<= 8576 ssl3_accept_~s__state~0)) (.cse1 (<= ssl3_accept_~blastFlag~0 3))) (or (and (= ssl3_accept_~s__hit~0 0) .cse0 .cse1) (and (<= 8640 ssl3_accept_~s__state~0) .cse0 .cse1))) [2020-10-27 15:02:35,010 INFO L270 CegarLoopResult]: At program point L167(lines 163 610) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8576)) (.cse1 (<= 8528 ssl3_accept_~s__state~0))) (or (and .cse0 (= ssl3_accept_~s__hit~0 0) (<= ssl3_accept_~blastFlag~0 2) .cse1) (and .cse0 (<= ssl3_accept_~blastFlag~0 1) .cse1))) [2020-10-27 15:02:35,010 INFO L274 CegarLoopResult]: For program point L233-2(lines 213 591) no Hoare annotation was computed. [2020-10-27 15:02:35,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:02:35 BoogieIcfgContainer [2020-10-27 15:02:35,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:02:35,040 INFO L168 Benchmark]: Toolchain (without parser) took 82462.36 ms. Allocated memory was 160.4 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 135.1 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 810.5 MB. Max. memory is 8.0 GB. [2020-10-27 15:02:35,041 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 160.4 MB. Free memory is still 132.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:02:35,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.46 ms. Allocated memory is still 160.4 MB. Free memory was 134.5 MB in the beginning and 119.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 15:02:35,042 INFO L168 Benchmark]: Boogie Preprocessor took 75.21 ms. Allocated memory is still 160.4 MB. Free memory was 119.5 MB in the beginning and 117.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 15:02:35,042 INFO L168 Benchmark]: RCFGBuilder took 1208.38 ms. Allocated memory is still 160.4 MB. Free memory was 117.1 MB in the beginning and 102.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:02:35,043 INFO L168 Benchmark]: TraceAbstraction took 80599.32 ms. Allocated memory was 160.4 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 102.6 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 777.4 MB. Max. memory is 8.0 GB. [2020-10-27 15:02:35,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 160.4 MB. Free memory is still 132.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 563.46 ms. Allocated memory is still 160.4 MB. Free memory was 134.5 MB in the beginning and 119.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 75.21 ms. Allocated memory is still 160.4 MB. Free memory was 119.5 MB in the beginning and 117.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1208.38 ms. Allocated memory is still 160.4 MB. Free memory was 117.1 MB in the beginning and 102.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 80599.32 ms. Allocated memory was 160.4 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 102.6 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 777.4 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: ((s__state <= 8560 && blastFlag <= 1) && 8528 <= s__state) || (((s__state <= 8560 && s__hit == 0) && blastFlag <= 2) && 8528 <= s__state) - 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 && 8576 <= s__state) && blastFlag <= 2) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 8576) && s__state <= 8608) || (blastFlag <= 3 && 8672 <= s__state)) || (((((s__hit == 0 && blastFlag <= 2) && s__state <= 8466) && 8466 <= s__state) && 8576 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576)) || ((((s__hit == 0 && s__state <= 8448) && 8482 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8482) && blastFlag <= 3)) || ((((s__hit == 0 && ag_X * 2 + ag_Y * 2 == (ag_X * 2 + ag_Y * 2) / 4294967296 * 4294967296 + s__state) && blastFlag <= 2) && 8576 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576)) || (((s__state <= 8560 && s__hit == 0) && blastFlag <= 2) && 8528 <= s__state)) || (s__state <= 8448 && 3 == s__s3__tmp__next_state___0)) || blastFlag <= 1) || (((8640 <= s__s3__tmp__next_state___0 && s__state <= 8448) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3)) || (s__state == 8656 && blastFlag <= 3)) || ((((8640 <= s__state && 8576 <= s__state) && 8640 <= s__s3__tmp__next_state___0) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3)) || ((s__hit == 0 && 8640 <= s__state) && blastFlag <= 3)) || (((((s__state <= 8482 && s__hit == 0) && 8481 < s__state) && 8482 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8482) && blastFlag <= 3)) || (((((s__hit == 0 && blastFlag <= 2) && s__state <= 8448) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 8576)) || ((s__state == 8512 && s__hit == 0) && blastFlag <= 2)) || s__state == 3 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: (((s__hit == 0 && s__state <= 8560) && blastFlag <= 2) && 8528 <= s__state) || ((blastFlag <= 1 && s__state <= 8560) && 8528 <= s__state) - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: ((s__hit == 0 && 8576 <= s__state) && blastFlag <= 3) || (blastFlag <= 1 && 8576 <= s__state) - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && blastFlag <= 2) && s__state <= 8466) && 8576 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576) || (blastFlag <= 1 && s__state <= 8466) - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: ((((blastFlag <= 1 && s__state <= 8448) || (((8640 <= s__s3__tmp__next_state___0 && s__state <= 8448) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3)) || (((((s__hit == 0 && blastFlag <= 2) && s__state <= 8448) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 8576)) || (s__state <= 8448 && 3 == s__s3__tmp__next_state___0)) || ((((s__hit == 0 && s__state <= 8448) && 8482 <= s__s3__tmp__next_state___0) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 8482) - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: (((s__hit == 0 && s__state <= 8560) && blastFlag <= 2) && 8528 <= s__state) || ((blastFlag <= 1 && s__state <= 8560) && 8528 <= s__state) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: s__state <= 8528 && 8466 <= s__state - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ((s__state <= 8560 && blastFlag <= 1) && 8528 <= s__state) || (((s__state <= 8560 && s__hit == 0) && blastFlag <= 2) && 8528 <= s__state) - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: (((s__state <= 8560 && s__hit == 0) && blastFlag <= 2) && 8528 <= s__state) || ((blastFlag <= 1 && s__state <= 8560) && 8528 <= s__state) - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: 8576 <= s__state && blastFlag <= 3 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && ag_X * 2 + ag_Y * 2 == (ag_X * 2 + ag_Y * 2) / 4294967296 * 4294967296 + s__state) && blastFlag <= 2) && ag_X * 2 + ag_Y * 2 == (ag_X * 2 + ag_Y * 2) / 4294967296 * 4294967296 + 8496) && s__s3__tmp__next_state___0 <= 8576) || ((blastFlag <= 1 && s__state <= 8528) && 8466 <= s__state) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: ((((((((((((((((((((s__hit == 0 && 8576 <= s__state) && blastFlag <= 2) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 8576) && s__state <= 8608) || (blastFlag <= 3 && 8672 <= s__state)) || (((((s__hit == 0 && blastFlag <= 2) && s__state <= 8466) && 8466 <= s__state) && 8576 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576)) || ((((s__hit == 0 && s__state <= 8448) && 8482 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8482) && blastFlag <= 3)) || ((((s__hit == 0 && ag_X * 2 + ag_Y * 2 == (ag_X * 2 + ag_Y * 2) / 4294967296 * 4294967296 + s__state) && blastFlag <= 2) && 8576 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576)) || (((s__state <= 8560 && s__hit == 0) && blastFlag <= 2) && 8528 <= s__state)) || (s__state <= 8448 && 3 == s__s3__tmp__next_state___0)) || blastFlag <= 1) || (((8640 <= s__s3__tmp__next_state___0 && s__state <= 8448) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3)) || (s__state == 8656 && blastFlag <= 3)) || ((((8640 <= s__state && 8576 <= s__state) && 8640 <= s__s3__tmp__next_state___0) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3)) || ((s__hit == 0 && 8640 <= s__state) && blastFlag <= 3)) || (((((s__state <= 8482 && s__hit == 0) && 8481 < s__state) && 8482 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8482) && blastFlag <= 3)) || (((((s__hit == 0 && blastFlag <= 2) && s__state <= 8448) && 8576 <= s__s3__tmp__next_state___0) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 8576)) || ((s__state == 8512 && s__hit == 0) && blastFlag <= 2)) || s__state == 3 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (((((s__hit == 0 && 8576 <= s__state) && blastFlag <= 2) && 8576 <= s__s3__tmp__next_state___0) && s__state <= 8608) && s__s3__tmp__next_state___0 <= 8576) || ((blastFlag <= 1 && 8576 <= s__state) && s__state <= 8608) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: (((s__state <= 8576 && s__hit == 0) && blastFlag <= 2) && 8528 <= s__state) || ((s__state <= 8576 && blastFlag <= 1) && 8528 <= s__state) - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && s__state <= 8528) && 8466 <= s__state) && blastFlag <= 3) && s__s3__tmp__next_state___0 <= 8576) || ((blastFlag <= 1 && s__state <= 8528) && 8466 <= s__state) - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: ((s__hit == 0 && 8576 <= s__state) && blastFlag <= 3) || ((8640 <= s__state && 8576 <= s__state) && blastFlag <= 3) - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: (((s__hit == 0 && s__state <= 8528) && blastFlag <= 2) && 8466 <= s__state) || ((blastFlag <= 1 && s__state <= 8528) && 8466 <= s__state) - 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: (((((s__hit == 0 && 8576 <= s__state) && blastFlag <= 2) && 8576 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576) && s__state <= 8608) || ((blastFlag <= 1 && 8576 <= s__state) && s__state <= 8608) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 58.3s, OverallIterations: 27, TraceHistogramMax: 19, AutomataDifference: 20.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 22.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5953 SDtfs, 7670 SDslu, 267 SDs, 0 SdLazy, 6832 SolverSat, 602 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7276occurred in iteration=23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 27 MinimizatonAttempts, 8653 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 60 PreInvPairs, 752 NumberOfFragments, 947 HoareAnnotationTreeSize, 60 FomulaSimplifications, 993126 FormulaSimplificationTreeSizeReduction, 7.9s HoareSimplificationTime, 34 FomulaSimplificationsInter, 111020 FormulaSimplificationTreeSizeReductionInter, 14.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 30.2s InterpolantComputationTime, 7149 NumberOfCodeBlocks, 7149 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 7122 ConstructedInterpolants, 0 QuantifiedInterpolants, 5306744 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 25841/26176 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...