/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=SHALLOWEST --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_1a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:00:51,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:00:51,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:00:51,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:00:51,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:00:51,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:00:51,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:00:51,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:00:51,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:00:51,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:00:51,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:00:51,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:00:51,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:00:51,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:00:51,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:00:51,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:00:51,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:00:51,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:00:51,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:00:51,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:00:51,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:00:51,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:00:51,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:00:51,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:00:51,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:00:51,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:00:51,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:00:51,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:00:51,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:00:51,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:00:51,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:00:51,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:00:51,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:00:51,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:00:51,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:00:51,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:00:51,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:00:51,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:00:51,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:00:51,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:00:51,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:00:51,322 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 [2020-10-26 20:00:51,381 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:00:51,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:00:51,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:00:51,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:00:51,387 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:00:51,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:00:51,388 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:00:51,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:00:51,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:00:51,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:00:51,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:00:51,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:00:51,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:00:51,391 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:00:51,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:00:51,391 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:00:51,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:00:51,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:00:51,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:00:51,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:00:51,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:00:51,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:00:51,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:00:51,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:00:51,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:00:51,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:00:51,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:00:51,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:00:51,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:00:51,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:00:51,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:00:51,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:00:51,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:00:51,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:00:51,872 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:00:51,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2020-10-26 20:00:51,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a42901841/e01c34500ed04953afda44040c062994/FLAGfe9249dc2 [2020-10-26 20:00:52,862 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:00:52,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_srvr_1a.BV.c.cil.c [2020-10-26 20:00:52,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a42901841/e01c34500ed04953afda44040c062994/FLAGfe9249dc2 [2020-10-26 20:00:53,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a42901841/e01c34500ed04953afda44040c062994 [2020-10-26 20:00:53,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:00:53,213 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:00:53,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:00:53,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:00:53,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:00:53,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:00:53" (1/1) ... [2020-10-26 20:00:53,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d670427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53, skipping insertion in model container [2020-10-26 20:00:53,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:00:53" (1/1) ... [2020-10-26 20:00:53,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:00:53,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:00:53,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:00:53,635 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:00:53,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:00:53,741 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:00:53,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53 WrapperNode [2020-10-26 20:00:53,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:00:53,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:00:53,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:00:53,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:00:53,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53" (1/1) ... [2020-10-26 20:00:53,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53" (1/1) ... [2020-10-26 20:00:53,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53" (1/1) ... [2020-10-26 20:00:53,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53" (1/1) ... [2020-10-26 20:00:53,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53" (1/1) ... [2020-10-26 20:00:53,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53" (1/1) ... [2020-10-26 20:00:53,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53" (1/1) ... [2020-10-26 20:00:53,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:00:53,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:00:53,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:00:53,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:00:53,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53" (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 [2020-10-26 20:00:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:00:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:00:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:00:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-26 20:00:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:00:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:00:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:00:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:00:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:00:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-26 20:00:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-26 20:00:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:00:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-26 20:00:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-26 20:00:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:00:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:00:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:00:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:00:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:00:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:00:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:00:54,223 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-26 20:00:55,019 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-26 20:00:55,019 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-26 20:00:55,047 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:00:55,047 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:00:55,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:00:55 BoogieIcfgContainer [2020-10-26 20:00:55,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:00:55,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:00:55,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:00:55,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:00:55,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:00:53" (1/3) ... [2020-10-26 20:00:55,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a4f9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:00:55, skipping insertion in model container [2020-10-26 20:00:55,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:53" (2/3) ... [2020-10-26 20:00:55,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a4f9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:00:55, skipping insertion in model container [2020-10-26 20:00:55,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:00:55" (3/3) ... [2020-10-26 20:00:55,062 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.BV.c.cil.c [2020-10-26 20:00:55,078 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:00:55,086 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:00:55,104 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:00:55,141 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:00:55,141 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:00:55,141 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:00:55,142 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:00:55,142 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:00:55,142 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:00:55,142 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:00:55,142 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:00:55,170 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2020-10-26 20:00:55,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-26 20:00:55,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:00:55,185 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] [2020-10-26 20:00:55,185 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:00:55,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:00:55,193 INFO L82 PathProgramCache]: Analyzing trace with hash -76443695, now seen corresponding path program 1 times [2020-10-26 20:00:55,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:00:55,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572404218] [2020-10-26 20:00:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:00:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:55,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:55,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:56,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:56,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:56,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-26 20:00:56,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:00:56,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-10-26 20:00:56,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:00:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:00:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:00:56,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:00:56,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:00:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:56,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:56,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:56,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:00:56,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:56,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:00:56,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:56,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:00:56,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:00:56,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:00:56,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:56,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:00:56,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572404218] [2020-10-26 20:00:56,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:00:56,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:00:56,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690248656] [2020-10-26 20:00:56,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:00:56,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:00:56,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:00:56,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:00:56,649 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 6 states. [2020-10-26 20:00:57,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:00:57,775 INFO L93 Difference]: Finished difference Result 342 states and 582 transitions. [2020-10-26 20:00:57,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:00:57,777 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-10-26 20:00:57,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:00:57,792 INFO L225 Difference]: With dead ends: 342 [2020-10-26 20:00:57,793 INFO L226 Difference]: Without dead ends: 180 [2020-10-26 20:00:57,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:00:57,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-26 20:00:57,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 175. [2020-10-26 20:00:57,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-26 20:00:57,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 281 transitions. [2020-10-26 20:00:57,879 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 281 transitions. Word has length 51 [2020-10-26 20:00:57,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:00:57,880 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 281 transitions. [2020-10-26 20:00:57,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:00:57,880 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 281 transitions. [2020-10-26 20:00:57,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-26 20:00:57,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:00:57,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:00:57,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:00:57,884 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:00:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:00:57,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1708942398, now seen corresponding path program 1 times [2020-10-26 20:00:57,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:00:57,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214012280] [2020-10-26 20:00:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:00:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:57,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:57,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:58,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:58,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:58,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-26 20:00:58,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:00:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-26 20:00:58,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:00:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:00:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:00:58,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:58,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:00:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:58,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:58,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:58,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:00:58,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:58,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:00:58,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:58,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:00:58,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:00:58,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:00:58,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:00:58,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214012280] [2020-10-26 20:00:58,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:00:58,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:00:58,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574327594] [2020-10-26 20:00:58,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:00:58,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:00:58,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:00:58,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:00:58,563 INFO L87 Difference]: Start difference. First operand 175 states and 281 transitions. Second operand 6 states. [2020-10-26 20:00:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:00:59,488 INFO L93 Difference]: Finished difference Result 357 states and 580 transitions. [2020-10-26 20:00:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:00:59,489 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-10-26 20:00:59,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:00:59,492 INFO L225 Difference]: With dead ends: 357 [2020-10-26 20:00:59,492 INFO L226 Difference]: Without dead ends: 196 [2020-10-26 20:00:59,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:00:59,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-26 20:00:59,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2020-10-26 20:00:59,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-26 20:00:59,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 304 transitions. [2020-10-26 20:00:59,518 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 304 transitions. Word has length 52 [2020-10-26 20:00:59,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:00:59,519 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 304 transitions. [2020-10-26 20:00:59,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:00:59,519 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 304 transitions. [2020-10-26 20:00:59,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-26 20:00:59,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:00:59,523 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:00:59,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:00:59,523 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:00:59,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:00:59,524 INFO L82 PathProgramCache]: Analyzing trace with hash 843098969, now seen corresponding path program 1 times [2020-10-26 20:00:59,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:00:59,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987839467] [2020-10-26 20:00:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:00:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:59,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:59,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:59,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:59,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:59,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 20:00:59,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:00:59,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-26 20:00:59,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:00:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-26 20:00:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:00:59,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:59,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:00:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:59,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:59,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:59,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:00:59,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:59,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:00:59,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:00:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:00:59,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:00:59,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:59,947 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:00:59,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987839467] [2020-10-26 20:00:59,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:00:59,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:00:59,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493605108] [2020-10-26 20:00:59,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:00:59,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:00:59,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:00:59,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:00:59,952 INFO L87 Difference]: Start difference. First operand 193 states and 304 transitions. Second operand 4 states. [2020-10-26 20:01:00,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:00,522 INFO L93 Difference]: Finished difference Result 548 states and 874 transitions. [2020-10-26 20:01:00,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:00,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2020-10-26 20:01:00,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:00,535 INFO L225 Difference]: With dead ends: 548 [2020-10-26 20:01:00,535 INFO L226 Difference]: Without dead ends: 369 [2020-10-26 20:01:00,538 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 [2020-10-26 20:01:00,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-26 20:01:00,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2020-10-26 20:01:00,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-10-26 20:01:00,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 584 transitions. [2020-10-26 20:01:00,585 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 584 transitions. Word has length 68 [2020-10-26 20:01:00,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:00,586 INFO L481 AbstractCegarLoop]: Abstraction has 369 states and 584 transitions. [2020-10-26 20:01:00,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 584 transitions. [2020-10-26 20:01:00,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-26 20:01:00,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:00,600 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, 1] [2020-10-26 20:01:00,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:01:00,600 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:00,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:00,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1708631581, now seen corresponding path program 1 times [2020-10-26 20:01:00,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:00,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898458459] [2020-10-26 20:01:00,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:00,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:00,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:00,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:00,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:00,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-26 20:01:00,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:01:00,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-26 20:01:00,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:00,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:00,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:01:00,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:01:00,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:01,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:01,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:01,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:01,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:01,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:01,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:01:01,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:01,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:01,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:01,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:01,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:01,063 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 20:01:01,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898458459] [2020-10-26 20:01:01,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:01,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:01,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611951408] [2020-10-26 20:01:01,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:01,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:01,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:01,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:01,066 INFO L87 Difference]: Start difference. First operand 369 states and 584 transitions. Second operand 4 states. [2020-10-26 20:01:01,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:01,720 INFO L93 Difference]: Finished difference Result 900 states and 1434 transitions. [2020-10-26 20:01:01,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:01,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2020-10-26 20:01:01,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:01,725 INFO L225 Difference]: With dead ends: 900 [2020-10-26 20:01:01,726 INFO L226 Difference]: Without dead ends: 545 [2020-10-26 20:01:01,728 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 [2020-10-26 20:01:01,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-26 20:01:01,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2020-10-26 20:01:01,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-10-26 20:01:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 865 transitions. [2020-10-26 20:01:01,770 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 865 transitions. Word has length 89 [2020-10-26 20:01:01,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:01,770 INFO L481 AbstractCegarLoop]: Abstraction has 545 states and 865 transitions. [2020-10-26 20:01:01,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:01,771 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 865 transitions. [2020-10-26 20:01:01,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-26 20:01:01,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:01,775 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] [2020-10-26 20:01:01,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:01:01,775 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:01,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:01,776 INFO L82 PathProgramCache]: Analyzing trace with hash 816009435, now seen corresponding path program 1 times [2020-10-26 20:01:01,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:01,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600255123] [2020-10-26 20:01:01,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:01,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:01,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:01,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 20:01:01,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-26 20:01:01,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-26 20:01:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:01:01,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:02,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:02,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:02,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:02,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:02,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:01:02,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-26 20:01:02,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600255123] [2020-10-26 20:01:02,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:02,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:02,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743311547] [2020-10-26 20:01:02,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:02,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:02,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:02,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:02,086 INFO L87 Difference]: Start difference. First operand 545 states and 865 transitions. Second operand 4 states. [2020-10-26 20:01:02,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:02,623 INFO L93 Difference]: Finished difference Result 724 states and 1151 transitions. [2020-10-26 20:01:02,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:02,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-10-26 20:01:02,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:02,633 INFO L225 Difference]: With dead ends: 724 [2020-10-26 20:01:02,634 INFO L226 Difference]: Without dead ends: 721 [2020-10-26 20:01:02,635 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 [2020-10-26 20:01:02,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-10-26 20:01:02,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2020-10-26 20:01:02,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2020-10-26 20:01:02,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1147 transitions. [2020-10-26 20:01:02,704 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1147 transitions. Word has length 128 [2020-10-26 20:01:02,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:02,706 INFO L481 AbstractCegarLoop]: Abstraction has 721 states and 1147 transitions. [2020-10-26 20:01:02,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:02,706 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1147 transitions. [2020-10-26 20:01:02,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-26 20:01:02,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:02,712 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:01:02,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:01:02,712 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:02,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:02,713 INFO L82 PathProgramCache]: Analyzing trace with hash 63492288, now seen corresponding path program 1 times [2020-10-26 20:01:02,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:02,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442751584] [2020-10-26 20:01:02,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:02,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:02,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:03,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:03,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-26 20:01:03,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:01:03,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-26 20:01:03,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:03,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:03,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-26 20:01:03,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-26 20:01:03,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:03,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:03,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:03,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:03,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:03,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:03,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:01:03,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:03,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:01:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-26 20:01:03,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442751584] [2020-10-26 20:01:03,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:03,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:03,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691247285] [2020-10-26 20:01:03,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:03,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:03,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:03,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:03,210 INFO L87 Difference]: Start difference. First operand 721 states and 1147 transitions. Second operand 4 states. [2020-10-26 20:01:03,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:03,867 INFO L93 Difference]: Finished difference Result 1636 states and 2648 transitions. [2020-10-26 20:01:03,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:03,868 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2020-10-26 20:01:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:03,876 INFO L225 Difference]: With dead ends: 1636 [2020-10-26 20:01:03,876 INFO L226 Difference]: Without dead ends: 929 [2020-10-26 20:01:03,880 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 [2020-10-26 20:01:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2020-10-26 20:01:03,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 885. [2020-10-26 20:01:03,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-10-26 20:01:03,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1343 transitions. [2020-10-26 20:01:03,943 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1343 transitions. Word has length 167 [2020-10-26 20:01:03,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:03,944 INFO L481 AbstractCegarLoop]: Abstraction has 885 states and 1343 transitions. [2020-10-26 20:01:03,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:03,944 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1343 transitions. [2020-10-26 20:01:03,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-26 20:01:03,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:03,952 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:03,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:01:03,952 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:03,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:03,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1221791364, now seen corresponding path program 1 times [2020-10-26 20:01:03,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:03,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434536757] [2020-10-26 20:01:03,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:04,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:04,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:04,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:04,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:04,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:04,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:04,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-26 20:01:04,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:01:04,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-10-26 20:01:04,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-26 20:01:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-26 20:01:04,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:04,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:04,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:04,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:04,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:04,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:04,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:01:04,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:04,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-26 20:01:04,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434536757] [2020-10-26 20:01:04,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:04,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:04,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162042022] [2020-10-26 20:01:04,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:04,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:04,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:04,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:04,954 INFO L87 Difference]: Start difference. First operand 885 states and 1343 transitions. Second operand 4 states. [2020-10-26 20:01:05,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:05,544 INFO L93 Difference]: Finished difference Result 1828 states and 2758 transitions. [2020-10-26 20:01:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:05,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 180 [2020-10-26 20:01:05,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:05,551 INFO L225 Difference]: With dead ends: 1828 [2020-10-26 20:01:05,552 INFO L226 Difference]: Without dead ends: 949 [2020-10-26 20:01:05,555 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 [2020-10-26 20:01:05,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2020-10-26 20:01:05,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 917. [2020-10-26 20:01:05,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-10-26 20:01:05,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1355 transitions. [2020-10-26 20:01:05,607 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1355 transitions. Word has length 180 [2020-10-26 20:01:05,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:05,608 INFO L481 AbstractCegarLoop]: Abstraction has 917 states and 1355 transitions. [2020-10-26 20:01:05,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:05,608 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1355 transitions. [2020-10-26 20:01:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-26 20:01:05,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:05,615 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:05,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:01:05,615 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:05,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:05,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1653194532, now seen corresponding path program 1 times [2020-10-26 20:01:05,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:05,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621488794] [2020-10-26 20:01:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:05,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:05,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:05,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:06,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:06,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:06,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:06,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-26 20:01:06,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:01:06,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1281 [2020-10-26 20:01:06,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:06,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-26 20:01:06,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:01:06,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:07,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:07,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:07,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:07,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:07,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:01:07,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:07,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:07,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:07,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:07,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:07,138 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-10-26 20:01:07,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621488794] [2020-10-26 20:01:07,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:07,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:07,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372089610] [2020-10-26 20:01:07,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:07,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:07,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:07,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:07,141 INFO L87 Difference]: Start difference. First operand 917 states and 1355 transitions. Second operand 4 states. [2020-10-26 20:01:07,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:07,739 INFO L93 Difference]: Finished difference Result 1944 states and 2912 transitions. [2020-10-26 20:01:07,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:07,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2020-10-26 20:01:07,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:07,746 INFO L225 Difference]: With dead ends: 1944 [2020-10-26 20:01:07,746 INFO L226 Difference]: Without dead ends: 1041 [2020-10-26 20:01:07,749 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 [2020-10-26 20:01:07,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2020-10-26 20:01:07,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2020-10-26 20:01:07,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-10-26 20:01:07,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1499 transitions. [2020-10-26 20:01:07,802 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1499 transitions. Word has length 238 [2020-10-26 20:01:07,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:07,802 INFO L481 AbstractCegarLoop]: Abstraction has 1041 states and 1499 transitions. [2020-10-26 20:01:07,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:07,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1499 transitions. [2020-10-26 20:01:07,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-26 20:01:07,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:07,808 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:07,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:01:07,809 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:07,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:07,809 INFO L82 PathProgramCache]: Analyzing trace with hash 2122255835, now seen corresponding path program 2 times [2020-10-26 20:01:07,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:07,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76187747] [2020-10-26 20:01:07,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:07,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:07,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:08,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:08,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:08,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:08,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:08,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-26 20:01:08,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:01:08,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1142 [2020-10-26 20:01:08,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-26 20:01:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-26 20:01:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-26 20:01:08,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:09,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:09,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:09,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:09,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:09,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:09,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:01:09,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:09,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:09,164 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 352 proven. 85 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2020-10-26 20:01:09,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76187747] [2020-10-26 20:01:09,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:01:09,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:01:09,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732305400] [2020-10-26 20:01:09,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:01:09,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:09,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:01:09,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:01:09,167 INFO L87 Difference]: Start difference. First operand 1041 states and 1499 transitions. Second operand 5 states. [2020-10-26 20:01:10,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:10,581 INFO L93 Difference]: Finished difference Result 2824 states and 4151 transitions. [2020-10-26 20:01:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:01:10,582 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 267 [2020-10-26 20:01:10,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:10,593 INFO L225 Difference]: With dead ends: 2824 [2020-10-26 20:01:10,593 INFO L226 Difference]: Without dead ends: 1759 [2020-10-26 20:01:10,597 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 [2020-10-26 20:01:10,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2020-10-26 20:01:10,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1401. [2020-10-26 20:01:10,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1401 states. [2020-10-26 20:01:10,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 2075 transitions. [2020-10-26 20:01:10,674 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 2075 transitions. Word has length 267 [2020-10-26 20:01:10,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:10,675 INFO L481 AbstractCegarLoop]: Abstraction has 1401 states and 2075 transitions. [2020-10-26 20:01:10,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:01:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 2075 transitions. [2020-10-26 20:01:10,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-26 20:01:10,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:10,682 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-26 20:01:10,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:01:10,682 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:10,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:10,683 INFO L82 PathProgramCache]: Analyzing trace with hash 305033557, now seen corresponding path program 1 times [2020-10-26 20:01:10,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:10,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557069180] [2020-10-26 20:01:10,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:10,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:10,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:11,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:11,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-26 20:01:11,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:01:11,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-26 20:01:11,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-26 20:01:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-26 20:01:11,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:11,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:11,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:11,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:11,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:11,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:11,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:01:11,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:11,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:11,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:11,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:11,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2020-10-26 20:01:11,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557069180] [2020-10-26 20:01:11,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:11,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:11,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435392971] [2020-10-26 20:01:11,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:11,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:11,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:11,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:11,240 INFO L87 Difference]: Start difference. First operand 1401 states and 2075 transitions. Second operand 4 states. [2020-10-26 20:01:11,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:11,825 INFO L93 Difference]: Finished difference Result 4149 states and 6164 transitions. [2020-10-26 20:01:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:11,825 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 278 [2020-10-26 20:01:11,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:11,842 INFO L225 Difference]: With dead ends: 4149 [2020-10-26 20:01:11,842 INFO L226 Difference]: Without dead ends: 2762 [2020-10-26 20:01:11,846 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 [2020-10-26 20:01:11,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2020-10-26 20:01:11,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2761. [2020-10-26 20:01:11,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2761 states. [2020-10-26 20:01:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 4090 transitions. [2020-10-26 20:01:11,994 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 4090 transitions. Word has length 278 [2020-10-26 20:01:11,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:11,995 INFO L481 AbstractCegarLoop]: Abstraction has 2761 states and 4090 transitions. [2020-10-26 20:01:11,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:11,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 4090 transitions. [2020-10-26 20:01:12,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-26 20:01:12,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:12,008 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:12,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:01:12,008 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:12,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:12,009 INFO L82 PathProgramCache]: Analyzing trace with hash 2110638437, now seen corresponding path program 1 times [2020-10-26 20:01:12,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:12,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028779907] [2020-10-26 20:01:12,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:12,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:12,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:12,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-26 20:01:12,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:12,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-26 20:01:12,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-26 20:01:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:01:12,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:12,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:12,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:12,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:12,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:12,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:12,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:01:12,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:12,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:12,362 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2020-10-26 20:01:12,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028779907] [2020-10-26 20:01:12,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:12,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:12,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338948011] [2020-10-26 20:01:12,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:12,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:12,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:12,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:12,365 INFO L87 Difference]: Start difference. First operand 2761 states and 4090 transitions. Second operand 4 states. [2020-10-26 20:01:13,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:13,224 INFO L93 Difference]: Finished difference Result 5964 states and 8978 transitions. [2020-10-26 20:01:13,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:13,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 299 [2020-10-26 20:01:13,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:13,237 INFO L225 Difference]: With dead ends: 5964 [2020-10-26 20:01:13,237 INFO L226 Difference]: Without dead ends: 1618 [2020-10-26 20:01:13,247 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 [2020-10-26 20:01:13,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2020-10-26 20:01:13,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1618. [2020-10-26 20:01:13,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1618 states. [2020-10-26 20:01:13,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2357 transitions. [2020-10-26 20:01:13,342 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2357 transitions. Word has length 299 [2020-10-26 20:01:13,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:13,342 INFO L481 AbstractCegarLoop]: Abstraction has 1618 states and 2357 transitions. [2020-10-26 20:01:13,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:13,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2357 transitions. [2020-10-26 20:01:13,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-10-26 20:01:13,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:13,352 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-26 20:01:13,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:01:13,352 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:13,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:13,353 INFO L82 PathProgramCache]: Analyzing trace with hash 271398484, now seen corresponding path program 1 times [2020-10-26 20:01:13,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:13,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856663065] [2020-10-26 20:01:13,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:13,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:13,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:13,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:14,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:14,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-26 20:01:14,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:01:14,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-10-26 20:01:14,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:14,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-26 20:01:14,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:01:14,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:14,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:14,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:14,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:14,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:14,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:14,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:01:14,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:14,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:14,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:14,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:14,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:14,397 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-10-26 20:01:14,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856663065] [2020-10-26 20:01:14,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:14,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:14,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223952297] [2020-10-26 20:01:14,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:14,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:14,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:14,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:14,400 INFO L87 Difference]: Start difference. First operand 1618 states and 2357 transitions. Second operand 4 states. [2020-10-26 20:01:14,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:14,924 INFO L93 Difference]: Finished difference Result 3489 states and 5165 transitions. [2020-10-26 20:01:14,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:14,925 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 307 [2020-10-26 20:01:14,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:14,935 INFO L225 Difference]: With dead ends: 3489 [2020-10-26 20:01:14,936 INFO L226 Difference]: Without dead ends: 1885 [2020-10-26 20:01:14,940 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 [2020-10-26 20:01:14,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2020-10-26 20:01:15,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1835. [2020-10-26 20:01:15,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1835 states. [2020-10-26 20:01:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2595 transitions. [2020-10-26 20:01:15,037 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2595 transitions. Word has length 307 [2020-10-26 20:01:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:15,037 INFO L481 AbstractCegarLoop]: Abstraction has 1835 states and 2595 transitions. [2020-10-26 20:01:15,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2595 transitions. [2020-10-26 20:01:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-26 20:01:15,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:15,046 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:15,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:01:15,046 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:15,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:15,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1089131661, now seen corresponding path program 1 times [2020-10-26 20:01:15,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:15,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18046530] [2020-10-26 20:01:15,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:15,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:15,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:15,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:15,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:15,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-26 20:01:15,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:01:15,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-10-26 20:01:15,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-26 20:01:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:01:15,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:15,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:15,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:15,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:15,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:15,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:15,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:01:15,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:15,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:15,926 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2020-10-26 20:01:15,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18046530] [2020-10-26 20:01:15,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:15,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:15,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688754475] [2020-10-26 20:01:15,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:15,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:15,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:15,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:15,929 INFO L87 Difference]: Start difference. First operand 1835 states and 2595 transitions. Second operand 4 states. [2020-10-26 20:01:16,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:16,472 INFO L93 Difference]: Finished difference Result 3815 states and 5374 transitions. [2020-10-26 20:01:16,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:16,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 316 [2020-10-26 20:01:16,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:16,484 INFO L225 Difference]: With dead ends: 3815 [2020-10-26 20:01:16,485 INFO L226 Difference]: Without dead ends: 1994 [2020-10-26 20:01:16,490 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 [2020-10-26 20:01:16,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2020-10-26 20:01:16,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1973. [2020-10-26 20:01:16,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1973 states. [2020-10-26 20:01:16,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2763 transitions. [2020-10-26 20:01:16,583 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2763 transitions. Word has length 316 [2020-10-26 20:01:16,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:16,583 INFO L481 AbstractCegarLoop]: Abstraction has 1973 states and 2763 transitions. [2020-10-26 20:01:16,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:16,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2763 transitions. [2020-10-26 20:01:16,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-26 20:01:16,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:16,593 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:16,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:01:16,593 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:16,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:16,594 INFO L82 PathProgramCache]: Analyzing trace with hash 2009028063, now seen corresponding path program 1 times [2020-10-26 20:01:16,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:16,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990424220] [2020-10-26 20:01:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:16,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:16,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:16,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:17,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:17,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-26 20:01:17,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:01:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 811 [2020-10-26 20:01:17,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-26 20:01:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:01:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:17,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:17,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:17,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:17,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:17,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:01:17,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:17,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:17,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:17,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2020-10-26 20:01:17,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990424220] [2020-10-26 20:01:17,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:17,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:17,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161975971] [2020-10-26 20:01:17,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:17,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:17,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:17,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:17,606 INFO L87 Difference]: Start difference. First operand 1973 states and 2763 transitions. Second operand 4 states. [2020-10-26 20:01:18,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:18,203 INFO L93 Difference]: Finished difference Result 4191 states and 5879 transitions. [2020-10-26 20:01:18,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:18,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 336 [2020-10-26 20:01:18,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:18,215 INFO L225 Difference]: With dead ends: 4191 [2020-10-26 20:01:18,215 INFO L226 Difference]: Without dead ends: 2232 [2020-10-26 20:01:18,222 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 [2020-10-26 20:01:18,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2020-10-26 20:01:18,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2148. [2020-10-26 20:01:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2148 states. [2020-10-26 20:01:18,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 2973 transitions. [2020-10-26 20:01:18,339 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 2973 transitions. Word has length 336 [2020-10-26 20:01:18,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:18,339 INFO L481 AbstractCegarLoop]: Abstraction has 2148 states and 2973 transitions. [2020-10-26 20:01:18,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:18,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 2973 transitions. [2020-10-26 20:01:18,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-26 20:01:18,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:18,351 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:18,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:01:18,351 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:18,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:18,352 INFO L82 PathProgramCache]: Analyzing trace with hash -2130250645, now seen corresponding path program 1 times [2020-10-26 20:01:18,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:18,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629462596] [2020-10-26 20:01:18,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:18,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:18,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:18,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:19,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:19,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-26 20:01:19,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:01:19,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 714 [2020-10-26 20:01:19,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:19,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-26 20:01:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:01:19,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:19,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:19,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:19,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:19,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:19,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:19,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:01:19,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:19,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 646 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-26 20:01:19,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629462596] [2020-10-26 20:01:19,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:19,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:19,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476632370] [2020-10-26 20:01:19,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:19,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:19,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:19,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:19,302 INFO L87 Difference]: Start difference. First operand 2148 states and 2973 transitions. Second operand 4 states. [2020-10-26 20:01:19,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:19,851 INFO L93 Difference]: Finished difference Result 4760 states and 6688 transitions. [2020-10-26 20:01:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:19,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 362 [2020-10-26 20:01:19,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:19,865 INFO L225 Difference]: With dead ends: 4760 [2020-10-26 20:01:19,865 INFO L226 Difference]: Without dead ends: 2550 [2020-10-26 20:01:19,872 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 [2020-10-26 20:01:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2020-10-26 20:01:19,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2472. [2020-10-26 20:01:19,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2472 states. [2020-10-26 20:01:19,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3447 transitions. [2020-10-26 20:01:19,975 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3447 transitions. Word has length 362 [2020-10-26 20:01:19,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:19,976 INFO L481 AbstractCegarLoop]: Abstraction has 2472 states and 3447 transitions. [2020-10-26 20:01:19,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:19,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3447 transitions. [2020-10-26 20:01:19,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2020-10-26 20:01:19,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:19,987 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:19,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:01:19,987 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:19,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:19,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2021514352, now seen corresponding path program 1 times [2020-10-26 20:01:19,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:19,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109688076] [2020-10-26 20:01:19,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:20,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:20,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:20,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:20,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:20,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 395 [2020-10-26 20:01:20,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:01:20,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-10-26 20:01:20,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:20,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:20,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-26 20:01:20,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:01:20,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:20,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:20,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:20,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:20,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:20,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:20,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:01:20,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:20,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:20,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:21,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 800 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2020-10-26 20:01:21,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109688076] [2020-10-26 20:01:21,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:21,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:21,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326620077] [2020-10-26 20:01:21,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:21,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:21,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:21,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:21,053 INFO L87 Difference]: Start difference. First operand 2472 states and 3447 transitions. Second operand 4 states. [2020-10-26 20:01:21,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:21,584 INFO L93 Difference]: Finished difference Result 5008 states and 6976 transitions. [2020-10-26 20:01:21,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:21,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 385 [2020-10-26 20:01:21,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:21,598 INFO L225 Difference]: With dead ends: 5008 [2020-10-26 20:01:21,598 INFO L226 Difference]: Without dead ends: 2488 [2020-10-26 20:01:21,604 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 [2020-10-26 20:01:21,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2020-10-26 20:01:21,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2210. [2020-10-26 20:01:21,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2210 states. [2020-10-26 20:01:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2210 states to 2210 states and 3063 transitions. [2020-10-26 20:01:21,699 INFO L78 Accepts]: Start accepts. Automaton has 2210 states and 3063 transitions. Word has length 385 [2020-10-26 20:01:21,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:21,699 INFO L481 AbstractCegarLoop]: Abstraction has 2210 states and 3063 transitions. [2020-10-26 20:01:21,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2210 states and 3063 transitions. [2020-10-26 20:01:21,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2020-10-26 20:01:21,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:21,711 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:21,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 20:01:21,712 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:21,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:21,713 INFO L82 PathProgramCache]: Analyzing trace with hash 327871641, now seen corresponding path program 1 times [2020-10-26 20:01:21,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:21,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294204656] [2020-10-26 20:01:21,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:21,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:21,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:22,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:22,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:22,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 428 [2020-10-26 20:01:22,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:01:22,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1221 [2020-10-26 20:01:22,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:22,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-26 20:01:22,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-26 20:01:22,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-26 20:01:22,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:23,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:23,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:23,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:23,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:23,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:01:23,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:23,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:23,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 1046 proven. 26 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2020-10-26 20:01:23,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294204656] [2020-10-26 20:01:23,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:01:23,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:01:23,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507155486] [2020-10-26 20:01:23,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:01:23,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:23,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:01:23,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:01:23,229 INFO L87 Difference]: Start difference. First operand 2210 states and 3063 transitions. Second operand 5 states. [2020-10-26 20:01:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:24,382 INFO L93 Difference]: Finished difference Result 6230 states and 8580 transitions. [2020-10-26 20:01:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:01:24,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 418 [2020-10-26 20:01:24,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:24,420 INFO L225 Difference]: With dead ends: 6230 [2020-10-26 20:01:24,420 INFO L226 Difference]: Without dead ends: 4241 [2020-10-26 20:01:24,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:01:24,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4241 states. [2020-10-26 20:01:24,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4241 to 3281. [2020-10-26 20:01:24,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3281 states. [2020-10-26 20:01:24,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4529 transitions. [2020-10-26 20:01:24,578 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4529 transitions. Word has length 418 [2020-10-26 20:01:24,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:24,579 INFO L481 AbstractCegarLoop]: Abstraction has 3281 states and 4529 transitions. [2020-10-26 20:01:24,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:01:24,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4529 transitions. [2020-10-26 20:01:24,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2020-10-26 20:01:24,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:24,588 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:24,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 20:01:24,589 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:24,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:24,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1469802688, now seen corresponding path program 1 times [2020-10-26 20:01:24,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:24,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074106953] [2020-10-26 20:01:24,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:24,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:24,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:24,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:25,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:25,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 459 [2020-10-26 20:01:25,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:01:25,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 789 [2020-10-26 20:01:25,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-10-26 20:01:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 20:01:25,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:25,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:25,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:25,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:25,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:25,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:25,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:01:25,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2007 backedges. 1153 proven. 0 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2020-10-26 20:01:25,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074106953] [2020-10-26 20:01:25,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:25,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:25,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543454983] [2020-10-26 20:01:25,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:25,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:25,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:25,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:25,670 INFO L87 Difference]: Start difference. First operand 3281 states and 4529 transitions. Second operand 4 states. [2020-10-26 20:01:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:26,255 INFO L93 Difference]: Finished difference Result 6944 states and 9612 transitions. [2020-10-26 20:01:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:26,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 449 [2020-10-26 20:01:26,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:26,266 INFO L225 Difference]: With dead ends: 6944 [2020-10-26 20:01:26,266 INFO L226 Difference]: Without dead ends: 3677 [2020-10-26 20:01:26,274 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 [2020-10-26 20:01:26,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3677 states. [2020-10-26 20:01:26,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3677 to 3655. [2020-10-26 20:01:26,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3655 states. [2020-10-26 20:01:26,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 4958 transitions. [2020-10-26 20:01:26,457 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 4958 transitions. Word has length 449 [2020-10-26 20:01:26,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:26,457 INFO L481 AbstractCegarLoop]: Abstraction has 3655 states and 4958 transitions. [2020-10-26 20:01:26,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 4958 transitions. [2020-10-26 20:01:26,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2020-10-26 20:01:26,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:26,467 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 7, 7, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:26,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 20:01:26,467 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:26,468 INFO L82 PathProgramCache]: Analyzing trace with hash -118070055, now seen corresponding path program 1 times [2020-10-26 20:01:26,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:26,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751238225] [2020-10-26 20:01:26,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:26,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:26,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:26,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:27,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:27,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 490 [2020-10-26 20:01:27,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:01:27,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-10-26 20:01:27,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:27,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:27,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 218 [2020-10-26 20:01:27,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:01:27,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:27,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:27,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:27,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:27,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:27,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:27,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:01:27,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:27,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:27,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2347 backedges. 1363 proven. 0 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2020-10-26 20:01:27,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751238225] [2020-10-26 20:01:27,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:27,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:27,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772364741] [2020-10-26 20:01:27,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:27,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:27,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:27,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:27,629 INFO L87 Difference]: Start difference. First operand 3655 states and 4958 transitions. Second operand 4 states. [2020-10-26 20:01:28,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:28,256 INFO L93 Difference]: Finished difference Result 7714 states and 10514 transitions. [2020-10-26 20:01:28,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:28,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 480 [2020-10-26 20:01:28,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:28,265 INFO L225 Difference]: With dead ends: 7714 [2020-10-26 20:01:28,266 INFO L226 Difference]: Without dead ends: 4073 [2020-10-26 20:01:28,274 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 [2020-10-26 20:01:28,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2020-10-26 20:01:28,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4051. [2020-10-26 20:01:28,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4051 states. [2020-10-26 20:01:28,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4051 states to 4051 states and 5409 transitions. [2020-10-26 20:01:28,413 INFO L78 Accepts]: Start accepts. Automaton has 4051 states and 5409 transitions. Word has length 480 [2020-10-26 20:01:28,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:28,414 INFO L481 AbstractCegarLoop]: Abstraction has 4051 states and 5409 transitions. [2020-10-26 20:01:28,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 4051 states and 5409 transitions. [2020-10-26 20:01:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2020-10-26 20:01:28,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:28,424 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 7, 6, 6, 6, 6, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:28,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 20:01:28,424 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:28,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:28,425 INFO L82 PathProgramCache]: Analyzing trace with hash -823672568, now seen corresponding path program 1 times [2020-10-26 20:01:28,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:28,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227286426] [2020-10-26 20:01:28,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:28,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:28,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:28,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:28,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:30,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:30,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 499 [2020-10-26 20:01:30,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:01:30,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2169 [2020-10-26 20:01:30,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-26 20:01:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:01:30,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:30,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:30,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:30,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:30,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:30,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:30,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:01:30,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:30,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:30,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:30,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:30,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:30,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2482 backedges. 1272 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2020-10-26 20:01:30,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227286426] [2020-10-26 20:01:30,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:30,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:30,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843636048] [2020-10-26 20:01:30,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:30,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:30,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:30,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:30,899 INFO L87 Difference]: Start difference. First operand 4051 states and 5409 transitions. Second operand 4 states. [2020-10-26 20:01:31,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:31,499 INFO L93 Difference]: Finished difference Result 8164 states and 10966 transitions. [2020-10-26 20:01:31,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:31,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 489 [2020-10-26 20:01:31,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:31,510 INFO L225 Difference]: With dead ends: 8164 [2020-10-26 20:01:31,510 INFO L226 Difference]: Without dead ends: 4404 [2020-10-26 20:01:31,518 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 [2020-10-26 20:01:31,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4404 states. [2020-10-26 20:01:31,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4404 to 4278. [2020-10-26 20:01:31,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4278 states. [2020-10-26 20:01:31,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4278 states to 4278 states and 5746 transitions. [2020-10-26 20:01:31,672 INFO L78 Accepts]: Start accepts. Automaton has 4278 states and 5746 transitions. Word has length 489 [2020-10-26 20:01:31,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:31,673 INFO L481 AbstractCegarLoop]: Abstraction has 4278 states and 5746 transitions. [2020-10-26 20:01:31,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:31,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4278 states and 5746 transitions. [2020-10-26 20:01:31,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2020-10-26 20:01:31,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:31,683 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:31,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-26 20:01:31,683 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:31,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:31,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1605970079, now seen corresponding path program 1 times [2020-10-26 20:01:31,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:31,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801326297] [2020-10-26 20:01:31,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:31,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:31,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:31,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:31,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:32,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:35,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:35,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 515 [2020-10-26 20:01:35,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:01:35,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4176 [2020-10-26 20:01:35,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-26 20:01:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:01:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:35,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:35,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:36,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:36,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:36,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:36,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:01:36,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:36,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2688 backedges. 1398 proven. 0 refuted. 0 times theorem prover too weak. 1290 trivial. 0 not checked. [2020-10-26 20:01:36,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801326297] [2020-10-26 20:01:36,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:36,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:36,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224420875] [2020-10-26 20:01:36,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:36,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:36,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:36,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:36,146 INFO L87 Difference]: Start difference. First operand 4278 states and 5746 transitions. Second operand 4 states. [2020-10-26 20:01:36,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:36,707 INFO L93 Difference]: Finished difference Result 8310 states and 11132 transitions. [2020-10-26 20:01:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:36,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 505 [2020-10-26 20:01:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:36,717 INFO L225 Difference]: With dead ends: 8310 [2020-10-26 20:01:36,718 INFO L226 Difference]: Without dead ends: 3932 [2020-10-26 20:01:36,726 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 [2020-10-26 20:01:36,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3932 states. [2020-10-26 20:01:36,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3932 to 2763. [2020-10-26 20:01:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2763 states. [2020-10-26 20:01:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3592 transitions. [2020-10-26 20:01:36,835 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3592 transitions. Word has length 505 [2020-10-26 20:01:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:36,835 INFO L481 AbstractCegarLoop]: Abstraction has 2763 states and 3592 transitions. [2020-10-26 20:01:36,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:36,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3592 transitions. [2020-10-26 20:01:36,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2020-10-26 20:01:36,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:36,844 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:36,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-26 20:01:36,844 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:36,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:36,845 INFO L82 PathProgramCache]: Analyzing trace with hash 395381916, now seen corresponding path program 1 times [2020-10-26 20:01:36,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:36,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926365983] [2020-10-26 20:01:36,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:36,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:36,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:37,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:37,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:38,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:38,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 517 [2020-10-26 20:01:38,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:01:38,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2080 [2020-10-26 20:01:38,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:01:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-10-26 20:01:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:01:38,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:39,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:39,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:39,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:39,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:39,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:39,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:01:39,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:39,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2716 backedges. 1402 proven. 0 refuted. 0 times theorem prover too weak. 1314 trivial. 0 not checked. [2020-10-26 20:01:39,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926365983] [2020-10-26 20:01:39,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:01:39,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:01:39,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356627176] [2020-10-26 20:01:39,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:01:39,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:39,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:01:39,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:01:39,313 INFO L87 Difference]: Start difference. First operand 2763 states and 3592 transitions. Second operand 4 states. [2020-10-26 20:01:39,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:39,847 INFO L93 Difference]: Finished difference Result 5546 states and 7229 transitions. [2020-10-26 20:01:39,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:01:39,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 507 [2020-10-26 20:01:39,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:39,860 INFO L225 Difference]: With dead ends: 5546 [2020-10-26 20:01:39,861 INFO L226 Difference]: Without dead ends: 2797 [2020-10-26 20:01:39,867 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 [2020-10-26 20:01:39,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2020-10-26 20:01:39,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2763. [2020-10-26 20:01:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2763 states. [2020-10-26 20:01:39,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3577 transitions. [2020-10-26 20:01:39,969 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3577 transitions. Word has length 507 [2020-10-26 20:01:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:39,970 INFO L481 AbstractCegarLoop]: Abstraction has 2763 states and 3577 transitions. [2020-10-26 20:01:39,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:01:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3577 transitions. [2020-10-26 20:01:39,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2020-10-26 20:01:39,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:01:39,978 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 9, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:01:39,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-26 20:01:39,978 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:01:39,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:01:39,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1713224645, now seen corresponding path program 1 times [2020-10-26 20:01:39,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:01:39,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133978805] [2020-10-26 20:01:39,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:01:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:40,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:40,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:40,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 523 [2020-10-26 20:01:40,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-26 20:01:40,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-26 20:01:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 371 [2020-10-26 20:01:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:01:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:40,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:01:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:01:40,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:01:40,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:01:40,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:01:40,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:01:40,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:01:40,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:01:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:01:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:01:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:01:40,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:01:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2728 backedges. 1309 proven. 26 refuted. 0 times theorem prover too weak. 1393 trivial. 0 not checked. [2020-10-26 20:01:40,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133978805] [2020-10-26 20:01:40,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:01:40,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:01:40,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227203337] [2020-10-26 20:01:40,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:01:40,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:01:40,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:01:40,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:01:40,456 INFO L87 Difference]: Start difference. First operand 2763 states and 3577 transitions. Second operand 5 states. [2020-10-26 20:01:41,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:01:41,251 INFO L93 Difference]: Finished difference Result 3963 states and 5140 transitions. [2020-10-26 20:01:41,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:01:41,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 513 [2020-10-26 20:01:41,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:01:41,252 INFO L225 Difference]: With dead ends: 3963 [2020-10-26 20:01:41,252 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:01:41,261 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 [2020-10-26 20:01:41,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:01:41,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:01:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:01:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:01:41,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 513 [2020-10-26 20:01:41,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:01:41,262 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:01:41,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:01:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:01:41,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:01:41,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-26 20:01:41,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:01:41,382 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2020-10-26 20:01:42,649 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 175 [2020-10-26 20:01:43,297 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 160 [2020-10-26 20:01:43,563 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 28 [2020-10-26 20:01:43,676 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 14 [2020-10-26 20:01:43,868 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 28 [2020-10-26 20:01:44,070 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 26 [2020-10-26 20:01:44,364 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 29 [2020-10-26 20:01:44,646 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 29 [2020-10-26 20:01:44,749 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 17 [2020-10-26 20:01:44,946 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 28 [2020-10-26 20:01:45,164 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 28 [2020-10-26 20:01:45,377 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 27 [2020-10-26 20:01:45,654 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 29 [2020-10-26 20:01:45,787 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 26 [2020-10-26 20:01:46,077 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 31 [2020-10-26 20:01:47,357 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 154 DAG size of output: 57 [2020-10-26 20:01:47,568 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 26 [2020-10-26 20:01:47,866 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 26 [2020-10-26 20:01:48,019 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 23 [2020-10-26 20:01:48,221 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 29 [2020-10-26 20:01:49,284 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 141 DAG size of output: 53 [2020-10-26 20:01:49,495 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 28 [2020-10-26 20:01:49,783 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 26 [2020-10-26 20:01:49,800 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-26 20:01:49,801 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-26 20:01:49,801 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-26 20:01:49,801 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-26 20:01:49,801 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:01:49,801 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|)) [2020-10-26 20:01:49,801 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:01:49,801 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:01:49,802 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-26 20:01:49,802 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:01:49,802 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:01:49,802 INFO L270 CegarLoopResult]: At program point L688(line 688) the Hoare annotation is: (and (<= 8464 main_~s~0) (<= main_~s~0 8464)) [2020-10-26 20:01:49,802 INFO L274 CegarLoopResult]: For program point L688-1(line 688) no Hoare annotation was computed. [2020-10-26 20:01:49,802 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 681 692) the Hoare annotation is: true [2020-10-26 20:01:49,802 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 681 692) no Hoare annotation was computed. [2020-10-26 20:01:49,803 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 681 692) no Hoare annotation was computed. [2020-10-26 20:01:49,803 INFO L270 CegarLoopResult]: At program point L168(lines 167 609) the Hoare annotation is: (let ((.cse3 (<= ssl3_accept_~blastFlag~0 2)) (.cse2 (not (= ssl3_accept_~s__hit~0 0))) (.cse0 (<= ssl3_accept_~blastFlag~0 3)) (.cse1 (= 8448 ssl3_accept_~s__state~0))) (or (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)) (and .cse2 .cse3 .cse1) (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse3 (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1) (and .cse2 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) .cse0 .cse1))) [2020-10-26 20:01:49,803 INFO L270 CegarLoopResult]: At program point L135(lines 128 622) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640)) (.cse3 (<= ssl3_accept_~blastFlag~0 2)) (.cse2 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640)) (.cse4 (<= ssl3_accept_~s__state~0 8466))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2 (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 .cse1 .cse3) (and (<= ssl3_accept_~blastFlag~0 1) .cse4) (and .cse3 .cse2 .cse4))) [2020-10-26 20:01:49,803 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 20:01:49,803 INFO L274 CegarLoopResult]: For program point L631(lines 631 659) no Hoare annotation was computed. [2020-10-26 20:01:49,803 INFO L274 CegarLoopResult]: For program point L466(lines 466 470) no Hoare annotation was computed. [2020-10-26 20:01:49,803 INFO L274 CegarLoopResult]: For program point L632(lines 632 656) no Hoare annotation was computed. [2020-10-26 20:01:49,804 INFO L274 CegarLoopResult]: For program point L566(lines 566 570) no Hoare annotation was computed. [2020-10-26 20:01:49,804 INFO L274 CegarLoopResult]: For program point L500(lines 500 504) no Hoare annotation was computed. [2020-10-26 20:01:49,804 INFO L274 CegarLoopResult]: For program point L566-2(lines 566 570) no Hoare annotation was computed. [2020-10-26 20:01:49,804 INFO L274 CegarLoopResult]: For program point L500-2(lines 211 592) no Hoare annotation was computed. [2020-10-26 20:01:49,804 INFO L274 CegarLoopResult]: For program point L203(lines 203 597) no Hoare annotation was computed. [2020-10-26 20:01:49,804 INFO L274 CegarLoopResult]: For program point L170(lines 170 608) no Hoare annotation was computed. [2020-10-26 20:01:49,804 INFO L274 CegarLoopResult]: For program point L137(lines 137 619) no Hoare annotation was computed. [2020-10-26 20:01:49,804 INFO L274 CegarLoopResult]: For program point L104(lines 104 630) no Hoare annotation was computed. [2020-10-26 20:01:49,804 INFO L274 CegarLoopResult]: For program point L666(lines 666 670) no Hoare annotation was computed. [2020-10-26 20:01:49,804 INFO L274 CegarLoopResult]: For program point L633(lines 633 642) no Hoare annotation was computed. [2020-10-26 20:01:49,805 INFO L274 CegarLoopResult]: For program point L666-2(lines 666 670) no Hoare annotation was computed. [2020-10-26 20:01:49,805 INFO L274 CegarLoopResult]: For program point L633-2(lines 632 654) no Hoare annotation was computed. [2020-10-26 20:01:49,805 INFO L274 CegarLoopResult]: For program point L270(lines 270 274) no Hoare annotation was computed. [2020-10-26 20:01:49,805 INFO L270 CegarLoopResult]: At program point L204(lines 200 598) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and (<= ssl3_accept_~blastFlag~0 3) (<= 8672 ssl3_accept_~s__state~0))) [2020-10-26 20:01:49,805 INFO L270 CegarLoopResult]: At program point L105(lines 104 630) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and (not (= ssl3_accept_~s__hit~0 0)) (<= ssl3_accept_~blastFlag~0 2) (not (= ssl3_accept_~s__state~0 8672)) (<= 8672 ssl3_accept_~s__state~0))) [2020-10-26 20:01:49,805 INFO L274 CegarLoopResult]: For program point L304(lines 304 308) no Hoare annotation was computed. [2020-10-26 20:01:49,805 INFO L274 CegarLoopResult]: For program point L304-2(lines 211 592) no Hoare annotation was computed. [2020-10-26 20:01:49,805 INFO L274 CegarLoopResult]: For program point L635(lines 635 639) no Hoare annotation was computed. [2020-10-26 20:01:49,806 INFO L274 CegarLoopResult]: For program point L206(lines 206 596) no Hoare annotation was computed. [2020-10-26 20:01:49,806 INFO L274 CegarLoopResult]: For program point L173(lines 173 607) no Hoare annotation was computed. [2020-10-26 20:01:49,806 INFO L274 CegarLoopResult]: For program point L140(lines 140 618) no Hoare annotation was computed. [2020-10-26 20:01:49,806 INFO L274 CegarLoopResult]: For program point L107(lines 107 629) no Hoare annotation was computed. [2020-10-26 20:01:49,806 INFO L274 CegarLoopResult]: For program point L339(lines 339 343) no Hoare annotation was computed. [2020-10-26 20:01:49,806 INFO L274 CegarLoopResult]: For program point L339-2(lines 211 592) no Hoare annotation was computed. [2020-10-26 20:01:49,806 INFO L270 CegarLoopResult]: At program point L207(lines 206 596) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (not (= ssl3_accept_~s__state~0 8672))) [2020-10-26 20:01:49,806 INFO L270 CegarLoopResult]: At program point L174(lines 170 608) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640)) (.cse2 (<= ssl3_accept_~blastFlag~0 2)) (.cse3 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 (<= ssl3_accept_~blastFlag~0 3)) (and (<= 8512 ssl3_accept_~s__state~0) .cse1 .cse2 .cse3))) [2020-10-26 20:01:49,807 INFO L270 CegarLoopResult]: At program point L141(lines 137 619) the Hoare annotation is: (let ((.cse1 (<= ssl3_accept_~blastFlag~0 2)) (.cse4 (not (= ssl3_accept_~s__hit~0 0))) (.cse5 (<= ssl3_accept_~s__state~0 8640)) (.cse2 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640)) (.cse0 (<= ssl3_accept_~s__state~0 8544)) (.cse3 (<= 8496 ssl3_accept_~s__state~0))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and .cse0 .cse1 .cse2 .cse3) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse4 .cse5 .cse1) (and .cse4 .cse5 .cse2 (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 (<= ssl3_accept_~blastFlag~0 1) .cse3))) [2020-10-26 20:01:49,807 INFO L274 CegarLoopResult]: For program point L75(lines 75 83) no Hoare annotation was computed. [2020-10-26 20:01:49,807 INFO L274 CegarLoopResult]: For program point L439(lines 439 451) no Hoare annotation was computed. [2020-10-26 20:01:49,807 INFO L270 CegarLoopResult]: At program point L406(lines 397 417) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640)) (.cse2 (<= ssl3_accept_~blastFlag~0 2))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) .cse2))) [2020-10-26 20:01:49,807 INFO L274 CegarLoopResult]: For program point L439-2(lines 439 451) no Hoare annotation was computed. [2020-10-26 20:01:49,807 INFO L277 CegarLoopResult]: At program point ssl3_acceptENTRY(lines 12 680) the Hoare annotation is: true [2020-10-26 20:01:49,807 INFO L274 CegarLoopResult]: For program point L176(lines 176 606) no Hoare annotation was computed. [2020-10-26 20:01:49,807 INFO L274 CegarLoopResult]: For program point L143(lines 143 617) no Hoare annotation was computed. [2020-10-26 20:01:49,807 INFO L274 CegarLoopResult]: For program point L110(lines 110 628) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L270 CegarLoopResult]: At program point L210(lines 209 595) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (not (= ssl3_accept_~s__state~0 8672))) [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L78(lines 78 82) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L78-2(lines 75 83) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L673(line 673) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L541(lines 541 546) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L442(lines 442 447) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L244(lines 244 249) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L179(lines 179 605) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L146(lines 146 616) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L113(lines 113 627) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L576(lines 576 586) no Hoare annotation was computed. [2020-10-26 20:01:49,808 INFO L274 CegarLoopResult]: For program point L576-1(lines 576 586) no Hoare annotation was computed. [2020-10-26 20:01:49,809 INFO L274 CegarLoopResult]: For program point L510(lines 510 514) no Hoare annotation was computed. [2020-10-26 20:01:49,809 INFO L274 CegarLoopResult]: For program point L510-2(lines 510 514) no Hoare annotation was computed. [2020-10-26 20:01:49,809 INFO L270 CegarLoopResult]: At program point L180(lines 176 606) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640)) (.cse2 (<= ssl3_accept_~blastFlag~0 2)) (.cse3 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 (<= ssl3_accept_~blastFlag~0 3)) (and (<= 8512 ssl3_accept_~s__state~0) .cse1 .cse2 .cse3))) [2020-10-26 20:01:49,809 INFO L270 CegarLoopResult]: At program point L147(lines 143 617) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640)) (.cse2 (<= ssl3_accept_~blastFlag~0 2))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8544) (<= 8512 ssl3_accept_~s__state~0) .cse2))) [2020-10-26 20:01:49,809 INFO L274 CegarLoopResult]: For program point L478(lines 478 482) no Hoare annotation was computed. [2020-10-26 20:01:49,809 INFO L270 CegarLoopResult]: At program point L214(lines 107 629) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0)))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 (<= ssl3_accept_~s__state~0 8640) (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 (<= ssl3_accept_~blastFlag~0 2) (not (= ssl3_accept_~s__state~0 8672))))) [2020-10-26 20:01:49,809 INFO L277 CegarLoopResult]: At program point L677(lines 67 679) the Hoare annotation is: true [2020-10-26 20:01:49,809 INFO L274 CegarLoopResult]: For program point L644(lines 644 650) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L347(lines 347 379) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L314(lines 314 318) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L314-2(lines 314 318) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L182(lines 182 604) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L149(lines 149 615) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L116(lines 116 626) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L579(lines 579 583) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L85(lines 85 93) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L85-1(lines 67 679) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L350(lines 350 378) no Hoare annotation was computed. [2020-10-26 20:01:49,810 INFO L274 CegarLoopResult]: For program point L350-1(lines 350 378) no Hoare annotation was computed. [2020-10-26 20:01:49,811 INFO L274 CegarLoopResult]: For program point L251(lines 251 264) no Hoare annotation was computed. [2020-10-26 20:01:49,811 INFO L274 CegarLoopResult]: For program point L185(lines 185 603) no Hoare annotation was computed. [2020-10-26 20:01:49,811 INFO L274 CegarLoopResult]: For program point L152(lines 152 614) no Hoare annotation was computed. [2020-10-26 20:01:49,811 INFO L274 CegarLoopResult]: For program point L119(lines 119 625) no Hoare annotation was computed. [2020-10-26 20:01:49,811 INFO L274 CegarLoopResult]: For program point L86(lines 86 90) no Hoare annotation was computed. [2020-10-26 20:01:49,811 INFO L274 CegarLoopResult]: For program point L351(lines 351 375) no Hoare annotation was computed. [2020-10-26 20:01:49,811 INFO L274 CegarLoopResult]: For program point L219(lines 219 223) no Hoare annotation was computed. [2020-10-26 20:01:49,811 INFO L270 CegarLoopResult]: At program point L186(lines 182 604) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640)) (.cse2 (<= ssl3_accept_~blastFlag~0 2)) (.cse3 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 (<= ssl3_accept_~blastFlag~0 3)) (and (<= 8512 ssl3_accept_~s__state~0) .cse1 .cse2 .cse3))) [2020-10-26 20:01:49,811 INFO L270 CegarLoopResult]: At program point L153(lines 149 615) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640)) (.cse2 (<= ssl3_accept_~blastFlag~0 2))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8544) (<= 8512 ssl3_accept_~s__state~0) .cse2))) [2020-10-26 20:01:49,811 INFO L274 CegarLoopResult]: For program point L219-2(lines 211 592) no Hoare annotation was computed. [2020-10-26 20:01:49,811 INFO L274 CegarLoopResult]: For program point L253(lines 253 258) no Hoare annotation was computed. [2020-10-26 20:01:49,811 INFO L274 CegarLoopResult]: For program point L551(lines 551 559) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point L287(lines 287 291) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point L287-2(lines 211 592) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point L188(lines 188 602) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point L155(lines 155 613) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point L122(lines 122 624) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point ssl3_acceptEXIT(lines 12 680) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point L387(lines 387 418) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point L354(lines 354 374) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L270 CegarLoopResult]: At program point L123(lines 119 625) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 (<= ssl3_accept_~blastFlag~0 2)) (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point L388(lines 388 394) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point L554(lines 554 558) no Hoare annotation was computed. [2020-10-26 20:01:49,812 INFO L274 CegarLoopResult]: For program point L521(lines 521 526) no Hoare annotation was computed. [2020-10-26 20:01:49,813 INFO L274 CegarLoopResult]: For program point L356(lines 356 360) no Hoare annotation was computed. [2020-10-26 20:01:49,813 INFO L274 CegarLoopResult]: For program point L323-1(lines 323 332) no Hoare annotation was computed. [2020-10-26 20:01:49,813 INFO L274 CegarLoopResult]: For program point L356-2(lines 354 372) no Hoare annotation was computed. [2020-10-26 20:01:49,813 INFO L274 CegarLoopResult]: For program point L191(lines 191 601) no Hoare annotation was computed. [2020-10-26 20:01:49,813 INFO L274 CegarLoopResult]: For program point L158(lines 158 612) no Hoare annotation was computed. [2020-10-26 20:01:49,813 INFO L274 CegarLoopResult]: For program point L125(lines 125 623) no Hoare annotation was computed. [2020-10-26 20:01:49,813 INFO L274 CegarLoopResult]: For program point ssl3_acceptFINAL(lines 12 680) no Hoare annotation was computed. [2020-10-26 20:01:49,813 INFO L270 CegarLoopResult]: At program point L555(lines 67 679) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464))) [2020-10-26 20:01:49,813 INFO L274 CegarLoopResult]: For program point L489(lines 489 493) no Hoare annotation was computed. [2020-10-26 20:01:49,814 INFO L270 CegarLoopResult]: At program point L192(lines 188 602) the Hoare annotation is: (let ((.cse2 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640)) (.cse0 (<= ssl3_accept_~s__state~0 8672)) (.cse1 (not (= ssl3_accept_~s__hit~0 0))) (.cse4 (<= ssl3_accept_~blastFlag~0 2)) (.cse3 (not (= ssl3_accept_~s__state~0 8672)))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (<= 8512 ssl3_accept_~s__state~0) .cse4 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse3))) [2020-10-26 20:01:49,814 INFO L270 CegarLoopResult]: At program point L159(lines 155 613) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640)) (.cse2 (<= ssl3_accept_~blastFlag~0 2))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) .cse2))) [2020-10-26 20:01:49,814 INFO L270 CegarLoopResult]: At program point L126(lines 125 623) the Hoare annotation is: (let ((.cse0 (<= ssl3_accept_~s__state~0 8640))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640)) (and .cse0 (<= ssl3_accept_~blastFlag~0 2)))) [2020-10-26 20:01:49,814 INFO L274 CegarLoopResult]: For program point L457(lines 457 461) no Hoare annotation was computed. [2020-10-26 20:01:49,814 INFO L274 CegarLoopResult]: For program point L194(lines 194 600) no Hoare annotation was computed. [2020-10-26 20:01:49,814 INFO L274 CegarLoopResult]: For program point L161(lines 161 611) no Hoare annotation was computed. [2020-10-26 20:01:49,814 INFO L274 CegarLoopResult]: For program point L128(lines 128 622) no Hoare annotation was computed. [2020-10-26 20:01:49,814 INFO L274 CegarLoopResult]: For program point L327(lines 327 331) no Hoare annotation was computed. [2020-10-26 20:01:49,815 INFO L270 CegarLoopResult]: At program point L593(lines 101 661) the Hoare annotation is: (let ((.cse4 (<= 8496 ssl3_accept_~s__state~0)) (.cse5 (not (= ssl3_accept_~s__hit~0 0))) (.cse0 (<= ssl3_accept_~blastFlag~0 3)) (.cse8 (<= ssl3_accept_~s__state~0 3)) (.cse1 (= 8448 ssl3_accept_~s__state~0)) (.cse6 (<= ssl3_accept_~s__state~0 8560)) (.cse7 (<= ssl3_accept_~s__state~0 8672)) (.cse9 (<= 8512 ssl3_accept_~s__state~0)) (.cse2 (<= ssl3_accept_~blastFlag~0 2)) (.cse3 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640))) (or (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)) (and (<= ssl3_accept_~s__state~0 8640) .cse2 .cse3 .cse4) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse2 .cse3 (<= ssl3_accept_~s__state~0 8466) (<= 8466 ssl3_accept_~s__state~0)) (and .cse5 .cse2) (and .cse6 (<= ssl3_accept_~blastFlag~0 1) .cse4) (and .cse7 .cse0 (<= 8672 ssl3_accept_~s__state~0)) (and .cse8 .cse2) (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and .cse7 .cse5 .cse3 .cse0) (and .cse8 .cse3) (and .cse2 (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1) (and .cse6 .cse9 .cse2) (and .cse7 .cse9 .cse2 .cse3))) [2020-10-26 20:01:49,815 INFO L274 CegarLoopResult]: For program point L560(lines 560 564) no Hoare annotation was computed. [2020-10-26 20:01:49,815 INFO L274 CegarLoopResult]: For program point L428(lines 428 432) no Hoare annotation was computed. [2020-10-26 20:01:49,815 INFO L270 CegarLoopResult]: At program point L362(lines 344 380) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640)) (.cse2 (<= ssl3_accept_~blastFlag~0 2))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8544) (<= 8512 ssl3_accept_~s__state~0) .cse2))) [2020-10-26 20:01:49,815 INFO L274 CegarLoopResult]: For program point L197(lines 197 599) no Hoare annotation was computed. [2020-10-26 20:01:49,815 INFO L274 CegarLoopResult]: For program point L164(lines 164 610) no Hoare annotation was computed. [2020-10-26 20:01:49,815 INFO L274 CegarLoopResult]: For program point L131(lines 131 621) no Hoare annotation was computed. [2020-10-26 20:01:49,815 INFO L274 CegarLoopResult]: For program point L528(lines 528 532) no Hoare annotation was computed. [2020-10-26 20:01:49,815 INFO L274 CegarLoopResult]: For program point L462(lines 462 473) no Hoare annotation was computed. [2020-10-26 20:01:49,816 INFO L274 CegarLoopResult]: For program point L528-2(lines 211 592) no Hoare annotation was computed. [2020-10-26 20:01:49,816 INFO L270 CegarLoopResult]: At program point L396(lines 387 418) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (<= ssl3_accept_~s__state~0 8640)) (.cse2 (<= ssl3_accept_~blastFlag~0 2))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) (<= ssl3_accept_~blastFlag~0 3)) (and (<= ssl3_accept_~s__state~0 8560) (<= 8512 ssl3_accept_~s__state~0) .cse2))) [2020-10-26 20:01:49,816 INFO L274 CegarLoopResult]: For program point L231(lines 231 242) no Hoare annotation was computed. [2020-10-26 20:01:49,816 INFO L270 CegarLoopResult]: At program point L198(lines 194 600) the Hoare annotation is: (let ((.cse1 (not (= ssl3_accept_~s__hit~0 0))) (.cse0 (<= ssl3_accept_~s__state~0 8672)) (.cse2 (<= ssl3_accept_~blastFlag~0 2)) (.cse3 (not (= ssl3_accept_~s__state~0 8672)))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) .cse3 (<= ssl3_accept_~blastFlag~0 3)) (and .cse0 (<= 8512 ssl3_accept_~s__state~0) .cse2 .cse3))) [2020-10-26 20:01:49,816 INFO L270 CegarLoopResult]: At program point L165(lines 161 611) the Hoare annotation is: (let ((.cse1 (<= ssl3_accept_~blastFlag~0 2)) (.cse2 (not (= ssl3_accept_~s__hit~0 0))) (.cse0 (<= ssl3_accept_~s__state~0 8640))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and (<= 8512 ssl3_accept_~s__state~0) .cse0 .cse1) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse2 .cse0 .cse1) (and .cse2 .cse0 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640) (<= ssl3_accept_~blastFlag~0 3)))) [2020-10-26 20:01:49,816 INFO L274 CegarLoopResult]: For program point L231-2(lines 231 242) no Hoare annotation was computed. [2020-10-26 20:01:49,816 INFO L274 CegarLoopResult]: For program point L364(lines 364 368) no Hoare annotation was computed. [2020-10-26 20:01:49,816 INFO L277 CegarLoopResult]: At program point L662(lines 100 663) the Hoare annotation is: true [2020-10-26 20:01:49,817 INFO L274 CegarLoopResult]: For program point L398(lines 398 404) no Hoare annotation was computed. [2020-10-26 20:01:49,817 INFO L274 CegarLoopResult]: For program point L233(lines 233 238) no Hoare annotation was computed. [2020-10-26 20:01:49,817 INFO L274 CegarLoopResult]: For program point L200(lines 200 598) no Hoare annotation was computed. [2020-10-26 20:01:49,817 INFO L274 CegarLoopResult]: For program point L167(lines 167 609) no Hoare annotation was computed. [2020-10-26 20:01:49,817 INFO L274 CegarLoopResult]: For program point L134(lines 134 620) no Hoare annotation was computed. [2020-10-26 20:01:49,817 INFO L270 CegarLoopResult]: At program point L101-2(lines 101 661) the Hoare annotation is: (let ((.cse4 (<= 8496 ssl3_accept_~s__state~0)) (.cse5 (not (= ssl3_accept_~s__hit~0 0))) (.cse0 (<= ssl3_accept_~blastFlag~0 3)) (.cse7 (<= ssl3_accept_~blastFlag~0 1)) (.cse9 (<= ssl3_accept_~s__state~0 3)) (.cse1 (= 8448 ssl3_accept_~s__state~0)) (.cse6 (<= ssl3_accept_~s__state~0 8560)) (.cse8 (<= ssl3_accept_~s__state~0 8672)) (.cse10 (<= 8512 ssl3_accept_~s__state~0)) (.cse2 (<= ssl3_accept_~blastFlag~0 2)) (.cse3 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 8640))) (or (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)) (and (<= ssl3_accept_~s__state~0 8640) .cse2 .cse3 .cse4) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse2 .cse3 (<= ssl3_accept_~s__state~0 8466) (<= 8466 ssl3_accept_~s__state~0)) (and .cse5 .cse2) (and .cse6 .cse7 .cse4) (and .cse8 .cse0 (<= 8672 ssl3_accept_~s__state~0)) (and .cse9 .cse2) (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and .cse8 .cse5 .cse3 .cse0) (and .cse7 (<= ssl3_accept_~s__state~0 8464) (< 8463 ssl3_accept_~s__state~0)) (and .cse9 .cse3) (and .cse2 (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1) (and .cse6 .cse10 .cse2) (and .cse8 .cse10 .cse2 .cse3))) [2020-10-26 20:01:49,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:01:49 BoogieIcfgContainer [2020-10-26 20:01:49,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:01:49,873 INFO L168 Benchmark]: Toolchain (without parser) took 56665.98 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 126.4 MB in the beginning and 725.4 MB in the end (delta: -599.0 MB). Peak memory consumption was 710.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:01:49,874 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:01:49,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.08 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 110.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:01:49,875 INFO L168 Benchmark]: Boogie Preprocessor took 73.33 ms. Allocated memory is still 151.0 MB. Free memory was 110.7 MB in the beginning and 108.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:01:49,875 INFO L168 Benchmark]: RCFGBuilder took 1230.10 ms. Allocated memory is still 151.0 MB. Free memory was 108.1 MB in the beginning and 91.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:01:49,881 INFO L168 Benchmark]: TraceAbstraction took 54814.16 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 91.1 MB in the beginning and 725.4 MB in the end (delta: -634.4 MB). Peak memory consumption was 675.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:01:49,882 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 526.08 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 110.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 73.33 ms. Allocated memory is still 151.0 MB. Free memory was 110.7 MB in the beginning and 108.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1230.10 ms. Allocated memory is still 151.0 MB. Free memory was 108.1 MB in the beginning and 91.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 54814.16 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 91.1 MB in the beginning and 725.4 MB in the end (delta: -634.4 MB). Peak memory consumption was 675.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: (!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (blastFlag <= 3 && 8672 <= s__state) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || ((s__state <= 8544 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || (((8512 <= s__state && s__state <= 8640) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8640) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: ((((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (blastFlag <= 1 && s__state <= 8466)) || ((blastFlag <= 2 && s__s3__tmp__next_state___0 <= 8640) && s__state <= 8466) - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: (!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || !(s__state == 8672) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: ((((((blastFlag <= 3 && 8448 == s__state) && s__s3__tmp__next_state___0 <= 3) || ((!(s__hit == 0) && blastFlag <= 2) && 8448 == s__state)) || !(8464 <= \old(initial_state))) || !(\old(initial_state) <= 8464)) || ((blastFlag <= 2 && 8576 == s__s3__tmp__next_state___0) && 8448 == s__state)) || (((!(s__hit == 0) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3) && 8448 == s__state) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (s__state <= 8640 && s__s3__tmp__next_state___0 <= 8640)) || (s__state <= 8640 && blastFlag <= 2) - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 344]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || ((s__state <= 8544 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (((s__state <= 8672 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 8640) && !(s__state == 8672))) || ((((s__state <= 8672 && 8512 <= s__state) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8640) && !(s__state == 8672))) || (((s__state <= 8672 && !(s__hit == 0)) && blastFlag <= 2) && !(s__state == 8672)) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || ((!(s__hit == 0) && blastFlag <= 2) && !(s__state == 8672)) - InvariantResult [Line: 397]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((!(8464 <= \old(initial_state)) || (((s__state <= 8544 && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8640) && 8496 <= s__state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || ((s__state <= 8544 && blastFlag <= 1) && 8496 <= s__state) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((((((((((blastFlag <= 3 && 8448 == s__state) && s__s3__tmp__next_state___0 <= 3) || (((s__state <= 8640 && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8640) && 8496 <= s__state)) || !(\old(initial_state) <= 8464)) || (((blastFlag <= 2 && s__s3__tmp__next_state___0 <= 8640) && s__state <= 8466) && 8466 <= s__state)) || (!(s__hit == 0) && blastFlag <= 2)) || ((s__state <= 8560 && blastFlag <= 1) && 8496 <= s__state)) || ((s__state <= 8672 && blastFlag <= 3) && 8672 <= s__state)) || (s__state <= 3 && blastFlag <= 2)) || !(8464 <= \old(initial_state))) || (((s__state <= 8672 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || ((blastFlag <= 1 && s__state <= 8464) && 8463 < s__state)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 8640)) || ((blastFlag <= 2 && 8576 == s__s3__tmp__next_state___0) && 8448 == s__state)) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2)) || (((s__state <= 8672 && 8512 <= s__state) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8640) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || (((8512 <= s__state && s__state <= 8640) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8640) - InvariantResult [Line: 206]: Loop Invariant Derived loop invariant: (!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || !(s__state == 8672) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || ((8512 <= s__state && s__state <= 8640) && blastFlag <= 2)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (((s__state <= 8672 && !(s__hit == 0)) && blastFlag <= 2) && !(s__state == 8672))) || ((((s__state <= 8672 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 8640) && !(s__state == 8672)) && blastFlag <= 3)) || (((s__state <= 8672 && 8512 <= s__state) && blastFlag <= 2) && !(s__state == 8672)) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((((((((((((((blastFlag <= 3 && 8448 == s__state) && s__s3__tmp__next_state___0 <= 3) || (((s__state <= 8640 && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8640) && 8496 <= s__state)) || !(\old(initial_state) <= 8464)) || (((blastFlag <= 2 && s__s3__tmp__next_state___0 <= 8640) && s__state <= 8466) && 8466 <= s__state)) || (!(s__hit == 0) && blastFlag <= 2)) || ((s__state <= 8560 && blastFlag <= 1) && 8496 <= s__state)) || ((s__state <= 8672 && blastFlag <= 3) && 8672 <= s__state)) || (s__state <= 3 && blastFlag <= 2)) || !(8464 <= \old(initial_state))) || (((s__state <= 8672 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 8640)) || ((blastFlag <= 2 && 8576 == s__s3__tmp__next_state___0) && 8448 == s__state)) || ((s__state <= 8560 && 8512 <= s__state) && blastFlag <= 2)) || (((s__state <= 8672 && 8512 <= s__state) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8640) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || ((s__state <= 8544 && 8512 <= s__state) && blastFlag <= 2) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (((!(s__hit == 0) && blastFlag <= 2) && !(s__state == 8672)) && 8672 <= s__state) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((!(s__hit == 0) && s__state <= 8640) && blastFlag <= 2)) || (((!(s__hit == 0) && s__state <= 8640) && s__s3__tmp__next_state___0 <= 8640) && blastFlag <= 3)) || (((8512 <= s__state && s__state <= 8640) && blastFlag <= 2) && s__s3__tmp__next_state___0 <= 8640) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: !(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 153 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 46.1s, OverallIterations: 23, TraceHistogramMax: 17, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4837 SDtfs, 8033 SDslu, 231 SDs, 0 SdLazy, 5744 SolverSat, 675 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4278occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 23 MinimizatonAttempts, 3287 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 56 PreInvPairs, 332 NumberOfFragments, 1213 HoareAnnotationTreeSize, 56 FomulaSimplifications, 50368 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 34 FomulaSimplificationsInter, 10612 FormulaSimplificationTreeSizeReductionInter, 6.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 23.8s InterpolantComputationTime, 6884 NumberOfCodeBlocks, 6884 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 6861 ConstructedInterpolants, 0 QuantifiedInterpolants, 3352141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 20 PerfectInterpolantSequences, 25003/25140 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...