/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:42:59,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:42:59,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:42:59,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:42:59,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:42:59,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:42:59,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:42:59,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:42:59,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:42:59,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:42:59,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:42:59,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:42:59,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:42:59,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:42:59,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:42:59,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:42:59,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:42:59,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:42:59,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:42:59,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:42:59,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:42:59,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:42:59,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:42:59,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:42:59,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:42:59,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:42:59,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:42:59,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:42:59,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:42:59,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:42:59,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:42:59,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:42:59,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:42:59,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:42:59,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:42:59,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:42:59,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:42:59,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:42:59,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:42:59,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:42:59,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:42:59,429 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:42:59,472 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:42:59,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:42:59,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:42:59,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:42:59,474 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:42:59,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:42:59,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:42:59,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:42:59,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:42:59,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:42:59,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:42:59,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:42:59,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:42:59,476 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:42:59,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:42:59,477 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:42:59,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:42:59,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:42:59,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:42:59,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:42:59,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:42:59,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:42:59,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:42:59,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:42:59,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:42:59,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:42:59,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:42:59,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:42:59,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:42:59,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:42:59,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:42:59,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:42:59,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:42:59,991 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:42:59,992 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:42:59,993 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 07:43:00,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b941be207/cb92dbf5dcf04705915b162eda76c1d2/FLAGc369f1a5a [2020-09-25 07:43:00,655 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:43:00,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 07:43:00,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b941be207/cb92dbf5dcf04705915b162eda76c1d2/FLAGc369f1a5a [2020-09-25 07:43:00,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b941be207/cb92dbf5dcf04705915b162eda76c1d2 [2020-09-25 07:43:00,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:43:00,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:43:00,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:43:00,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:43:00,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:43:00,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:43:00" (1/1) ... [2020-09-25 07:43:00,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43aac5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:00, skipping insertion in model container [2020-09-25 07:43:00,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:43:00" (1/1) ... [2020-09-25 07:43:00,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:43:01,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:43:01,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:43:01,372 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:43:01,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:43:01,546 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:43:01,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:01 WrapperNode [2020-09-25 07:43:01,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:43:01,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:43:01,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:43:01,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:43:01,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:01" (1/1) ... [2020-09-25 07:43:01,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:01" (1/1) ... [2020-09-25 07:43:01,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:01" (1/1) ... [2020-09-25 07:43:01,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:01" (1/1) ... [2020-09-25 07:43:01,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:01" (1/1) ... [2020-09-25 07:43:01,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:01" (1/1) ... [2020-09-25 07:43:01,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:01" (1/1) ... [2020-09-25 07:43:01,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:43:01,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:43:01,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:43:01,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:43:01,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:43:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:43:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:43:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 07:43:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:43:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:43:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:43:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 07:43:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 07:43:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:43:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:43:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:43:01,866 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:43:02,659 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-09-25 07:43:02,659 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-09-25 07:43:02,683 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:43:02,684 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 07:43:02,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:43:02 BoogieIcfgContainer [2020-09-25 07:43:02,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:43:02,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:43:02,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:43:02,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:43:02,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:43:00" (1/3) ... [2020-09-25 07:43:02,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6b590d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:43:02, skipping insertion in model container [2020-09-25 07:43:02,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:01" (2/3) ... [2020-09-25 07:43:02,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6b590d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:43:02, skipping insertion in model container [2020-09-25 07:43:02,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:43:02" (3/3) ... [2020-09-25 07:43:02,706 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-09-25 07:43:02,720 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:43:02,731 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:43:02,754 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:43:02,789 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:43:02,789 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:43:02,789 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:43:02,789 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:43:02,789 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:43:02,789 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:43:02,789 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:43:02,790 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:43:02,817 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 07:43:02,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:43:02,835 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:02,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:02,837 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:02,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:02,843 INFO L82 PathProgramCache]: Analyzing trace with hash 663725490, now seen corresponding path program 1 times [2020-09-25 07:43:02,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:02,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379315742] [2020-09-25 07:43:02,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:03,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:03,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:03,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:03,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 07:43:03,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:43:03,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-09-25 07:43:03,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:03,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:03,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:43:03,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 07:43:03,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 07:43:03,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:43:03,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:03,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:03,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:03,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:03,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:43:03,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:03,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:03,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:03,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:43:03,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379315742] [2020-09-25 07:43:03,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:03,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:43:03,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608257928] [2020-09-25 07:43:03,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:43:03,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:03,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:43:03,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:03,687 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-25 07:43:04,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:04,025 INFO L93 Difference]: Finished difference Result 635 states and 851 transitions. [2020-09-25 07:43:04,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:43:04,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:43:04,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:04,062 INFO L225 Difference]: With dead ends: 635 [2020-09-25 07:43:04,063 INFO L226 Difference]: Without dead ends: 334 [2020-09-25 07:43:04,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:04,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-25 07:43:04,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 320. [2020-09-25 07:43:04,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-09-25 07:43:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 380 transitions. [2020-09-25 07:43:04,195 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 380 transitions. Word has length 142 [2020-09-25 07:43:04,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:04,200 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 380 transitions. [2020-09-25 07:43:04,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:43:04,201 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 380 transitions. [2020-09-25 07:43:04,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 07:43:04,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:04,214 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:04,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:43:04,215 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:04,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:04,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1249677314, now seen corresponding path program 1 times [2020-09-25 07:43:04,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:04,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244847512] [2020-09-25 07:43:04,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:04,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:04,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:04,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:04,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:04,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:04,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 07:43:04,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:43:04,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-09-25 07:43:04,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:04,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:43:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 07:43:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:04,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:04,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:04,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:04,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:04,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:04,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:04,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:43:04,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:04,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:04,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:04,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:04,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:04,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:43:04,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244847512] [2020-09-25 07:43:04,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:04,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:43:04,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346333449] [2020-09-25 07:43:04,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:43:04,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:04,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:43:04,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:04,789 INFO L87 Difference]: Start difference. First operand 320 states and 380 transitions. Second operand 3 states. [2020-09-25 07:43:05,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:05,103 INFO L93 Difference]: Finished difference Result 578 states and 730 transitions. [2020-09-25 07:43:05,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:43:05,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-25 07:43:05,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:05,111 INFO L225 Difference]: With dead ends: 578 [2020-09-25 07:43:05,111 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 07:43:05,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:05,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 07:43:05,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 364. [2020-09-25 07:43:05,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-09-25 07:43:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 432 transitions. [2020-09-25 07:43:05,145 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 432 transitions. Word has length 158 [2020-09-25 07:43:05,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:05,146 INFO L479 AbstractCegarLoop]: Abstraction has 364 states and 432 transitions. [2020-09-25 07:43:05,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:43:05,146 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 432 transitions. [2020-09-25 07:43:05,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 07:43:05,151 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:05,152 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:05,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:43:05,152 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:05,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:05,153 INFO L82 PathProgramCache]: Analyzing trace with hash -288801966, now seen corresponding path program 1 times [2020-09-25 07:43:05,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:05,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552398361] [2020-09-25 07:43:05,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:05,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:05,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:05,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:05,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:05,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:05,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:43:05,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:43:05,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 766 [2020-09-25 07:43:05,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:05,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:05,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:43:05,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 07:43:05,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 07:43:05,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:06,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:06,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:06,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:06,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:06,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:06,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:06,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:06,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:06,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:43:06,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552398361] [2020-09-25 07:43:06,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:06,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:43:06,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143799470] [2020-09-25 07:43:06,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:43:06,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:06,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:43:06,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:06,056 INFO L87 Difference]: Start difference. First operand 364 states and 432 transitions. Second operand 3 states. [2020-09-25 07:43:06,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:06,361 INFO L93 Difference]: Finished difference Result 657 states and 824 transitions. [2020-09-25 07:43:06,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:43:06,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-09-25 07:43:06,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:06,366 INFO L225 Difference]: With dead ends: 657 [2020-09-25 07:43:06,367 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 07:43:06,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:06,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 07:43:06,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 377. [2020-09-25 07:43:06,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-09-25 07:43:06,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 450 transitions. [2020-09-25 07:43:06,385 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 450 transitions. Word has length 165 [2020-09-25 07:43:06,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:06,387 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 450 transitions. [2020-09-25 07:43:06,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:43:06,387 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 450 transitions. [2020-09-25 07:43:06,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 07:43:06,389 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:06,390 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:06,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:43:06,390 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:06,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:06,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1724791051, now seen corresponding path program 1 times [2020-09-25 07:43:06,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:06,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157334295] [2020-09-25 07:43:06,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:06,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:06,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:06,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:06,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 07:43:06,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:43:06,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-09-25 07:43:06,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:06,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:06,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:43:06,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 07:43:06,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:43:06,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:06,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:06,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:06,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:06,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:06,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:06,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:43:06,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:06,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:06,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:06,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:43:06,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157334295] [2020-09-25 07:43:06,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:06,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:43:06,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9286346] [2020-09-25 07:43:06,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:43:06,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:06,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:43:06,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:43:06,895 INFO L87 Difference]: Start difference. First operand 377 states and 450 transitions. Second operand 4 states. [2020-09-25 07:43:07,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:07,334 INFO L93 Difference]: Finished difference Result 938 states and 1171 transitions. [2020-09-25 07:43:07,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:43:07,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2020-09-25 07:43:07,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:07,342 INFO L225 Difference]: With dead ends: 938 [2020-09-25 07:43:07,343 INFO L226 Difference]: Without dead ends: 689 [2020-09-25 07:43:07,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:43:07,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-09-25 07:43:07,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 398. [2020-09-25 07:43:07,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-25 07:43:07,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 476 transitions. [2020-09-25 07:43:07,379 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 476 transitions. Word has length 167 [2020-09-25 07:43:07,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:07,380 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 476 transitions. [2020-09-25 07:43:07,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:43:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 476 transitions. [2020-09-25 07:43:07,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 07:43:07,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:07,386 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:07,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:43:07,387 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:07,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:07,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2007825220, now seen corresponding path program 1 times [2020-09-25 07:43:07,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:07,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361518789] [2020-09-25 07:43:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:07,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:07,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:07,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:07,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:07,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 07:43:07,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:43:07,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-25 07:43:07,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:07,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:43:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-25 07:43:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:07,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:07,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:07,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:07,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:07,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:07,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:07,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:07,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:07,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:07,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:07,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:07,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:07,928 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 07:43:07,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361518789] [2020-09-25 07:43:07,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:07,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:43:07,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550908603] [2020-09-25 07:43:07,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:43:07,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:07,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:43:07,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:07,930 INFO L87 Difference]: Start difference. First operand 398 states and 476 transitions. Second operand 3 states. [2020-09-25 07:43:07,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:07,967 INFO L93 Difference]: Finished difference Result 713 states and 872 transitions. [2020-09-25 07:43:07,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:43:07,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 07:43:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:07,971 INFO L225 Difference]: With dead ends: 713 [2020-09-25 07:43:07,971 INFO L226 Difference]: Without dead ends: 443 [2020-09-25 07:43:07,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:07,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-09-25 07:43:07,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2020-09-25 07:43:07,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-09-25 07:43:07,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 528 transitions. [2020-09-25 07:43:07,987 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 528 transitions. Word has length 180 [2020-09-25 07:43:07,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:07,987 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 528 transitions. [2020-09-25 07:43:07,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:43:07,988 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 528 transitions. [2020-09-25 07:43:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 07:43:07,990 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:07,990 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:07,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:43:07,991 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:07,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1957933229, now seen corresponding path program 1 times [2020-09-25 07:43:07,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:07,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635923878] [2020-09-25 07:43:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:08,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:08,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:08,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:08,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 07:43:08,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:43:08,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 07:43:08,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:08,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:08,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:43:08,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 07:43:08,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:43:08,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:08,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:08,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:08,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:08,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:08,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:08,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:08,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:08,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:08,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 07:43:08,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635923878] [2020-09-25 07:43:08,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:08,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:43:08,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985049378] [2020-09-25 07:43:08,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:43:08,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:08,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:43:08,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:08,385 INFO L87 Difference]: Start difference. First operand 443 states and 528 transitions. Second operand 3 states. [2020-09-25 07:43:08,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:08,620 INFO L93 Difference]: Finished difference Result 800 states and 996 transitions. [2020-09-25 07:43:08,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:43:08,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 07:43:08,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:08,625 INFO L225 Difference]: With dead ends: 800 [2020-09-25 07:43:08,625 INFO L226 Difference]: Without dead ends: 530 [2020-09-25 07:43:08,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:08,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-09-25 07:43:08,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 463. [2020-09-25 07:43:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-25 07:43:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 558 transitions. [2020-09-25 07:43:08,643 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 558 transitions. Word has length 181 [2020-09-25 07:43:08,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:08,644 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 558 transitions. [2020-09-25 07:43:08,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:43:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 558 transitions. [2020-09-25 07:43:08,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 07:43:08,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:08,648 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:08,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:43:08,648 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:08,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:08,649 INFO L82 PathProgramCache]: Analyzing trace with hash 129935299, now seen corresponding path program 1 times [2020-09-25 07:43:08,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:08,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879926839] [2020-09-25 07:43:08,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:08,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:08,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:09,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:09,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:09,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:43:09,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:43:09,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 696 [2020-09-25 07:43:09,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:09,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:43:09,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:43:09,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:43:09,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:09,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:09,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:09,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:09,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:09,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:09,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:43:09,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:09,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:09,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:09,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:09,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:09,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:09,508 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:43:09,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879926839] [2020-09-25 07:43:09,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:09,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:43:09,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759043339] [2020-09-25 07:43:09,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:43:09,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:09,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:43:09,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:09,512 INFO L87 Difference]: Start difference. First operand 463 states and 558 transitions. Second operand 3 states. [2020-09-25 07:43:09,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:09,538 INFO L93 Difference]: Finished difference Result 1011 states and 1252 transitions. [2020-09-25 07:43:09,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:43:09,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-09-25 07:43:09,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:09,545 INFO L225 Difference]: With dead ends: 1011 [2020-09-25 07:43:09,545 INFO L226 Difference]: Without dead ends: 721 [2020-09-25 07:43:09,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-09-25 07:43:09,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 719. [2020-09-25 07:43:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-25 07:43:09,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 873 transitions. [2020-09-25 07:43:09,581 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 873 transitions. Word has length 188 [2020-09-25 07:43:09,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:09,582 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 873 transitions. [2020-09-25 07:43:09,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:43:09,583 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 873 transitions. [2020-09-25 07:43:09,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 07:43:09,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:09,588 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:09,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:43:09,589 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:09,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:09,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1932501654, now seen corresponding path program 1 times [2020-09-25 07:43:09,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:09,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287287963] [2020-09-25 07:43:09,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:09,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:09,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:09,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:10,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:10,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:43:10,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:43:10,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 580 [2020-09-25 07:43:10,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:10,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:43:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 122 [2020-09-25 07:43:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 07:43:10,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:10,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:10,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:10,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:10,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:10,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:10,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:43:10,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:10,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:10,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 07:43:10,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287287963] [2020-09-25 07:43:10,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:10,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:43:10,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105167874] [2020-09-25 07:43:10,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:43:10,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:10,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:43:10,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:10,264 INFO L87 Difference]: Start difference. First operand 719 states and 873 transitions. Second operand 3 states. [2020-09-25 07:43:10,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:10,304 INFO L93 Difference]: Finished difference Result 1274 states and 1572 transitions. [2020-09-25 07:43:10,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:43:10,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-09-25 07:43:10,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:10,312 INFO L225 Difference]: With dead ends: 1274 [2020-09-25 07:43:10,312 INFO L226 Difference]: Without dead ends: 728 [2020-09-25 07:43:10,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-09-25 07:43:10,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 723. [2020-09-25 07:43:10,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-09-25 07:43:10,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 873 transitions. [2020-09-25 07:43:10,352 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 873 transitions. Word has length 189 [2020-09-25 07:43:10,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:10,353 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 873 transitions. [2020-09-25 07:43:10,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:43:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 873 transitions. [2020-09-25 07:43:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 07:43:10,359 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:10,360 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:10,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:43:10,361 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:10,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:10,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1261577978, now seen corresponding path program 1 times [2020-09-25 07:43:10,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:10,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755413353] [2020-09-25 07:43:10,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:10,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:10,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:10,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:10,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:11,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:11,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:11,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:43:11,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:43:11,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1410 [2020-09-25 07:43:11,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:11,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:43:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 07:43:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 07:43:11,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:11,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:11,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:11,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:11,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:11,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:11,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:11,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:11,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:11,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:11,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:11,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:11,904 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 07:43:11,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755413353] [2020-09-25 07:43:11,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:11,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:43:11,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95611269] [2020-09-25 07:43:11,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:43:11,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:11,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:43:11,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:43:11,912 INFO L87 Difference]: Start difference. First operand 723 states and 873 transitions. Second operand 4 states. [2020-09-25 07:43:12,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:12,002 INFO L93 Difference]: Finished difference Result 2492 states and 3072 transitions. [2020-09-25 07:43:12,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:43:12,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2020-09-25 07:43:12,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:12,012 INFO L225 Difference]: With dead ends: 2492 [2020-09-25 07:43:12,012 INFO L226 Difference]: Without dead ends: 1902 [2020-09-25 07:43:12,015 INFO L675 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 [2020-09-25 07:43:12,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2020-09-25 07:43:12,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1310. [2020-09-25 07:43:12,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-09-25 07:43:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1594 transitions. [2020-09-25 07:43:12,079 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1594 transitions. Word has length 191 [2020-09-25 07:43:12,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:12,080 INFO L479 AbstractCegarLoop]: Abstraction has 1310 states and 1594 transitions. [2020-09-25 07:43:12,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:43:12,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1594 transitions. [2020-09-25 07:43:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 07:43:12,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:12,084 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:12,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:43:12,085 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:12,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:12,085 INFO L82 PathProgramCache]: Analyzing trace with hash -6045779, now seen corresponding path program 1 times [2020-09-25 07:43:12,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:12,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [666145285] [2020-09-25 07:43:12,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:12,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:12,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:12,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:12,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:12,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:13,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:13,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:43:13,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:43:13,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 936 [2020-09-25 07:43:13,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:13,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:13,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:43:13,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-09-25 07:43:13,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 07:43:13,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:13,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:13,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:13,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:13,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:13,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:13,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:43:13,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:13,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:13,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:13,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:13,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:13,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:13,140 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 07:43:13,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [666145285] [2020-09-25 07:43:13,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:13,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:43:13,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75438926] [2020-09-25 07:43:13,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:43:13,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:13,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:43:13,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:13,143 INFO L87 Difference]: Start difference. First operand 1310 states and 1594 transitions. Second operand 3 states. [2020-09-25 07:43:13,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:13,195 INFO L93 Difference]: Finished difference Result 1916 states and 2339 transitions. [2020-09-25 07:43:13,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:43:13,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-09-25 07:43:13,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:13,208 INFO L225 Difference]: With dead ends: 1916 [2020-09-25 07:43:13,208 INFO L226 Difference]: Without dead ends: 1326 [2020-09-25 07:43:13,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:43:13,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2020-09-25 07:43:13,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1324. [2020-09-25 07:43:13,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2020-09-25 07:43:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1603 transitions. [2020-09-25 07:43:13,272 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1603 transitions. Word has length 191 [2020-09-25 07:43:13,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:13,273 INFO L479 AbstractCegarLoop]: Abstraction has 1324 states and 1603 transitions. [2020-09-25 07:43:13,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:43:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1603 transitions. [2020-09-25 07:43:13,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 07:43:13,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:13,277 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:13,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 07:43:13,277 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:13,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:13,278 INFO L82 PathProgramCache]: Analyzing trace with hash 2059637971, now seen corresponding path program 1 times [2020-09-25 07:43:13,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:13,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813698937] [2020-09-25 07:43:13,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:13,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:13,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:13,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:13,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:13,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:13,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:13,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:14,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:15,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:15,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 07:43:15,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:43:15,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2364 [2020-09-25 07:43:15,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:15,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:15,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:43:15,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 07:43:15,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:15,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:15,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:15,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:15,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:15,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:15,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:15,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:43:15,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:15,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:15,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:15,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:15,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:15,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:15,746 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:43:15,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813698937] [2020-09-25 07:43:15,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:15,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 07:43:15,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21350648] [2020-09-25 07:43:15,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:43:15,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:15,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:43:15,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:43:15,749 INFO L87 Difference]: Start difference. First operand 1324 states and 1603 transitions. Second operand 4 states. [2020-09-25 07:43:15,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:15,916 INFO L93 Difference]: Finished difference Result 1874 states and 2285 transitions. [2020-09-25 07:43:15,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:43:15,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2020-09-25 07:43:15,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:15,923 INFO L225 Difference]: With dead ends: 1874 [2020-09-25 07:43:15,923 INFO L226 Difference]: Without dead ends: 1324 [2020-09-25 07:43:15,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:43:15,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2020-09-25 07:43:15,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1324. [2020-09-25 07:43:15,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2020-09-25 07:43:15,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1602 transitions. [2020-09-25 07:43:15,978 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1602 transitions. Word has length 192 [2020-09-25 07:43:15,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:15,979 INFO L479 AbstractCegarLoop]: Abstraction has 1324 states and 1602 transitions. [2020-09-25 07:43:15,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:43:15,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1602 transitions. [2020-09-25 07:43:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 07:43:15,982 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:15,983 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:15,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 07:43:15,983 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:15,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:15,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1020047875, now seen corresponding path program 1 times [2020-09-25 07:43:15,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:15,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51342883] [2020-09-25 07:43:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:16,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:16,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:16,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:16,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-25 07:43:16,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:43:16,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-09-25 07:43:16,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:16,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:16,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:43:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 07:43:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:43:16,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:16,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:16,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:16,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:16,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:16,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:16,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:16,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:16,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:16,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:16,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 07:43:16,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51342883] [2020-09-25 07:43:16,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:16,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:43:16,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712645570] [2020-09-25 07:43:16,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:43:16,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:16,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:43:16,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:43:16,613 INFO L87 Difference]: Start difference. First operand 1324 states and 1602 transitions. Second operand 4 states. [2020-09-25 07:43:17,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:17,039 INFO L93 Difference]: Finished difference Result 2984 states and 3674 transitions. [2020-09-25 07:43:17,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:43:17,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-09-25 07:43:17,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:17,049 INFO L225 Difference]: With dead ends: 2984 [2020-09-25 07:43:17,050 INFO L226 Difference]: Without dead ends: 1925 [2020-09-25 07:43:17,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:43:17,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2020-09-25 07:43:17,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1327. [2020-09-25 07:43:17,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1327 states. [2020-09-25 07:43:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1585 transitions. [2020-09-25 07:43:17,106 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1585 transitions. Word has length 195 [2020-09-25 07:43:17,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:17,107 INFO L479 AbstractCegarLoop]: Abstraction has 1327 states and 1585 transitions. [2020-09-25 07:43:17,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:43:17,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1585 transitions. [2020-09-25 07:43:17,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 07:43:17,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:17,111 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:17,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 07:43:17,111 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:17,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:17,112 INFO L82 PathProgramCache]: Analyzing trace with hash 192610461, now seen corresponding path program 1 times [2020-09-25 07:43:17,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:17,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143049959] [2020-09-25 07:43:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:43:17,140 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:43:17,140 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:43:17,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 07:43:17,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:43:17 BoogieIcfgContainer [2020-09-25 07:43:17,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:43:17,202 INFO L168 Benchmark]: Toolchain (without parser) took 16226.90 ms. Allocated memory was 140.5 MB in the beginning and 432.0 MB in the end (delta: 291.5 MB). Free memory was 103.6 MB in the beginning and 255.7 MB in the end (delta: -152.0 MB). Peak memory consumption was 139.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:43:17,204 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 07:43:17,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.84 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 103.0 MB in the beginning and 179.2 MB in the end (delta: -76.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:43:17,205 INFO L168 Benchmark]: Boogie Preprocessor took 66.79 ms. Allocated memory is still 203.4 MB. Free memory was 179.2 MB in the beginning and 176.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:43:17,207 INFO L168 Benchmark]: RCFGBuilder took 1076.80 ms. Allocated memory is still 203.4 MB. Free memory was 176.5 MB in the beginning and 116.0 MB in the end (delta: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:43:17,212 INFO L168 Benchmark]: TraceAbstraction took 14499.60 ms. Allocated memory was 203.4 MB in the beginning and 432.0 MB in the end (delta: 228.6 MB). Free memory was 115.4 MB in the beginning and 255.7 MB in the end (delta: -140.3 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB. [2020-09-25 07:43:17,217 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 573.84 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 103.0 MB in the beginning and 179.2 MB in the end (delta: -76.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.79 ms. Allocated memory is still 203.4 MB. Free memory was 179.2 MB in the beginning and 176.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1076.80 ms. Allocated memory is still 203.4 MB. Free memory was 176.5 MB in the beginning and 116.0 MB in the end (delta: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14499.60 ms. Allocated memory was 203.4 MB in the beginning and 432.0 MB in the end (delta: 228.6 MB). Free memory was 115.4 MB in the beginning and 255.7 MB in the end (delta: -140.3 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 614]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 301. Possible FailurePath: [L623] int __retres1 ; [L627] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int ag_Z ; [L64] int __retres60 ; [L67] s__state = 12292 [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] cb = 0 [L71] ret = -1 [L72] skip = 0 [L73] tmp___0 = 0 [L74] COND TRUE s__info_callback != 0 [L75] cb = s__info_callback [L83] s__in_handshake = s__in_handshake + 1 [L84] COND FALSE !(tmp___1 + 12288) [L93] COND TRUE \read(s__hit) [L94] ag_Y = 208 [L99] COND TRUE 1 [L101] state = s__state [L102] COND TRUE s__state == 12292 [L205] s__new_session = 1 [L206] s__state = 4096 [L207] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L212] s__server = 0 [L213] COND TRUE cb != 0 [L218] COND FALSE !(s__version + 65280 != 768) [L224] s__type = 4096 [L225] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L243] COND FALSE !(! tmp___4) [L249] COND FALSE !(! tmp___5) [L255] s__state = 4368 [L256] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L257] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND TRUE s__state == 4368 [L261] s__shutdown = 0 [L262] ret = __VERIFIER_nondet_int() [L263] COND TRUE blastFlag == 0 [L264] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] ag_X = s__state - 32 [L275] s__init_num = 0 [L276] COND FALSE !((unsigned long )s__bbio != (unsigned long )s__wbio) [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND TRUE s__state == 4384 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L294] COND FALSE !(ret <= 0) [L299] s__state = ag_X [L300] COND TRUE \read(s__hit) [L301] s__state = s__state | ag_Y [L305] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND FALSE !(s__state == 4384) [L126] COND FALSE !(s__state == 4385) [L129] COND FALSE !(s__state == 4400) [L132] COND FALSE !(s__state == 4401) [L135] COND FALSE !(s__state == 4416) [L138] COND FALSE !(s__state == 4417) [L141] COND TRUE s__state == 4432 [L351] ret = __VERIFIER_nondet_int() [L352] COND TRUE blastFlag <= 5 [L614] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 350 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.3s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5391 SDtfs, 2264 SDslu, 5076 SDs, 0 SdLazy, 1062 SolverSat, 180 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1327occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1640 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 2342 NumberOfCodeBlocks, 2342 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2127 ConstructedInterpolants, 0 QuantifiedInterpolants, 539966 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 156/157 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...