/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:03:20,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:03:20,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:03:20,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:03:20,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:03:20,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:03:20,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:03:20,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:03:20,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:03:20,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:03:20,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:03:20,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:03:20,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:03:20,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:03:20,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:03:20,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:03:20,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:03:20,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:03:20,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:03:20,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:03:20,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:03:20,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:03:20,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:03:20,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:03:20,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:03:20,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:03:20,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:03:20,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:03:20,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:03:20,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:03:20,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:03:20,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:03:20,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:03:20,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:03:20,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:03:20,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:03:20,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:03:20,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:03:20,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:03:20,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:03:20,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:03:20,607 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 10:03:20,639 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:03:20,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:03:20,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:03:20,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:03:20,642 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:03:20,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:03:20,644 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:03:20,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:03:20,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:03:20,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:03:20,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:03:20,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:03:20,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:03:20,646 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:03:20,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:03:20,647 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:03:20,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:03:20,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:03:20,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:03:20,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:03:20,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:03:20,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:03:20,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:03:20,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:03:20,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:03:20,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:03:20,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:03:20,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:03:20,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:03:20,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 10:03:21,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:03:21,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:03:21,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:03:21,161 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:03:21,161 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:03:21,162 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-25 10:03:21,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/916d5e2e4/bce7eacc43e547318bf44b75c6c0c3ca/FLAG371bc7508 [2020-09-25 10:03:21,813 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:03:21,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-25 10:03:21,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/916d5e2e4/bce7eacc43e547318bf44b75c6c0c3ca/FLAG371bc7508 [2020-09-25 10:03:22,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/916d5e2e4/bce7eacc43e547318bf44b75c6c0c3ca [2020-09-25 10:03:22,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:03:22,216 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:03:22,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:03:22,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:03:22,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:03:22,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:03:22" (1/1) ... [2020-09-25 10:03:22,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161bae18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22, skipping insertion in model container [2020-09-25 10:03:22,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:03:22" (1/1) ... [2020-09-25 10:03:22,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:03:22,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:03:22,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:03:22,572 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:03:22,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:03:22,760 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:03:22,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22 WrapperNode [2020-09-25 10:03:22,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:03:22,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:03:22,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:03:22,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:03:22,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22" (1/1) ... [2020-09-25 10:03:22,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22" (1/1) ... [2020-09-25 10:03:22,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22" (1/1) ... [2020-09-25 10:03:22,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22" (1/1) ... [2020-09-25 10:03:22,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22" (1/1) ... [2020-09-25 10:03:22,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22" (1/1) ... [2020-09-25 10:03:22,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22" (1/1) ... [2020-09-25 10:03:22,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:03:22,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:03:22,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:03:22,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:03:22,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22" (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 10:03:22,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:03:22,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:03:22,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 10:03:22,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:03:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:03:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 10:03:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:03:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 10:03:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 10:03:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:03:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:03:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:03:23,129 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 10:03:23,837 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 10:03:23,837 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 10:03:23,856 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:03:23,856 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 10:03:23,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:03:23 BoogieIcfgContainer [2020-09-25 10:03:23,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:03:23,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:03:23,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:03:23,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:03:23,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:03:22" (1/3) ... [2020-09-25 10:03:23,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5399241e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:03:23, skipping insertion in model container [2020-09-25 10:03:23,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:22" (2/3) ... [2020-09-25 10:03:23,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5399241e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:03:23, skipping insertion in model container [2020-09-25 10:03:23,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:03:23" (3/3) ... [2020-09-25 10:03:23,876 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2020-09-25 10:03:23,888 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:03:23,899 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:03:23,922 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:03:23,964 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:03:23,964 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:03:23,965 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:03:23,965 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:03:23,965 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:03:23,965 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:03:23,965 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:03:23,966 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:03:23,999 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states. [2020-09-25 10:03:24,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 10:03:24,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:24,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:24,020 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:24,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:24,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1103530067, now seen corresponding path program 1 times [2020-09-25 10:03:24,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:24,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341871834] [2020-09-25 10:03:24,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:24,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:24,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:24,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:25,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:25,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:25,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 10:03:25,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:25,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1401 [2020-09-25 10:03:25,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:25,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:25,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:03:25,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 10:03:25,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-25 10:03:25,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:03:25,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:25,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:25,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:25,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:25,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:25,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:25,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:25,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:25,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:25,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:25,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:25,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:25,948 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 10:03:25,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341871834] [2020-09-25 10:03:25,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:25,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:03:25,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227050647] [2020-09-25 10:03:25,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:03:25,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:25,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:03:25,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:03:25,989 INFO L87 Difference]: Start difference. First operand 440 states. Second operand 6 states. [2020-09-25 10:03:26,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:26,335 INFO L93 Difference]: Finished difference Result 782 states and 1019 transitions. [2020-09-25 10:03:26,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 10:03:26,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-25 10:03:26,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:26,359 INFO L225 Difference]: With dead ends: 782 [2020-09-25 10:03:26,359 INFO L226 Difference]: Without dead ends: 441 [2020-09-25 10:03:26,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:03:26,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-09-25 10:03:26,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 430. [2020-09-25 10:03:26,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-09-25 10:03:26,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 515 transitions. [2020-09-25 10:03:26,452 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 515 transitions. Word has length 160 [2020-09-25 10:03:26,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:26,453 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 515 transitions. [2020-09-25 10:03:26,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:03:26,453 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 515 transitions. [2020-09-25 10:03:26,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 10:03:26,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:26,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:26,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:03:26,457 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:26,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:26,458 INFO L82 PathProgramCache]: Analyzing trace with hash -466072829, now seen corresponding path program 1 times [2020-09-25 10:03:26,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:26,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618361823] [2020-09-25 10:03:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:26,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:26,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:26,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:26,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:27,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:27,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-25 10:03:27,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:27,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1265 [2020-09-25 10:03:27,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:27,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:27,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:03:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 10:03:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-25 10:03:27,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:27,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:27,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:27,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:27,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:27,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:27,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:27,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:27,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:27,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:27,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:27,912 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 10:03:27,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618361823] [2020-09-25 10:03:27,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:27,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:03:27,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562800286] [2020-09-25 10:03:27,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:03:27,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:27,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:03:27,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:03:27,917 INFO L87 Difference]: Start difference. First operand 430 states and 515 transitions. Second operand 7 states. [2020-09-25 10:03:28,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:28,384 INFO L93 Difference]: Finished difference Result 876 states and 1103 transitions. [2020-09-25 10:03:28,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:03:28,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-09-25 10:03:28,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:28,390 INFO L225 Difference]: With dead ends: 876 [2020-09-25 10:03:28,390 INFO L226 Difference]: Without dead ends: 574 [2020-09-25 10:03:28,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:03:28,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-09-25 10:03:28,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 539. [2020-09-25 10:03:28,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-09-25 10:03:28,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 645 transitions. [2020-09-25 10:03:28,422 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 645 transitions. Word has length 169 [2020-09-25 10:03:28,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:28,423 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 645 transitions. [2020-09-25 10:03:28,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:03:28,423 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 645 transitions. [2020-09-25 10:03:28,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 10:03:28,427 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:28,428 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:28,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:03:28,428 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:28,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:28,429 INFO L82 PathProgramCache]: Analyzing trace with hash -139011456, now seen corresponding path program 1 times [2020-09-25 10:03:28,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:28,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505673837] [2020-09-25 10:03:28,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:28,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:28,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:28,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:28,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:28,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:30,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:30,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 10:03:30,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:03:30,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1791 [2020-09-25 10:03:30,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:30,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:30,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:30,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 10:03:30,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 10:03:30,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:30,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:30,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:30,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:30,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:30,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:30,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:30,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:30,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:30,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:30,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:30,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:30,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 10:03:30,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505673837] [2020-09-25 10:03:30,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:30,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:30,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592336860] [2020-09-25 10:03:30,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:30,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:30,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:30,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:30,347 INFO L87 Difference]: Start difference. First operand 539 states and 645 transitions. Second operand 3 states. [2020-09-25 10:03:30,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:30,418 INFO L93 Difference]: Finished difference Result 954 states and 1163 transitions. [2020-09-25 10:03:30,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:30,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-09-25 10:03:30,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:30,422 INFO L225 Difference]: With dead ends: 954 [2020-09-25 10:03:30,422 INFO L226 Difference]: Without dead ends: 555 [2020-09-25 10:03:30,423 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 10:03:30,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-25 10:03:30,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2020-09-25 10:03:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-09-25 10:03:30,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 661 transitions. [2020-09-25 10:03:30,440 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 661 transitions. Word has length 191 [2020-09-25 10:03:30,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:30,441 INFO L479 AbstractCegarLoop]: Abstraction has 555 states and 661 transitions. [2020-09-25 10:03:30,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 661 transitions. [2020-09-25 10:03:30,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 10:03:30,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:30,444 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:30,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:03:30,445 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:30,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:30,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1120886307, now seen corresponding path program 1 times [2020-09-25 10:03:30,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:30,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269011691] [2020-09-25 10:03:30,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:30,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:30,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:30,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:30,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:30,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:31,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:31,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:31,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:31,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 10:03:31,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:03:31,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-25 10:03:31,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:31,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:31,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:31,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 10:03:31,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:03:31,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:31,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:31,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:31,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:31,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:31,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:31,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:31,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:31,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:31,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:31,583 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:31,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269011691] [2020-09-25 10:03:31,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:03:31,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 10:03:31,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721010750] [2020-09-25 10:03:31,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:03:31,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:31,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:03:31,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:03:31,592 INFO L87 Difference]: Start difference. First operand 555 states and 661 transitions. Second operand 4 states. [2020-09-25 10:03:31,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:31,887 INFO L93 Difference]: Finished difference Result 1172 states and 1461 transitions. [2020-09-25 10:03:31,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:03:31,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2020-09-25 10:03:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:31,894 INFO L225 Difference]: With dead ends: 1172 [2020-09-25 10:03:31,894 INFO L226 Difference]: Without dead ends: 761 [2020-09-25 10:03:31,895 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 10:03:31,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-09-25 10:03:31,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 665. [2020-09-25 10:03:31,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-09-25 10:03:31,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 802 transitions. [2020-09-25 10:03:31,917 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 802 transitions. Word has length 192 [2020-09-25 10:03:31,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:31,918 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 802 transitions. [2020-09-25 10:03:31,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:03:31,918 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 802 transitions. [2020-09-25 10:03:31,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 10:03:31,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:31,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:31,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:03:31,922 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:31,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:31,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1578833511, now seen corresponding path program 1 times [2020-09-25 10:03:31,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:31,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825520072] [2020-09-25 10:03:31,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:31,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:32,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 10:03:32,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:03:32,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-09-25 10:03:32,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:32,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 10:03:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 10:03:32,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:32,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:32,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:32,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:32,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:32,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:32,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:32,688 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:32,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825520072] [2020-09-25 10:03:32,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:32,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:32,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88253149] [2020-09-25 10:03:32,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:32,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:32,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:32,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:32,692 INFO L87 Difference]: Start difference. First operand 665 states and 802 transitions. Second operand 3 states. [2020-09-25 10:03:32,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:32,786 INFO L93 Difference]: Finished difference Result 1672 states and 2075 transitions. [2020-09-25 10:03:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:32,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-09-25 10:03:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:32,794 INFO L225 Difference]: With dead ends: 1672 [2020-09-25 10:03:32,794 INFO L226 Difference]: Without dead ends: 1163 [2020-09-25 10:03:32,796 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 10:03:32,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2020-09-25 10:03:32,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1161. [2020-09-25 10:03:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1161 states. [2020-09-25 10:03:32,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1424 transitions. [2020-09-25 10:03:32,829 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1424 transitions. Word has length 204 [2020-09-25 10:03:32,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:32,830 INFO L479 AbstractCegarLoop]: Abstraction has 1161 states and 1424 transitions. [2020-09-25 10:03:32,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:32,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1424 transitions. [2020-09-25 10:03:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 10:03:32,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:32,834 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:32,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:03:32,835 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:32,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:32,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1519790942, now seen corresponding path program 1 times [2020-09-25 10:03:32,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:32,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297375272] [2020-09-25 10:03:32,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:32,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:33,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:33,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:34,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:34,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 10:03:34,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:34,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1378 [2020-09-25 10:03:34,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:34,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:34,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:03:34,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 10:03:34,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 10:03:34,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:34,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:34,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:34,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:34,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:34,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:34,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:34,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:34,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:34,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:34,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:34,385 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:34,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297375272] [2020-09-25 10:03:34,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:03:34,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 10:03:34,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238648942] [2020-09-25 10:03:34,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:03:34,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:34,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:03:34,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:03:34,388 INFO L87 Difference]: Start difference. First operand 1161 states and 1424 transitions. Second operand 5 states. [2020-09-25 10:03:35,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:35,033 INFO L93 Difference]: Finished difference Result 3640 states and 4585 transitions. [2020-09-25 10:03:35,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:03:35,034 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 205 [2020-09-25 10:03:35,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:35,052 INFO L225 Difference]: With dead ends: 3640 [2020-09-25 10:03:35,052 INFO L226 Difference]: Without dead ends: 2611 [2020-09-25 10:03:35,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:03:35,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2020-09-25 10:03:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 1171. [2020-09-25 10:03:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1171 states. [2020-09-25 10:03:35,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1438 transitions. [2020-09-25 10:03:35,117 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1438 transitions. Word has length 205 [2020-09-25 10:03:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:35,118 INFO L479 AbstractCegarLoop]: Abstraction has 1171 states and 1438 transitions. [2020-09-25 10:03:35,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:03:35,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1438 transitions. [2020-09-25 10:03:35,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 10:03:35,127 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:35,127 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:03:35,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:03:35,128 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:35,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:35,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1488470240, now seen corresponding path program 1 times [2020-09-25 10:03:35,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:35,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244356456] [2020-09-25 10:03:35,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:35,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:36,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 10:03:36,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:03:36,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1195 [2020-09-25 10:03:36,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:36,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:36,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:36,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 10:03:36,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 10:03:36,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:36,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:36,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:36,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:36,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:36,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:36,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:36,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:36,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 10:03:36,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244356456] [2020-09-25 10:03:36,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:36,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:36,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82410729] [2020-09-25 10:03:36,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:36,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:36,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:36,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:36,460 INFO L87 Difference]: Start difference. First operand 1171 states and 1438 transitions. Second operand 3 states. [2020-09-25 10:03:36,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:36,545 INFO L93 Difference]: Finished difference Result 2178 states and 2705 transitions. [2020-09-25 10:03:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:36,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-25 10:03:36,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:36,553 INFO L225 Difference]: With dead ends: 2178 [2020-09-25 10:03:36,553 INFO L226 Difference]: Without dead ends: 1163 [2020-09-25 10:03:36,556 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 10:03:36,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2020-09-25 10:03:36,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1161. [2020-09-25 10:03:36,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1161 states. [2020-09-25 10:03:36,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1421 transitions. [2020-09-25 10:03:36,595 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1421 transitions. Word has length 224 [2020-09-25 10:03:36,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:36,595 INFO L479 AbstractCegarLoop]: Abstraction has 1161 states and 1421 transitions. [2020-09-25 10:03:36,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:36,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1421 transitions. [2020-09-25 10:03:36,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 10:03:36,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:36,602 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:36,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:03:36,602 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:36,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:36,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1995787975, now seen corresponding path program 1 times [2020-09-25 10:03:36,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:36,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724063875] [2020-09-25 10:03:36,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:36,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:36,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 10:03:36,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:03:36,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-25 10:03:36,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:36,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-25 10:03:36,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 10:03:36,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:36,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:36,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:36,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:36,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:36,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:36,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:36,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:36,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:36,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:36,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:37,059 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:03:37,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724063875] [2020-09-25 10:03:37,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:37,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:37,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431456196] [2020-09-25 10:03:37,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:37,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:37,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:37,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:37,062 INFO L87 Difference]: Start difference. First operand 1161 states and 1421 transitions. Second operand 3 states. [2020-09-25 10:03:37,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:37,181 INFO L93 Difference]: Finished difference Result 2669 states and 3320 transitions. [2020-09-25 10:03:37,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:37,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-25 10:03:37,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:37,190 INFO L225 Difference]: With dead ends: 2669 [2020-09-25 10:03:37,190 INFO L226 Difference]: Without dead ends: 1664 [2020-09-25 10:03:37,195 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 10:03:37,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2020-09-25 10:03:37,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1662. [2020-09-25 10:03:37,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2020-09-25 10:03:37,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2052 transitions. [2020-09-25 10:03:37,277 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2052 transitions. Word has length 224 [2020-09-25 10:03:37,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:37,278 INFO L479 AbstractCegarLoop]: Abstraction has 1662 states and 2052 transitions. [2020-09-25 10:03:37,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:37,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2052 transitions. [2020-09-25 10:03:37,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 10:03:37,283 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:37,283 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:03:37,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 10:03:37,284 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:37,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:37,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1479104446, now seen corresponding path program 1 times [2020-09-25 10:03:37,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:37,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409770387] [2020-09-25 10:03:37,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:37,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:37,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:37,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:37,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:37,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:37,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 10:03:37,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:37,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-09-25 10:03:37,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:37,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-25 10:03:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 10:03:37,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:37,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:37,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:37,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:37,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:37,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:37,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:37,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:37,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:37,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:37,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:38,046 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 41 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:03:38,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409770387] [2020-09-25 10:03:38,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:03:38,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 10:03:38,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357878733] [2020-09-25 10:03:38,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:03:38,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:38,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:03:38,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:03:38,056 INFO L87 Difference]: Start difference. First operand 1662 states and 2052 transitions. Second operand 4 states. [2020-09-25 10:03:38,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:38,432 INFO L93 Difference]: Finished difference Result 3913 states and 4944 transitions. [2020-09-25 10:03:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:03:38,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 225 [2020-09-25 10:03:38,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:38,443 INFO L225 Difference]: With dead ends: 3913 [2020-09-25 10:03:38,443 INFO L226 Difference]: Without dead ends: 2221 [2020-09-25 10:03:38,447 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 10:03:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2020-09-25 10:03:38,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2119. [2020-09-25 10:03:38,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2119 states. [2020-09-25 10:03:38,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 2612 transitions. [2020-09-25 10:03:38,550 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 2612 transitions. Word has length 225 [2020-09-25 10:03:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:38,550 INFO L479 AbstractCegarLoop]: Abstraction has 2119 states and 2612 transitions. [2020-09-25 10:03:38,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:03:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 2612 transitions. [2020-09-25 10:03:38,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 10:03:38,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:38,555 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:03:38,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 10:03:38,556 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:38,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:38,556 INFO L82 PathProgramCache]: Analyzing trace with hash 387081282, now seen corresponding path program 1 times [2020-09-25 10:03:38,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:38,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066098088] [2020-09-25 10:03:38,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:38,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:38,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:38,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 10:03:39,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:39,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-09-25 10:03:39,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-25 10:03:39,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 10:03:39,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:39,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:39,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:39,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:39,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:39,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:39,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:39,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:39,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:39,299 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 41 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:03:39,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066098088] [2020-09-25 10:03:39,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:03:39,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 10:03:39,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545838800] [2020-09-25 10:03:39,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:03:39,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:39,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:03:39,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:03:39,302 INFO L87 Difference]: Start difference. First operand 2119 states and 2612 transitions. Second operand 4 states. [2020-09-25 10:03:39,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:39,735 INFO L93 Difference]: Finished difference Result 5129 states and 6415 transitions. [2020-09-25 10:03:39,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:03:39,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 225 [2020-09-25 10:03:39,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:39,751 INFO L225 Difference]: With dead ends: 5129 [2020-09-25 10:03:39,751 INFO L226 Difference]: Without dead ends: 3068 [2020-09-25 10:03:39,758 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 10:03:39,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2020-09-25 10:03:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2313. [2020-09-25 10:03:39,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2313 states. [2020-09-25 10:03:39,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 2870 transitions. [2020-09-25 10:03:39,846 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 2870 transitions. Word has length 225 [2020-09-25 10:03:39,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:39,847 INFO L479 AbstractCegarLoop]: Abstraction has 2313 states and 2870 transitions. [2020-09-25 10:03:39,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:03:39,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 2870 transitions. [2020-09-25 10:03:39,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 10:03:39,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:39,856 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:39,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 10:03:39,856 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:39,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:39,857 INFO L82 PathProgramCache]: Analyzing trace with hash 890062, now seen corresponding path program 1 times [2020-09-25 10:03:39,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:39,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686826576] [2020-09-25 10:03:39,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:39,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:41,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:41,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 10:03:41,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:03:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1286 [2020-09-25 10:03:41,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:41,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:41,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:41,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 10:03:41,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 10:03:41,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:41,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:41,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:41,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:41,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:41,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:41,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:41,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:41,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:41,275 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 10:03:41,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686826576] [2020-09-25 10:03:41,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:41,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:41,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958921285] [2020-09-25 10:03:41,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:41,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:41,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:41,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:41,278 INFO L87 Difference]: Start difference. First operand 2313 states and 2870 transitions. Second operand 3 states. [2020-09-25 10:03:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:41,592 INFO L93 Difference]: Finished difference Result 4826 states and 6113 transitions. [2020-09-25 10:03:41,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:41,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2020-09-25 10:03:41,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:41,605 INFO L225 Difference]: With dead ends: 4826 [2020-09-25 10:03:41,606 INFO L226 Difference]: Without dead ends: 2548 [2020-09-25 10:03:41,611 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 10:03:41,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2020-09-25 10:03:41,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2491. [2020-09-25 10:03:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2491 states. [2020-09-25 10:03:41,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3108 transitions. [2020-09-25 10:03:41,689 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3108 transitions. Word has length 230 [2020-09-25 10:03:41,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:41,690 INFO L479 AbstractCegarLoop]: Abstraction has 2491 states and 3108 transitions. [2020-09-25 10:03:41,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:41,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3108 transitions. [2020-09-25 10:03:41,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 10:03:41,695 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:41,696 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:41,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 10:03:41,696 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:41,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:41,697 INFO L82 PathProgramCache]: Analyzing trace with hash -375635012, now seen corresponding path program 1 times [2020-09-25 10:03:41,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:41,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344688209] [2020-09-25 10:03:41,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:41,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:41,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:41,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:43,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:43,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 10:03:43,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:03:43,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1911 [2020-09-25 10:03:43,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:43,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:43,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:03:43,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-25 10:03:43,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 10:03:43,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:43,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:43,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:43,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:43,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:43,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:43,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:43,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:43,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:43,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:43,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:43,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:43,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:03:43,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344688209] [2020-09-25 10:03:43,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:03:43,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 10:03:43,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404718131] [2020-09-25 10:03:43,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:03:43,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:43,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:03:43,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:03:43,744 INFO L87 Difference]: Start difference. First operand 2491 states and 3108 transitions. Second operand 5 states. [2020-09-25 10:03:44,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:44,396 INFO L93 Difference]: Finished difference Result 7953 states and 10016 transitions. [2020-09-25 10:03:44,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:03:44,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-09-25 10:03:44,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:44,424 INFO L225 Difference]: With dead ends: 7953 [2020-09-25 10:03:44,424 INFO L226 Difference]: Without dead ends: 5618 [2020-09-25 10:03:44,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:03:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2020-09-25 10:03:44,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 2722. [2020-09-25 10:03:44,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2722 states. [2020-09-25 10:03:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3376 transitions. [2020-09-25 10:03:44,609 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3376 transitions. Word has length 235 [2020-09-25 10:03:44,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:44,610 INFO L479 AbstractCegarLoop]: Abstraction has 2722 states and 3376 transitions. [2020-09-25 10:03:44,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:03:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3376 transitions. [2020-09-25 10:03:44,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 10:03:44,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:44,616 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:44,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 10:03:44,616 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:44,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:44,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1036479516, now seen corresponding path program 1 times [2020-09-25 10:03:44,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:44,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132980196] [2020-09-25 10:03:44,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:44,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:44,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:44,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:44,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:46,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:46,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 10:03:46,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:46,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1531 [2020-09-25 10:03:46,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:46,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:46,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:03:46,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-25 10:03:46,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 10:03:46,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:46,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:46,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:46,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:46,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:46,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:46,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:46,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:46,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:46,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:03:46,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132980196] [2020-09-25 10:03:46,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:03:46,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 10:03:46,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308234977] [2020-09-25 10:03:46,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:03:46,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:46,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:03:46,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:03:46,279 INFO L87 Difference]: Start difference. First operand 2722 states and 3376 transitions. Second operand 5 states. [2020-09-25 10:03:47,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:47,015 INFO L93 Difference]: Finished difference Result 7366 states and 9197 transitions. [2020-09-25 10:03:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:03:47,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-09-25 10:03:47,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:47,043 INFO L225 Difference]: With dead ends: 7366 [2020-09-25 10:03:47,043 INFO L226 Difference]: Without dead ends: 4740 [2020-09-25 10:03:47,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:03:47,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2020-09-25 10:03:47,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 2701. [2020-09-25 10:03:47,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2701 states. [2020-09-25 10:03:47,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3343 transitions. [2020-09-25 10:03:47,195 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3343 transitions. Word has length 235 [2020-09-25 10:03:47,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:47,196 INFO L479 AbstractCegarLoop]: Abstraction has 2701 states and 3343 transitions. [2020-09-25 10:03:47,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:03:47,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3343 transitions. [2020-09-25 10:03:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-25 10:03:47,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:47,206 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:47,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 10:03:47,207 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:47,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:47,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1397676526, now seen corresponding path program 1 times [2020-09-25 10:03:47,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:47,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088823614] [2020-09-25 10:03:47,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:47,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:47,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:47,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:48,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:48,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:50,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:50,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-25 10:03:50,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:03:50,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2771 [2020-09-25 10:03:50,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:50,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:03:50,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 10:03:50,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 10:03:50,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:50,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:50,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:50,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:50,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:50,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:50,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:50,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:50,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:50,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:50,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:50,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:50,173 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 10:03:50,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088823614] [2020-09-25 10:03:50,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:50,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 10:03:50,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754924555] [2020-09-25 10:03:50,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:03:50,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:50,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:03:50,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:03:50,175 INFO L87 Difference]: Start difference. First operand 2701 states and 3343 transitions. Second operand 4 states. [2020-09-25 10:03:50,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:50,680 INFO L93 Difference]: Finished difference Result 6556 states and 8237 transitions. [2020-09-25 10:03:50,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:03:50,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2020-09-25 10:03:50,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:50,694 INFO L225 Difference]: With dead ends: 6556 [2020-09-25 10:03:50,695 INFO L226 Difference]: Without dead ends: 3981 [2020-09-25 10:03:50,703 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 10:03:50,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3981 states. [2020-09-25 10:03:50,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3981 to 2006. [2020-09-25 10:03:50,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2020-09-25 10:03:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2472 transitions. [2020-09-25 10:03:50,783 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2472 transitions. Word has length 238 [2020-09-25 10:03:50,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:50,784 INFO L479 AbstractCegarLoop]: Abstraction has 2006 states and 2472 transitions. [2020-09-25 10:03:50,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:03:50,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2472 transitions. [2020-09-25 10:03:50,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-09-25 10:03:50,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:50,790 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:03:50,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 10:03:50,790 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:50,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:50,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1314212032, now seen corresponding path program 1 times [2020-09-25 10:03:50,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:50,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370808649] [2020-09-25 10:03:50,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:50,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:50,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:51,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:51,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:51,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:51,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 10:03:51,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-09-25 10:03:51,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:51,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-09-25 10:03:51,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:03:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:51,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:51,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:51,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:51,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:51,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:51,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:51,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:51,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:51,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:51,694 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-25 10:03:51,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370808649] [2020-09-25 10:03:51,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:51,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 10:03:51,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039699059] [2020-09-25 10:03:51,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:03:51,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:51,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:03:51,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:03:51,697 INFO L87 Difference]: Start difference. First operand 2006 states and 2472 transitions. Second operand 4 states. [2020-09-25 10:03:51,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:51,979 INFO L93 Difference]: Finished difference Result 4048 states and 5003 transitions. [2020-09-25 10:03:51,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:03:51,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 256 [2020-09-25 10:03:51,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:51,985 INFO L225 Difference]: With dead ends: 4048 [2020-09-25 10:03:51,986 INFO L226 Difference]: Without dead ends: 2198 [2020-09-25 10:03:51,990 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 10:03:51,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2020-09-25 10:03:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 2006. [2020-09-25 10:03:52,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2020-09-25 10:03:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2472 transitions. [2020-09-25 10:03:52,051 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2472 transitions. Word has length 256 [2020-09-25 10:03:52,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:52,051 INFO L479 AbstractCegarLoop]: Abstraction has 2006 states and 2472 transitions. [2020-09-25 10:03:52,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:03:52,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2472 transitions. [2020-09-25 10:03:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-09-25 10:03:52,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:52,057 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:52,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 10:03:52,058 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:52,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1691601656, now seen corresponding path program 1 times [2020-09-25 10:03:52,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:52,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309507498] [2020-09-25 10:03:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:52,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:52,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:52,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:52,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:52,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:52,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:53,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:53,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 10:03:53,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:03:53,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 967 [2020-09-25 10:03:53,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:53,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:53,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:53,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 10:03:53,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 10:03:53,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:53,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:53,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:53,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:53,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:53,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:53,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:53,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:53,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:53,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:53,195 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 10:03:53,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309507498] [2020-09-25 10:03:53,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:53,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:53,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989302998] [2020-09-25 10:03:53,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:53,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:53,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:53,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:53,197 INFO L87 Difference]: Start difference. First operand 2006 states and 2472 transitions. Second operand 3 states. [2020-09-25 10:03:53,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:53,455 INFO L93 Difference]: Finished difference Result 4216 states and 5247 transitions. [2020-09-25 10:03:53,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:53,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2020-09-25 10:03:53,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:53,462 INFO L225 Difference]: With dead ends: 4216 [2020-09-25 10:03:53,462 INFO L226 Difference]: Without dead ends: 2330 [2020-09-25 10:03:53,467 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 10:03:53,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2020-09-25 10:03:53,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2072. [2020-09-25 10:03:53,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2072 states. [2020-09-25 10:03:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2558 transitions. [2020-09-25 10:03:53,522 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2558 transitions. Word has length 256 [2020-09-25 10:03:53,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:53,523 INFO L479 AbstractCegarLoop]: Abstraction has 2072 states and 2558 transitions. [2020-09-25 10:03:53,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:53,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2558 transitions. [2020-09-25 10:03:53,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-09-25 10:03:53,528 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:53,529 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:53,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 10:03:53,529 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:53,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:53,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1637140168, now seen corresponding path program 1 times [2020-09-25 10:03:53,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:53,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885211737] [2020-09-25 10:03:53,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:53,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:53,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:53,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:53,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:54,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:54,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-25 10:03:54,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:54,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 848 [2020-09-25 10:03:54,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:54,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-09-25 10:03:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:03:54,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:54,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:54,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:54,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:54,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:54,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:54,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:54,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:54,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:54,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:54,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:54,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:54,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-09-25 10:03:54,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885211737] [2020-09-25 10:03:54,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:54,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:54,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987895414] [2020-09-25 10:03:54,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:54,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:54,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:54,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:54,644 INFO L87 Difference]: Start difference. First operand 2072 states and 2558 transitions. Second operand 3 states. [2020-09-25 10:03:54,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:54,772 INFO L93 Difference]: Finished difference Result 5852 states and 7286 transitions. [2020-09-25 10:03:54,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:54,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2020-09-25 10:03:54,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:54,787 INFO L225 Difference]: With dead ends: 5852 [2020-09-25 10:03:54,787 INFO L226 Difference]: Without dead ends: 3936 [2020-09-25 10:03:54,794 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 10:03:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2020-09-25 10:03:54,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3924. [2020-09-25 10:03:54,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3924 states. [2020-09-25 10:03:54,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 4873 transitions. [2020-09-25 10:03:54,969 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 4873 transitions. Word has length 263 [2020-09-25 10:03:54,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:54,970 INFO L479 AbstractCegarLoop]: Abstraction has 3924 states and 4873 transitions. [2020-09-25 10:03:54,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:54,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 4873 transitions. [2020-09-25 10:03:54,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-09-25 10:03:54,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:54,977 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:54,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 10:03:54,977 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:54,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:54,978 INFO L82 PathProgramCache]: Analyzing trace with hash -227250200, now seen corresponding path program 1 times [2020-09-25 10:03:54,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:54,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609004138] [2020-09-25 10:03:54,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:55,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:55,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:55,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:55,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:55,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:55,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:56,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:58,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:58,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-09-25 10:03:58,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:03:58,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3494 [2020-09-25 10:03:58,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:58,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:03:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 10:03:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 10:03:58,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:58,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:58,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:58,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:58,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:58,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:58,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:58,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:58,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:58,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:58,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:58,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:58,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:58,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:58,634 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 10:03:58,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609004138] [2020-09-25 10:03:58,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:58,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 10:03:58,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914000566] [2020-09-25 10:03:58,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:03:58,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:58,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:03:58,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:03:58,641 INFO L87 Difference]: Start difference. First operand 3924 states and 4873 transitions. Second operand 4 states. [2020-09-25 10:03:59,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:59,137 INFO L93 Difference]: Finished difference Result 11800 states and 14703 transitions. [2020-09-25 10:03:59,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:03:59,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 264 [2020-09-25 10:03:59,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:59,154 INFO L225 Difference]: With dead ends: 11800 [2020-09-25 10:03:59,155 INFO L226 Difference]: Without dead ends: 7896 [2020-09-25 10:03:59,165 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 10:03:59,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2020-09-25 10:03:59,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 3684. [2020-09-25 10:03:59,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3684 states. [2020-09-25 10:03:59,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 4565 transitions. [2020-09-25 10:03:59,298 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 4565 transitions. Word has length 264 [2020-09-25 10:03:59,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:59,299 INFO L479 AbstractCegarLoop]: Abstraction has 3684 states and 4565 transitions. [2020-09-25 10:03:59,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:03:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 4565 transitions. [2020-09-25 10:03:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-25 10:03:59,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:59,304 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:59,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 10:03:59,304 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:59,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:59,305 INFO L82 PathProgramCache]: Analyzing trace with hash -196875119, now seen corresponding path program 1 times [2020-09-25 10:03:59,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:59,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369443851] [2020-09-25 10:03:59,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:03:59,339 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:03:59,339 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:03:59,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 10:03:59,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:03:59 BoogieIcfgContainer [2020-09-25 10:03:59,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:03:59,387 INFO L168 Benchmark]: Toolchain (without parser) took 37172.00 ms. Allocated memory was 138.9 MB in the beginning and 675.3 MB in the end (delta: 536.3 MB). Free memory was 101.2 MB in the beginning and 263.4 MB in the end (delta: -162.3 MB). Peak memory consumption was 374.1 MB. Max. memory is 7.1 GB. [2020-09-25 10:03:59,389 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 10:03:59,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.56 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 100.5 MB in the beginning and 175.0 MB in the end (delta: -74.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-25 10:03:59,393 INFO L168 Benchmark]: Boogie Preprocessor took 69.96 ms. Allocated memory is still 200.3 MB. Free memory was 175.0 MB in the beginning and 172.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 10:03:59,394 INFO L168 Benchmark]: RCFGBuilder took 1033.71 ms. Allocated memory is still 200.3 MB. Free memory was 172.3 MB in the beginning and 98.9 MB in the end (delta: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:03:59,394 INFO L168 Benchmark]: TraceAbstraction took 35515.57 ms. Allocated memory was 200.3 MB in the beginning and 675.3 MB in the end (delta: 475.0 MB). Free memory was 98.9 MB in the beginning and 263.4 MB in the end (delta: -164.6 MB). Peak memory consumption was 310.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:03:59,407 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 543.56 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 100.5 MB in the beginning and 175.0 MB in the end (delta: -74.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.96 ms. Allocated memory is still 200.3 MB. Free memory was 175.0 MB in the beginning and 172.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1033.71 ms. Allocated memory is still 200.3 MB. Free memory was 172.3 MB in the beginning and 98.9 MB in the end (delta: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35515.57 ms. Allocated memory was 200.3 MB in the beginning and 675.3 MB in the end (delta: 475.0 MB). Free memory was 98.9 MB in the beginning and 263.4 MB in the end (delta: -164.6 MB). Peak memory consumption was 310.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 642]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L647] int s ; [L648] int tmp ; [L652] s = 8464 [L653] CALL ssl3_accept(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 = __VERIFIER_nondet_int() ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L72] s__state = initial_state [L73] blastFlag = 0 [L74] tmp = __VERIFIER_nondet_int() [L75] Time = tmp [L76] cb = 0 [L77] ret = -1 [L78] skip = 0 [L79] got_new_session = 0 [L80] COND TRUE s__info_callback != 0 [L81] cb = s__info_callback [L87] s__in_handshake ++ [L88] COND FALSE !(tmp___1 + 12288) [L93] COND FALSE !(s__cert == 0) [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND FALSE !(\read(s__hit)) [L294] s__state = 8512 [L296] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND TRUE s__state == 8512 [L301] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L302] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L303] COND TRUE __cil_tmp56 + 256UL [L304] skip = 1 [L315] s__state = 8528 [L316] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND FALSE !(s__state == 8512) [L142] COND FALSE !(s__state == 8513) [L145] COND TRUE s__state == 8528 [L320] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L321] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L323] __cil_tmp57 = (unsigned long )s__options [L324] COND TRUE __cil_tmp57 + 2097152UL [L325] s__s3__tmp__use_rsa_tmp = 1 [L330] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L357] ret = __VERIFIER_nondet_int() [L358] COND FALSE !(blastFlag == 6) [L361] COND FALSE !(ret <= 0) [L378] s__state = 8544 [L379] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND TRUE ! s__s3__tmp__reuse_message [L601] COND TRUE ! skip [L602] COND TRUE state == 8528 [L603] COND TRUE s__state == 8544 [L604] COND TRUE tmp___7 != 1024 [L605] COND TRUE tmp___7 != 512 [L606] COND TRUE __cil_tmp58 != 4294967294 [L607] COND TRUE l != 4294967266 [L642] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 440 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.3s, OverallIterations: 19, TraceHistogramMax: 4, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10899 SDtfs, 8009 SDslu, 15939 SDs, 0 SdLazy, 2999 SolverSat, 491 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3924occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 14086 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 25.0s InterpolantComputationTime, 4261 NumberOfCodeBlocks, 4261 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3978 ConstructedInterpolants, 0 QuantifiedInterpolants, 1280972 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 854/886 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...