/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:21:08,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:21:08,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:21:08,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:21:08,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:21:08,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:21:08,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:21:08,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:21:08,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:21:08,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:21:08,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:21:08,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:21:08,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:21:08,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:21:08,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:21:08,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:21:08,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:21:08,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:21:08,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:21:08,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:21:08,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:21:08,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:21:08,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:21:08,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:21:08,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:21:08,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:21:08,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:21:08,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:21:08,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:21:08,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:21:08,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:21:08,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:21:08,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:21:08,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:21:08,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:21:08,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:21:08,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:21:08,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:21:08,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:21:08,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:21:08,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:21:08,874 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 13:21:08,914 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:21:08,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:21:08,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:21:08,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:21:08,916 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:21:08,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:21:08,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:21:08,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:21:08,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:21:08,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:21:08,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:21:08,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:21:08,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:21:08,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:21:08,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:21:08,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:21:08,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:21:08,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:21:08,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:21:08,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:21:08,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:21:08,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:21:08,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:21:08,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:21:08,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:21:08,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:21:08,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:21:08,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:21:08,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:21:08,922 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 13:21:09,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:21:09,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:21:09,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:21:09,463 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:21:09,463 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:21:09,465 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 13:21:09,545 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbde09d2f/ca3ffbddccbe43b4a5db635d8f122042/FLAG4a5fe2623 [2020-09-25 13:21:10,174 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:21:10,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 13:21:10,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbde09d2f/ca3ffbddccbe43b4a5db635d8f122042/FLAG4a5fe2623 [2020-09-25 13:21:10,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbde09d2f/ca3ffbddccbe43b4a5db635d8f122042 [2020-09-25 13:21:10,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:21:10,477 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:21:10,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:21:10,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:21:10,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:21:10,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:21:10" (1/1) ... [2020-09-25 13:21:10,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa107a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:10, skipping insertion in model container [2020-09-25 13:21:10,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:21:10" (1/1) ... [2020-09-25 13:21:10,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:21:10,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:21:10,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:21:10,889 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:21:11,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:21:11,069 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:21:11,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:11 WrapperNode [2020-09-25 13:21:11,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:21:11,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:21:11,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:21:11,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:21:11,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:11" (1/1) ... [2020-09-25 13:21:11,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:11" (1/1) ... [2020-09-25 13:21:11,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:11" (1/1) ... [2020-09-25 13:21:11,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:11" (1/1) ... [2020-09-25 13:21:11,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:11" (1/1) ... [2020-09-25 13:21:11,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:11" (1/1) ... [2020-09-25 13:21:11,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:11" (1/1) ... [2020-09-25 13:21:11,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:21:11,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:21:11,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:21:11,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:21:11,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:11" (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 13:21:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:21:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:21:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 13:21:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:21:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:21:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:21:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 13:21:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 13:21:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:21:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:21:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:21:11,387 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 13:21:12,084 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-09-25 13:21:12,084 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-09-25 13:21:12,111 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:21:12,111 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:21:12,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:21:12 BoogieIcfgContainer [2020-09-25 13:21:12,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:21:12,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:21:12,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:21:12,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:21:12,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:21:10" (1/3) ... [2020-09-25 13:21:12,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf729f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:21:12, skipping insertion in model container [2020-09-25 13:21:12,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:21:11" (2/3) ... [2020-09-25 13:21:12,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf729f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:21:12, skipping insertion in model container [2020-09-25 13:21:12,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:21:12" (3/3) ... [2020-09-25 13:21:12,133 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-09-25 13:21:12,145 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:21:12,157 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:21:12,180 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:21:12,216 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:21:12,216 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:21:12,216 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:21:12,216 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:21:12,217 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:21:12,217 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:21:12,217 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:21:12,217 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:21:12,247 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 13:21:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:21:12,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:12,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:12,267 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:12,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:12,275 INFO L82 PathProgramCache]: Analyzing trace with hash 663725490, now seen corresponding path program 1 times [2020-09-25 13:21:12,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:12,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545955651] [2020-09-25 13:21:12,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:12,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:12,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:12,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:12,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 13:21:12,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:21:12,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-09-25 13:21:12,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:12,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:21:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 13:21:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 13:21:12,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:21:13,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:13,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:13,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:13,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:13,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:13,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:21:13,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:13,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:13,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:13,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:13,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:13,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:21:13,108 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 13:21:13,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545955651] [2020-09-25 13:21:13,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:13,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:21:13,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082995026] [2020-09-25 13:21:13,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:21:13,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:13,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:21:13,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:21:13,145 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-25 13:21:13,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:13,544 INFO L93 Difference]: Finished difference Result 635 states and 851 transitions. [2020-09-25 13:21:13,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:21:13,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 13:21:13,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:13,570 INFO L225 Difference]: With dead ends: 635 [2020-09-25 13:21:13,570 INFO L226 Difference]: Without dead ends: 334 [2020-09-25 13:21:13,577 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 13:21:13,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-25 13:21:13,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 320. [2020-09-25 13:21:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-09-25 13:21:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 380 transitions. [2020-09-25 13:21:13,657 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 380 transitions. Word has length 142 [2020-09-25 13:21:13,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:13,658 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 380 transitions. [2020-09-25 13:21:13,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:21:13,659 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 380 transitions. [2020-09-25 13:21:13,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 13:21:13,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:13,663 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:13,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:21:13,663 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:13,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:13,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1249677314, now seen corresponding path program 1 times [2020-09-25 13:21:13,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:13,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839679812] [2020-09-25 13:21:13,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:13,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:13,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:13,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:14,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:14,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:14,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 13:21:14,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:21:14,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-25 13:21:14,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:14,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:14,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:21:14,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 13:21:14,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:21:14,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:14,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:14,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:14,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:14,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:14,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:14,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:21:14,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:14,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:14,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:21:14,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:21:14,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839679812] [2020-09-25 13:21:14,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:14,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:21:14,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344669774] [2020-09-25 13:21:14,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:21:14,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:14,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:21:14,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:21:14,251 INFO L87 Difference]: Start difference. First operand 320 states and 380 transitions. Second operand 3 states. [2020-09-25 13:21:14,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:14,539 INFO L93 Difference]: Finished difference Result 578 states and 730 transitions. [2020-09-25 13:21:14,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:21:14,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-25 13:21:14,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:14,543 INFO L225 Difference]: With dead ends: 578 [2020-09-25 13:21:14,544 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 13:21:14,545 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 13:21:14,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 13:21:14,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 364. [2020-09-25 13:21:14,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-09-25 13:21:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 432 transitions. [2020-09-25 13:21:14,565 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 432 transitions. Word has length 158 [2020-09-25 13:21:14,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:14,566 INFO L479 AbstractCegarLoop]: Abstraction has 364 states and 432 transitions. [2020-09-25 13:21:14,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:21:14,567 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 432 transitions. [2020-09-25 13:21:14,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 13:21:14,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:14,570 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:14,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:21:14,570 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:14,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:14,571 INFO L82 PathProgramCache]: Analyzing trace with hash -288801966, now seen corresponding path program 1 times [2020-09-25 13:21:14,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:14,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623314074] [2020-09-25 13:21:14,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:14,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:14,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:14,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:15,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:15,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:15,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 13:21:15,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:21:15,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 673 [2020-09-25 13:21:15,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:15,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:21:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 13:21:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 13:21:15,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:15,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:15,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:15,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:15,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:15,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:15,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:21:15,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:15,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:15,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:15,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:21:15,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623314074] [2020-09-25 13:21:15,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:15,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:21:15,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380080939] [2020-09-25 13:21:15,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:21:15,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:15,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:21:15,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:21:15,336 INFO L87 Difference]: Start difference. First operand 364 states and 432 transitions. Second operand 3 states. [2020-09-25 13:21:15,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:15,634 INFO L93 Difference]: Finished difference Result 657 states and 824 transitions. [2020-09-25 13:21:15,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:21:15,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-09-25 13:21:15,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:15,638 INFO L225 Difference]: With dead ends: 657 [2020-09-25 13:21:15,638 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 13:21:15,639 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 13:21:15,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 13:21:15,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 377. [2020-09-25 13:21:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-09-25 13:21:15,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 450 transitions. [2020-09-25 13:21:15,656 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 450 transitions. Word has length 165 [2020-09-25 13:21:15,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:15,657 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 450 transitions. [2020-09-25 13:21:15,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:21:15,657 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 450 transitions. [2020-09-25 13:21:15,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 13:21:15,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:15,660 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:15,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:21:15,660 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:15,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:15,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1724791051, now seen corresponding path program 1 times [2020-09-25 13:21:15,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:15,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62255083] [2020-09-25 13:21:15,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:15,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:15,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:16,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:16,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 13:21:16,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:21:16,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-25 13:21:16,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:16,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:21:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 13:21:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:21:16,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:16,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:16,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:16,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:16,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:16,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:16,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:21:16,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:16,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:21:16,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62255083] [2020-09-25 13:21:16,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:16,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:21:16,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431236117] [2020-09-25 13:21:16,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:21:16,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:16,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:21:16,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:21:16,164 INFO L87 Difference]: Start difference. First operand 377 states and 450 transitions. Second operand 4 states. [2020-09-25 13:21:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:16,524 INFO L93 Difference]: Finished difference Result 938 states and 1171 transitions. [2020-09-25 13:21:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:21:16,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2020-09-25 13:21:16,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:16,529 INFO L225 Difference]: With dead ends: 938 [2020-09-25 13:21:16,529 INFO L226 Difference]: Without dead ends: 689 [2020-09-25 13:21:16,530 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 13:21:16,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-09-25 13:21:16,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 398. [2020-09-25 13:21:16,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-25 13:21:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 476 transitions. [2020-09-25 13:21:16,558 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 476 transitions. Word has length 167 [2020-09-25 13:21:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:16,560 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 476 transitions. [2020-09-25 13:21:16,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:21:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 476 transitions. [2020-09-25 13:21:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 13:21:16,564 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:16,564 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:16,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:21:16,565 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:16,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:16,565 INFO L82 PathProgramCache]: Analyzing trace with hash -2007825220, now seen corresponding path program 1 times [2020-09-25 13:21:16,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:16,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847581211] [2020-09-25 13:21:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:16,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:16,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:16,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:16,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:16,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 13:21:16,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:21:16,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 13:21:16,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:16,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:21:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-25 13:21:16,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 13:21:16,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:21:17,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:17,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:17,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:17,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:17,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:17,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:21:17,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:17,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:17,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:17,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:21:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:21:17,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847581211] [2020-09-25 13:21:17,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:17,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:21:17,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433342132] [2020-09-25 13:21:17,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:21:17,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:17,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:21:17,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:21:17,148 INFO L87 Difference]: Start difference. First operand 398 states and 476 transitions. Second operand 3 states. [2020-09-25 13:21:17,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:17,194 INFO L93 Difference]: Finished difference Result 713 states and 872 transitions. [2020-09-25 13:21:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:21:17,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 13:21:17,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:17,198 INFO L225 Difference]: With dead ends: 713 [2020-09-25 13:21:17,199 INFO L226 Difference]: Without dead ends: 443 [2020-09-25 13:21:17,200 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 13:21:17,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-09-25 13:21:17,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2020-09-25 13:21:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-09-25 13:21:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 528 transitions. [2020-09-25 13:21:17,219 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 528 transitions. Word has length 180 [2020-09-25 13:21:17,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:17,219 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 528 transitions. [2020-09-25 13:21:17,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:21:17,219 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 528 transitions. [2020-09-25 13:21:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 13:21:17,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:17,222 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:17,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:21:17,222 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:17,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:17,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1957933229, now seen corresponding path program 1 times [2020-09-25 13:21:17,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:17,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339609473] [2020-09-25 13:21:17,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:17,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:17,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:17,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:17,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 13:21:17,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:21:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-09-25 13:21:17,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:17,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:17,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:21:17,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 13:21:17,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:21:17,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:17,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:17,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:17,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:17,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:17,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:17,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:21:17,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:17,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:17,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:17,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:17,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:17,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:21:17,703 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:21:17,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339609473] [2020-09-25 13:21:17,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:17,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:21:17,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458376161] [2020-09-25 13:21:17,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:21:17,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:17,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:21:17,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:21:17,709 INFO L87 Difference]: Start difference. First operand 443 states and 528 transitions. Second operand 3 states. [2020-09-25 13:21:17,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:17,883 INFO L93 Difference]: Finished difference Result 744 states and 915 transitions. [2020-09-25 13:21:17,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:21:17,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 13:21:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:17,886 INFO L225 Difference]: With dead ends: 744 [2020-09-25 13:21:17,886 INFO L226 Difference]: Without dead ends: 474 [2020-09-25 13:21:17,887 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 13:21:17,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-09-25 13:21:17,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 463. [2020-09-25 13:21:17,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-25 13:21:17,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 553 transitions. [2020-09-25 13:21:17,904 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 553 transitions. Word has length 181 [2020-09-25 13:21:17,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:17,904 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 553 transitions. [2020-09-25 13:21:17,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:21:17,905 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 553 transitions. [2020-09-25 13:21:17,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 13:21:17,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:17,907 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:17,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:21:17,908 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:17,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:17,908 INFO L82 PathProgramCache]: Analyzing trace with hash 129935299, now seen corresponding path program 1 times [2020-09-25 13:21:17,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:17,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143632069] [2020-09-25 13:21:17,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:17,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:18,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:18,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:18,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:18,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 13:21:18,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:21:18,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-09-25 13:21:18,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:18,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:18,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:21:18,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 13:21:18,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:21:18,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:18,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:18,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:18,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:18,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:18,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:18,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:21:18,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:18,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:18,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:18,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:18,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:21:18,754 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:21:18,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143632069] [2020-09-25 13:21:18,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:18,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:21:18,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741390514] [2020-09-25 13:21:18,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:21:18,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:18,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:21:18,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:21:18,757 INFO L87 Difference]: Start difference. First operand 463 states and 553 transitions. Second operand 3 states. [2020-09-25 13:21:18,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:18,785 INFO L93 Difference]: Finished difference Result 1011 states and 1237 transitions. [2020-09-25 13:21:18,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:21:18,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-09-25 13:21:18,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:18,790 INFO L225 Difference]: With dead ends: 1011 [2020-09-25 13:21:18,790 INFO L226 Difference]: Without dead ends: 721 [2020-09-25 13:21:18,791 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 13:21:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-09-25 13:21:18,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 719. [2020-09-25 13:21:18,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-25 13:21:18,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 863 transitions. [2020-09-25 13:21:18,814 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 863 transitions. Word has length 188 [2020-09-25 13:21:18,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:18,814 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 863 transitions. [2020-09-25 13:21:18,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:21:18,815 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 863 transitions. [2020-09-25 13:21:18,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 13:21:18,817 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:18,818 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:18,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:21:18,818 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:18,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:18,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1932501654, now seen corresponding path program 1 times [2020-09-25 13:21:18,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:18,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75781202] [2020-09-25 13:21:18,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:18,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:18,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:19,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:19,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:19,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 13:21:19,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:21:19,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-09-25 13:21:19,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:19,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:21:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 122 [2020-09-25 13:21:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 13:21:19,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:21:19,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:19,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:19,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:19,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:19,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:19,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:21:19,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:19,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:21:19,568 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 13:21:19,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75781202] [2020-09-25 13:21:19,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:19,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:21:19,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845061299] [2020-09-25 13:21:19,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:21:19,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:19,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:21:19,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:21:19,572 INFO L87 Difference]: Start difference. First operand 719 states and 863 transitions. Second operand 3 states. [2020-09-25 13:21:19,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:19,608 INFO L93 Difference]: Finished difference Result 1274 states and 1552 transitions. [2020-09-25 13:21:19,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:21:19,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-09-25 13:21:19,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:19,614 INFO L225 Difference]: With dead ends: 1274 [2020-09-25 13:21:19,614 INFO L226 Difference]: Without dead ends: 728 [2020-09-25 13:21:19,616 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 13:21:19,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-09-25 13:21:19,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 723. [2020-09-25 13:21:19,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-09-25 13:21:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 863 transitions. [2020-09-25 13:21:19,643 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 863 transitions. Word has length 189 [2020-09-25 13:21:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:19,644 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 863 transitions. [2020-09-25 13:21:19,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:21:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 863 transitions. [2020-09-25 13:21:19,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 13:21:19,649 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:19,650 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:19,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 13:21:19,651 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:19,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:19,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1261577978, now seen corresponding path program 1 times [2020-09-25 13:21:19,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:19,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321840500] [2020-09-25 13:21:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:19,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:19,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:19,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:20,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:20,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:20,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:20,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 13:21:20,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:21:20,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1240 [2020-09-25 13:21:20,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:20,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:20,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:21:20,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-25 13:21:20,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 13:21:20,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:21:20,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:20,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:20,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:20,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:20,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:20,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:21:20,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:20,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:20,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:20,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:20,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:21,050 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:21:21,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321840500] [2020-09-25 13:21:21,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:21,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:21:21,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874996684] [2020-09-25 13:21:21,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:21:21,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:21,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:21:21,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:21:21,063 INFO L87 Difference]: Start difference. First operand 723 states and 863 transitions. Second operand 3 states. [2020-09-25 13:21:21,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:21,121 INFO L93 Difference]: Finished difference Result 1902 states and 2308 transitions. [2020-09-25 13:21:21,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:21:21,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-09-25 13:21:21,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:21,131 INFO L225 Difference]: With dead ends: 1902 [2020-09-25 13:21:21,131 INFO L226 Difference]: Without dead ends: 1312 [2020-09-25 13:21:21,133 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 13:21:21,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2020-09-25 13:21:21,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1310. [2020-09-25 13:21:21,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-09-25 13:21:21,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1574 transitions. [2020-09-25 13:21:21,195 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1574 transitions. Word has length 191 [2020-09-25 13:21:21,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:21,196 INFO L479 AbstractCegarLoop]: Abstraction has 1310 states and 1574 transitions. [2020-09-25 13:21:21,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:21:21,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1574 transitions. [2020-09-25 13:21:21,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 13:21:21,202 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:21,203 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:21,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 13:21:21,203 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:21,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:21,204 INFO L82 PathProgramCache]: Analyzing trace with hash 2059637971, now seen corresponding path program 1 times [2020-09-25 13:21:21,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:21,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316979140] [2020-09-25 13:21:21,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:21,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:21,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:21,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:21,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:21,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:21,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:21,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:22,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:23,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:23,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 13:21:23,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:21:23,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2584 [2020-09-25 13:21:23,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:23,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:21:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 13:21:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 13:21:23,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:23,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:23,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:23,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:23,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:23,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:23,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:21:23,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:23,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:23,902 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 13:21:23,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316979140] [2020-09-25 13:21:23,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:21:23,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 13:21:23,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973753755] [2020-09-25 13:21:23,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:21:23,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:23,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:21:23,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:21:23,905 INFO L87 Difference]: Start difference. First operand 1310 states and 1574 transitions. Second operand 4 states. [2020-09-25 13:21:24,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:24,088 INFO L93 Difference]: Finished difference Result 2383 states and 2894 transitions. [2020-09-25 13:21:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:21:24,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2020-09-25 13:21:24,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:24,097 INFO L225 Difference]: With dead ends: 2383 [2020-09-25 13:21:24,098 INFO L226 Difference]: Without dead ends: 1310 [2020-09-25 13:21:24,101 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 13:21:24,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2020-09-25 13:21:24,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1310. [2020-09-25 13:21:24,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-09-25 13:21:24,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1573 transitions. [2020-09-25 13:21:24,179 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1573 transitions. Word has length 192 [2020-09-25 13:21:24,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:24,179 INFO L479 AbstractCegarLoop]: Abstraction has 1310 states and 1573 transitions. [2020-09-25 13:21:24,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:21:24,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1573 transitions. [2020-09-25 13:21:24,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 13:21:24,184 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:24,184 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:24,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 13:21:24,185 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:24,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:24,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1020047875, now seen corresponding path program 1 times [2020-09-25 13:21:24,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:24,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720256855] [2020-09-25 13:21:24,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:24,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:24,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:24,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:24,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-25 13:21:24,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:21:24,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-09-25 13:21:24,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:24,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:21:24,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 13:21:24,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 13:21:24,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:21:24,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:21:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:21:24,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:21:24,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:21:24,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:21:24,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:21:24,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:21:24,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:21:24,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:21:24,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:21:24,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:21:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:21:24,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:21:24,778 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:21:24,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720256855] [2020-09-25 13:21:24,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:21:24,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:21:24,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261387773] [2020-09-25 13:21:24,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:21:24,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:21:24,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:21:24,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:21:24,781 INFO L87 Difference]: Start difference. First operand 1310 states and 1573 transitions. Second operand 4 states. [2020-09-25 13:21:25,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:21:25,208 INFO L93 Difference]: Finished difference Result 3511 states and 4292 transitions. [2020-09-25 13:21:25,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:21:25,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-09-25 13:21:25,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:21:25,221 INFO L225 Difference]: With dead ends: 3511 [2020-09-25 13:21:25,221 INFO L226 Difference]: Without dead ends: 2452 [2020-09-25 13:21:25,226 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 13:21:25,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2020-09-25 13:21:25,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 1313. [2020-09-25 13:21:25,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1313 states. [2020-09-25 13:21:25,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1576 transitions. [2020-09-25 13:21:25,304 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1576 transitions. Word has length 195 [2020-09-25 13:21:25,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:21:25,304 INFO L479 AbstractCegarLoop]: Abstraction has 1313 states and 1576 transitions. [2020-09-25 13:21:25,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:21:25,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1576 transitions. [2020-09-25 13:21:25,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 13:21:25,308 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:21:25,308 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:21:25,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 13:21:25,309 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:21:25,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:21:25,309 INFO L82 PathProgramCache]: Analyzing trace with hash 192610461, now seen corresponding path program 1 times [2020-09-25 13:21:25,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:21:25,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474587425] [2020-09-25 13:21:25,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:21:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:21:25,348 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:21:25,349 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:21:25,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 13:21:25,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:21:25 BoogieIcfgContainer [2020-09-25 13:21:25,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:21:25,420 INFO L168 Benchmark]: Toolchain (without parser) took 14944.51 ms. Allocated memory was 145.2 MB in the beginning and 465.0 MB in the end (delta: 319.8 MB). Free memory was 101.3 MB in the beginning and 390.7 MB in the end (delta: -289.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:21:25,425 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:21:25,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.25 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 100.7 MB in the beginning and 176.9 MB in the end (delta: -76.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:21:25,431 INFO L168 Benchmark]: Boogie Preprocessor took 64.85 ms. Allocated memory is still 201.3 MB. Free memory was 176.9 MB in the beginning and 174.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:21:25,432 INFO L168 Benchmark]: RCFGBuilder took 985.20 ms. Allocated memory is still 201.3 MB. Free memory was 174.2 MB in the beginning and 113.8 MB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:21:25,434 INFO L168 Benchmark]: TraceAbstraction took 13293.39 ms. Allocated memory was 201.3 MB in the beginning and 465.0 MB in the end (delta: 263.7 MB). Free memory was 113.1 MB in the beginning and 390.7 MB in the end (delta: -277.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:21:25,446 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 592.25 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 100.7 MB in the beginning and 176.9 MB in the end (delta: -76.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.85 ms. Allocated memory is still 201.3 MB. Free memory was 176.9 MB in the beginning and 174.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 985.20 ms. Allocated memory is still 201.3 MB. Free memory was 174.2 MB in the beginning and 113.8 MB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13293.39 ms. Allocated memory was 201.3 MB in the beginning and 465.0 MB in the end (delta: 263.7 MB). Free memory was 113.1 MB in the beginning and 390.7 MB in the end (delta: -277.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 614]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 301. Possible FailurePath: [L623] int __retres1 ; [L627] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int ag_Z ; [L64] int __retres60 ; [L67] s__state = 12292 [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] cb = 0 [L71] ret = -1 [L72] skip = 0 [L73] tmp___0 = 0 [L74] COND TRUE s__info_callback != 0 [L75] cb = s__info_callback [L83] s__in_handshake = s__in_handshake + 1 [L84] COND FALSE !(tmp___1 + 12288) [L93] COND TRUE \read(s__hit) [L94] ag_Y = 208 [L99] COND TRUE 1 [L101] state = s__state [L102] COND TRUE s__state == 12292 [L205] s__new_session = 1 [L206] s__state = 4096 [L207] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L212] s__server = 0 [L213] COND TRUE cb != 0 [L218] COND FALSE !(s__version + 65280 != 768) [L224] s__type = 4096 [L225] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L243] COND FALSE !(! tmp___4) [L249] COND FALSE !(! tmp___5) [L255] s__state = 4368 [L256] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L257] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND TRUE s__state == 4368 [L261] s__shutdown = 0 [L262] ret = __VERIFIER_nondet_int() [L263] COND TRUE blastFlag == 0 [L264] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] ag_X = s__state - 32 [L275] s__init_num = 0 [L276] COND FALSE !((unsigned long )s__bbio != (unsigned long )s__wbio) [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND TRUE s__state == 4384 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L294] COND FALSE !(ret <= 0) [L299] s__state = ag_X [L300] COND TRUE \read(s__hit) [L301] s__state = s__state | ag_Y [L305] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND FALSE !(s__state == 4384) [L126] COND FALSE !(s__state == 4385) [L129] COND FALSE !(s__state == 4400) [L132] COND FALSE !(s__state == 4401) [L135] COND FALSE !(s__state == 4416) [L138] COND FALSE !(s__state == 4417) [L141] COND TRUE s__state == 4432 [L351] ret = __VERIFIER_nondet_int() [L352] COND TRUE blastFlag <= 5 [L614] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 350 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.1s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4985 SDtfs, 1653 SDslu, 4372 SDs, 0 SdLazy, 1032 SolverSat, 147 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1313occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 1533 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 2151 NumberOfCodeBlocks, 2151 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1937 ConstructedInterpolants, 0 QuantifiedInterpolants, 450358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 137/138 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...