/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh/s3_srvr.blast.07.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 04:37:39,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 04:37:39,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 04:37:39,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 04:37:39,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 04:37:39,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 04:37:39,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 04:37:39,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 04:37:39,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 04:37:39,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 04:37:39,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 04:37:39,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 04:37:39,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 04:37:39,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 04:37:39,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 04:37:39,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 04:37:39,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 04:37:39,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 04:37:39,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 04:37:39,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 04:37:39,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 04:37:39,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 04:37:39,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 04:37:39,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 04:37:39,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 04:37:39,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 04:37:39,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 04:37:39,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 04:37:39,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 04:37:39,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 04:37:39,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 04:37:39,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 04:37:39,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 04:37:39,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 04:37:39,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 04:37:39,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 04:37:39,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 04:37:39,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 04:37:39,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 04:37:39,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 04:37:39,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 04:37:39,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 04:37:39,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 04:37:39,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 04:37:39,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 04:37:39,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 04:37:39,246 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 04:37:39,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 04:37:39,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 04:37:39,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 04:37:39,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 04:37:39,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 04:37:39,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 04:37:39,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 04:37:39,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 04:37:39,248 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 04:37:39,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 04:37:39,248 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 04:37:39,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 04:37:39,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 04:37:39,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 04:37:39,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 04:37:39,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 04:37:39,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:37:39,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 04:37:39,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 04:37:39,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 04:37:39,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 04:37:39,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 04:37:39,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 04:37:39,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 04:37:39,251 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 04:37:39,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 04:37:39,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 04:37:39,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 04:37:39,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 04:37:39,562 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 04:37:39,563 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh/s3_srvr.blast.07.i.cil-2.c [2020-10-15 04:37:39,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed359f507/671140a5a9da49faad4c09660ae54596/FLAG1b5a81c8f [2020-10-15 04:37:40,281 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 04:37:40,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh/s3_srvr.blast.07.i.cil-2.c [2020-10-15 04:37:40,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed359f507/671140a5a9da49faad4c09660ae54596/FLAG1b5a81c8f [2020-10-15 04:37:40,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed359f507/671140a5a9da49faad4c09660ae54596 [2020-10-15 04:37:40,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 04:37:40,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 04:37:40,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 04:37:40,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 04:37:40,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 04:37:40,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:37:40" (1/1) ... [2020-10-15 04:37:40,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f214b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:40, skipping insertion in model container [2020-10-15 04:37:40,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:37:40" (1/1) ... [2020-10-15 04:37:40,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 04:37:40,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 04:37:41,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:37:41,338 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 04:37:41,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:37:41,580 INFO L208 MainTranslator]: Completed translation [2020-10-15 04:37:41,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:41 WrapperNode [2020-10-15 04:37:41,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 04:37:41,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 04:37:41,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 04:37:41,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 04:37:41,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:41" (1/1) ... [2020-10-15 04:37:41,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:41" (1/1) ... [2020-10-15 04:37:41,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:41" (1/1) ... [2020-10-15 04:37:41,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:41" (1/1) ... [2020-10-15 04:37:41,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:41" (1/1) ... [2020-10-15 04:37:41,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:41" (1/1) ... [2020-10-15 04:37:41,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:41" (1/1) ... [2020-10-15 04:37:41,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 04:37:41,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 04:37:41,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 04:37:41,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 04:37:41,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:37:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 04:37:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 04:37:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2020-10-15 04:37:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2020-10-15 04:37:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 04:37:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-15 04:37:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2020-10-15 04:37:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-15 04:37:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-15 04:37:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 04:37:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 04:37:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 04:37:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 04:37:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-15 04:37:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 04:37:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-15 04:37:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2020-10-15 04:37:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2020-10-15 04:37:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-15 04:37:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2020-10-15 04:37:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-15 04:37:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 04:37:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 04:37:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 04:37:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 04:37:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 04:37:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 04:37:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-15 04:37:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-15 04:37:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 04:37:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 04:37:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 04:37:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-15 04:37:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-15 04:37:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-15 04:37:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-15 04:37:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 04:37:42,341 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 04:37:43,050 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-10-15 04:37:43,051 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-10-15 04:37:43,074 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 04:37:43,075 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 04:37:43,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:37:43 BoogieIcfgContainer [2020-10-15 04:37:43,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 04:37:43,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 04:37:43,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 04:37:43,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 04:37:43,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:37:40" (1/3) ... [2020-10-15 04:37:43,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75937054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:37:43, skipping insertion in model container [2020-10-15 04:37:43,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:37:41" (2/3) ... [2020-10-15 04:37:43,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75937054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:37:43, skipping insertion in model container [2020-10-15 04:37:43,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:37:43" (3/3) ... [2020-10-15 04:37:43,090 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-2.c [2020-10-15 04:37:43,102 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 04:37:43,110 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 04:37:43,125 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 04:37:43,150 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 04:37:43,151 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 04:37:43,151 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 04:37:43,151 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 04:37:43,151 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 04:37:43,151 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 04:37:43,152 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 04:37:43,152 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 04:37:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2020-10-15 04:37:43,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 04:37:43,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:43,186 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] [2020-10-15 04:37:43,187 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:43,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:43,193 INFO L82 PathProgramCache]: Analyzing trace with hash 237777211, now seen corresponding path program 1 times [2020-10-15 04:37:43,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:43,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361106713] [2020-10-15 04:37:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:43,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:43,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:44,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:44,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:44,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 04:37:44,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:37:44,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1409 [2020-10-15 04:37:44,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:44,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:37:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 04:37:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 04:37:44,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 04:37:44,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:44,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:44,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:44,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:44,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:44,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 04:37:44,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:44,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:44,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:44,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:44,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:37:44,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361106713] [2020-10-15 04:37:44,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:44,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:37:44,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064510701] [2020-10-15 04:37:44,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:37:44,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:44,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:37:44,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:44,993 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 4 states. [2020-10-15 04:37:45,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:45,781 INFO L93 Difference]: Finished difference Result 436 states and 738 transitions. [2020-10-15 04:37:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:37:45,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-15 04:37:45,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:45,800 INFO L225 Difference]: With dead ends: 436 [2020-10-15 04:37:45,800 INFO L226 Difference]: Without dead ends: 266 [2020-10-15 04:37:45,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:45,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-15 04:37:45,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-15 04:37:45,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-15 04:37:45,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 399 transitions. [2020-10-15 04:37:45,881 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 399 transitions. Word has length 41 [2020-10-15 04:37:45,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:37:45,882 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 399 transitions. [2020-10-15 04:37:45,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:37:45,882 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 399 transitions. [2020-10-15 04:37:45,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 04:37:45,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:45,886 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:37:45,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 04:37:45,887 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:45,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:45,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1380545738, now seen corresponding path program 1 times [2020-10-15 04:37:45,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:45,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282512803] [2020-10-15 04:37:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:45,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:45,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:46,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:47,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:47,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-15 04:37:47,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:37:47,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1099 [2020-10-15 04:37:47,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:47,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:47,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:37:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 04:37:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-15 04:37:47,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:47,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:47,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:47,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:47,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:47,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:47,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 04:37:47,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:47,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:47,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:37:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:37:47,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282512803] [2020-10-15 04:37:47,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:47,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:37:47,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969132575] [2020-10-15 04:37:47,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:37:47,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:47,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:37:47,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:47,171 INFO L87 Difference]: Start difference. First operand 266 states and 399 transitions. Second operand 4 states. [2020-10-15 04:37:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:47,727 INFO L93 Difference]: Finished difference Result 518 states and 790 transitions. [2020-10-15 04:37:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:37:47,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-15 04:37:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:47,731 INFO L225 Difference]: With dead ends: 518 [2020-10-15 04:37:47,731 INFO L226 Difference]: Without dead ends: 391 [2020-10-15 04:37:47,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-10-15 04:37:47,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2020-10-15 04:37:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-10-15 04:37:47,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 586 transitions. [2020-10-15 04:37:47,758 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 586 transitions. Word has length 58 [2020-10-15 04:37:47,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:37:47,759 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 586 transitions. [2020-10-15 04:37:47,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:37:47,759 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 586 transitions. [2020-10-15 04:37:47,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 04:37:47,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:47,773 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:37:47,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 04:37:47,774 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:47,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:47,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1465335169, now seen corresponding path program 1 times [2020-10-15 04:37:47,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:47,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62103396] [2020-10-15 04:37:47,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:47,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:48,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:48,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:48,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-15 04:37:48,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:37:48,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-10-15 04:37:48,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:48,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:37:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-15 04:37:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 04:37:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:48,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:48,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:48,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:48,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:48,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:48,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 04:37:48,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:48,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:48,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:48,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:48,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 04:37:48,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62103396] [2020-10-15 04:37:48,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:48,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:37:48,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334969745] [2020-10-15 04:37:48,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:37:48,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:48,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:37:48,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:48,643 INFO L87 Difference]: Start difference. First operand 391 states and 586 transitions. Second operand 4 states. [2020-10-15 04:37:49,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:49,189 INFO L93 Difference]: Finished difference Result 768 states and 1164 transitions. [2020-10-15 04:37:49,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:37:49,190 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2020-10-15 04:37:49,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:49,197 INFO L225 Difference]: With dead ends: 768 [2020-10-15 04:37:49,197 INFO L226 Difference]: Without dead ends: 516 [2020-10-15 04:37:49,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:49,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-10-15 04:37:49,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2020-10-15 04:37:49,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2020-10-15 04:37:49,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 775 transitions. [2020-10-15 04:37:49,245 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 775 transitions. Word has length 80 [2020-10-15 04:37:49,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:37:49,246 INFO L479 AbstractCegarLoop]: Abstraction has 516 states and 775 transitions. [2020-10-15 04:37:49,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:37:49,251 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 775 transitions. [2020-10-15 04:37:49,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 04:37:49,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:49,264 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:37:49,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 04:37:49,265 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:49,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:49,266 INFO L82 PathProgramCache]: Analyzing trace with hash 322420460, now seen corresponding path program 1 times [2020-10-15 04:37:49,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:49,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626854220] [2020-10-15 04:37:49,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:49,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:49,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:50,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:50,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:52,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:52,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 04:37:52,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:37:52,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3119 [2020-10-15 04:37:52,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:52,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:52,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:37:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-15 04:37:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 04:37:52,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:52,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:52,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:52,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:52,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:52,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:52,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 04:37:52,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:52,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:52,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:52,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:52,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:52,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:52,567 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-15 04:37:52,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626854220] [2020-10-15 04:37:52,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:52,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:37:52,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580429804] [2020-10-15 04:37:52,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:37:52,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:52,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:37:52,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:52,570 INFO L87 Difference]: Start difference. First operand 516 states and 775 transitions. Second operand 4 states. [2020-10-15 04:37:53,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:53,095 INFO L93 Difference]: Finished difference Result 1020 states and 1543 transitions. [2020-10-15 04:37:53,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:37:53,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2020-10-15 04:37:53,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:53,100 INFO L225 Difference]: With dead ends: 1020 [2020-10-15 04:37:53,101 INFO L226 Difference]: Without dead ends: 643 [2020-10-15 04:37:53,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:53,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-10-15 04:37:53,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 641. [2020-10-15 04:37:53,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-10-15 04:37:53,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 968 transitions. [2020-10-15 04:37:53,127 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 968 transitions. Word has length 104 [2020-10-15 04:37:53,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:37:53,128 INFO L479 AbstractCegarLoop]: Abstraction has 641 states and 968 transitions. [2020-10-15 04:37:53,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:37:53,128 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 968 transitions. [2020-10-15 04:37:53,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-15 04:37:53,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:53,131 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-15 04:37:53,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 04:37:53,131 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:53,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:53,131 INFO L82 PathProgramCache]: Analyzing trace with hash 578068042, now seen corresponding path program 1 times [2020-10-15 04:37:53,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:53,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850606495] [2020-10-15 04:37:53,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:53,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:53,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:53,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:54,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:56,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:56,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 04:37:56,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:37:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2842 [2020-10-15 04:37:56,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:56,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:37:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-15 04:37:56,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 04:37:56,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:56,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:56,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:56,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:56,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:56,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:56,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 04:37:56,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:56,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:56,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:56,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:56,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:56,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-15 04:37:56,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850606495] [2020-10-15 04:37:56,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:56,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:37:56,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349970088] [2020-10-15 04:37:56,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:37:56,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:56,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:37:56,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:56,123 INFO L87 Difference]: Start difference. First operand 641 states and 968 transitions. Second operand 4 states. [2020-10-15 04:37:57,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:57,067 INFO L93 Difference]: Finished difference Result 1270 states and 1927 transitions. [2020-10-15 04:37:57,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:37:57,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-10-15 04:37:57,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:57,077 INFO L225 Difference]: With dead ends: 1270 [2020-10-15 04:37:57,078 INFO L226 Difference]: Without dead ends: 768 [2020-10-15 04:37:57,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2020-10-15 04:37:57,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 766. [2020-10-15 04:37:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2020-10-15 04:37:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1147 transitions. [2020-10-15 04:37:57,116 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1147 transitions. Word has length 110 [2020-10-15 04:37:57,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:37:57,120 INFO L479 AbstractCegarLoop]: Abstraction has 766 states and 1147 transitions. [2020-10-15 04:37:57,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:37:57,120 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1147 transitions. [2020-10-15 04:37:57,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-15 04:37:57,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:57,125 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:37:57,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 04:37:57,125 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:57,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:57,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1771988853, now seen corresponding path program 1 times [2020-10-15 04:37:57,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:57,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389374006] [2020-10-15 04:37:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:57,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:57,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:57,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:57,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-15 04:37:57,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:37:57,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-15 04:37:57,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:57,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:37:57,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-15 04:37:57,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 04:37:57,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:57,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:57,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:57,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:57,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:57,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:57,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:37:57,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:57,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:57,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-15 04:37:57,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389374006] [2020-10-15 04:37:57,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:57,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:37:57,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221310879] [2020-10-15 04:37:57,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:37:57,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:57,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:37:57,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:57,845 INFO L87 Difference]: Start difference. First operand 766 states and 1147 transitions. Second operand 4 states. [2020-10-15 04:37:58,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:58,350 INFO L93 Difference]: Finished difference Result 1518 states and 2284 transitions. [2020-10-15 04:37:58,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:37:58,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-10-15 04:37:58,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:58,358 INFO L225 Difference]: With dead ends: 1518 [2020-10-15 04:37:58,358 INFO L226 Difference]: Without dead ends: 891 [2020-10-15 04:37:58,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:58,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2020-10-15 04:37:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2020-10-15 04:37:58,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2020-10-15 04:37:58,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1337 transitions. [2020-10-15 04:37:58,387 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1337 transitions. Word has length 127 [2020-10-15 04:37:58,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:37:58,388 INFO L479 AbstractCegarLoop]: Abstraction has 891 states and 1337 transitions. [2020-10-15 04:37:58,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:37:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1337 transitions. [2020-10-15 04:37:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-15 04:37:58,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:37:58,395 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:37:58,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 04:37:58,395 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:37:58,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:37:58,396 INFO L82 PathProgramCache]: Analyzing trace with hash -443568933, now seen corresponding path program 1 times [2020-10-15 04:37:58,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:37:58,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389212717] [2020-10-15 04:37:58,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:37:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:58,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:58,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:59,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:59,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 04:37:59,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:37:59,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 960 [2020-10-15 04:37:59,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:59,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:59,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:37:59,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-15 04:37:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 04:37:59,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:59,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:37:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:37:59,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:37:59,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:37:59,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:37:59,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:37:59,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 04:37:59,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:37:59,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:37:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:37:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:37:59,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:37:59,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:37:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-15 04:37:59,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389212717] [2020-10-15 04:37:59,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:37:59,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 04:37:59,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377797803] [2020-10-15 04:37:59,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 04:37:59,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:37:59,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 04:37:59,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:59,520 INFO L87 Difference]: Start difference. First operand 891 states and 1337 transitions. Second operand 4 states. [2020-10-15 04:37:59,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:37:59,982 INFO L93 Difference]: Finished difference Result 1020 states and 1527 transitions. [2020-10-15 04:37:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 04:37:59,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 133 [2020-10-15 04:37:59,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:37:59,988 INFO L225 Difference]: With dead ends: 1020 [2020-10-15 04:37:59,989 INFO L226 Difference]: Without dead ends: 1018 [2020-10-15 04:37:59,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 04:37:59,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2020-10-15 04:38:00,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 1016. [2020-10-15 04:38:00,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1016 states. [2020-10-15 04:38:00,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1524 transitions. [2020-10-15 04:38:00,019 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1524 transitions. Word has length 133 [2020-10-15 04:38:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:38:00,020 INFO L479 AbstractCegarLoop]: Abstraction has 1016 states and 1524 transitions. [2020-10-15 04:38:00,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 04:38:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1524 transitions. [2020-10-15 04:38:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-15 04:38:00,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:38:00,024 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:38:00,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 04:38:00,025 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:38:00,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:38:00,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1212581923, now seen corresponding path program 1 times [2020-10-15 04:38:00,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:38:00,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432172506] [2020-10-15 04:38:00,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:38:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:00,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:01,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:05,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:05,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-15 04:38:05,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:38:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-15 04:38:05,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:05,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 04:38:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:38:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-15 04:38:05,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:38:05,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:38:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:05,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:05,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:05,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:38:05,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:38:05,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 04:38:05,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:05,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:38:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:38:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:38:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:38:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-15 04:38:05,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432172506] [2020-10-15 04:38:05,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:38:05,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 04:38:05,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67165853] [2020-10-15 04:38:05,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 04:38:05,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:38:05,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 04:38:05,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 04:38:05,743 INFO L87 Difference]: Start difference. First operand 1016 states and 1524 transitions. Second operand 11 states. [2020-10-15 04:38:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:38:09,413 INFO L93 Difference]: Finished difference Result 6116 states and 9238 transitions. [2020-10-15 04:38:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 04:38:09,414 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 170 [2020-10-15 04:38:09,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:38:09,439 INFO L225 Difference]: With dead ends: 6116 [2020-10-15 04:38:09,439 INFO L226 Difference]: Without dead ends: 5114 [2020-10-15 04:38:09,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2020-10-15 04:38:09,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5114 states. [2020-10-15 04:38:09,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5114 to 2560. [2020-10-15 04:38:09,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2560 states. [2020-10-15 04:38:09,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 4078 transitions. [2020-10-15 04:38:09,564 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 4078 transitions. Word has length 170 [2020-10-15 04:38:09,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:38:09,565 INFO L479 AbstractCegarLoop]: Abstraction has 2560 states and 4078 transitions. [2020-10-15 04:38:09,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 04:38:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 4078 transitions. [2020-10-15 04:38:09,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-15 04:38:09,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:38:09,572 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:38:09,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 04:38:09,572 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:38:09,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:38:09,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1057658723, now seen corresponding path program 1 times [2020-10-15 04:38:09,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:38:09,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077326606] [2020-10-15 04:38:09,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:38:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:09,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:09,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:12,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:14,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:14,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-15 04:38:14,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:38:14,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4600 [2020-10-15 04:38:14,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:14,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:14,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 04:38:14,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:38:14,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-15 04:38:14,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:38:14,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:38:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:14,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:14,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:14,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:38:14,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:38:14,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:38:14,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:14,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:14,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:38:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:38:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:38:14,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:38:14,877 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 16 proven. 174 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 04:38:14,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077326606] [2020-10-15 04:38:14,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:38:14,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 04:38:14,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272890494] [2020-10-15 04:38:14,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 04:38:14,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:38:14,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 04:38:14,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 04:38:14,881 INFO L87 Difference]: Start difference. First operand 2560 states and 4078 transitions. Second operand 11 states. [2020-10-15 04:38:18,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:38:18,619 INFO L93 Difference]: Finished difference Result 9409 states and 14926 transitions. [2020-10-15 04:38:18,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 04:38:18,620 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 171 [2020-10-15 04:38:18,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:38:18,656 INFO L225 Difference]: With dead ends: 9409 [2020-10-15 04:38:18,657 INFO L226 Difference]: Without dead ends: 6863 [2020-10-15 04:38:18,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2020-10-15 04:38:18,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6863 states. [2020-10-15 04:38:18,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6863 to 5425. [2020-10-15 04:38:18,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5425 states. [2020-10-15 04:38:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5425 states to 5425 states and 8897 transitions. [2020-10-15 04:38:18,919 INFO L78 Accepts]: Start accepts. Automaton has 5425 states and 8897 transitions. Word has length 171 [2020-10-15 04:38:18,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:38:18,920 INFO L479 AbstractCegarLoop]: Abstraction has 5425 states and 8897 transitions. [2020-10-15 04:38:18,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 04:38:18,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5425 states and 8897 transitions. [2020-10-15 04:38:18,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-15 04:38:18,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:38:18,937 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-15 04:38:18,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 04:38:18,938 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:38:18,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:38:18,938 INFO L82 PathProgramCache]: Analyzing trace with hash -268440010, now seen corresponding path program 1 times [2020-10-15 04:38:18,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:38:18,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157954983] [2020-10-15 04:38:18,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:38:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:19,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:19,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:19,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:21,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:24,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:24,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-15 04:38:24,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:38:24,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-15 04:38:24,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:24,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:38:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-15 04:38:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 04:38:24,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:24,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:38:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:24,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:24,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:24,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:38:24,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:38:24,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:38:24,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:24,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:24,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:38:24,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:38:24,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:38:24,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-15 04:38:24,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157954983] [2020-10-15 04:38:24,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:38:24,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:38:24,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273112034] [2020-10-15 04:38:24,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:38:24,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:38:24,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:38:24,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:38:24,141 INFO L87 Difference]: Start difference. First operand 5425 states and 8897 transitions. Second operand 5 states. [2020-10-15 04:38:25,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:38:25,231 INFO L93 Difference]: Finished difference Result 12638 states and 20457 transitions. [2020-10-15 04:38:25,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:38:25,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 176 [2020-10-15 04:38:25,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:38:25,274 INFO L225 Difference]: With dead ends: 12638 [2020-10-15 04:38:25,275 INFO L226 Difference]: Without dead ends: 8117 [2020-10-15 04:38:25,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:38:25,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8117 states. [2020-10-15 04:38:25,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8117 to 6614. [2020-10-15 04:38:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6614 states. [2020-10-15 04:38:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6614 states to 6614 states and 11072 transitions. [2020-10-15 04:38:25,508 INFO L78 Accepts]: Start accepts. Automaton has 6614 states and 11072 transitions. Word has length 176 [2020-10-15 04:38:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:38:25,509 INFO L479 AbstractCegarLoop]: Abstraction has 6614 states and 11072 transitions. [2020-10-15 04:38:25,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:38:25,509 INFO L276 IsEmpty]: Start isEmpty. Operand 6614 states and 11072 transitions. [2020-10-15 04:38:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-15 04:38:25,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:38:25,524 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-15 04:38:25,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 04:38:25,525 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:38:25,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:38:25,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1080621368, now seen corresponding path program 1 times [2020-10-15 04:38:25,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:38:25,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629616163] [2020-10-15 04:38:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:38:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:25,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:25,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:25,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:27,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:30,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:30,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-15 04:38:30,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:38:30,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4620 [2020-10-15 04:38:30,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:30,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:30,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:38:30,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-15 04:38:30,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 04:38:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:30,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:38:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:30,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:30,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:30,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:38:30,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:38:30,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:38:30,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:30,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:30,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:38:30,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:38:30,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:38:30,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-15 04:38:30,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629616163] [2020-10-15 04:38:30,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:38:30,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:38:30,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072551000] [2020-10-15 04:38:30,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:38:30,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:38:30,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:38:30,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:38:30,344 INFO L87 Difference]: Start difference. First operand 6614 states and 11072 transitions. Second operand 5 states. [2020-10-15 04:38:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:38:31,493 INFO L93 Difference]: Finished difference Result 13601 states and 22207 transitions. [2020-10-15 04:38:31,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:38:31,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-10-15 04:38:31,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:38:31,517 INFO L225 Difference]: With dead ends: 13601 [2020-10-15 04:38:31,517 INFO L226 Difference]: Without dead ends: 8096 [2020-10-15 04:38:31,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:38:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2020-10-15 04:38:31,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 6643. [2020-10-15 04:38:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6643 states. [2020-10-15 04:38:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6643 states to 6643 states and 11101 transitions. [2020-10-15 04:38:31,719 INFO L78 Accepts]: Start accepts. Automaton has 6643 states and 11101 transitions. Word has length 177 [2020-10-15 04:38:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:38:31,720 INFO L479 AbstractCegarLoop]: Abstraction has 6643 states and 11101 transitions. [2020-10-15 04:38:31,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:38:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6643 states and 11101 transitions. [2020-10-15 04:38:31,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-15 04:38:31,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:38:31,741 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:38:31,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 04:38:31,742 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:38:31,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:38:31,742 INFO L82 PathProgramCache]: Analyzing trace with hash -247227359, now seen corresponding path program 1 times [2020-10-15 04:38:31,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:38:31,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475363093] [2020-10-15 04:38:31,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:38:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:31,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:31,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:31,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:31,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:32,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:36,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:36,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-15 04:38:36,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:38:36,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 04:38:36,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:36,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:38:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-15 04:38:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 04:38:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:36,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:38:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:36,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:36,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:36,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:38:36,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:38:36,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:38:36,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:36,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:38:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:38:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:38:36,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-15 04:38:36,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475363093] [2020-10-15 04:38:36,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:38:36,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:38:36,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092305095] [2020-10-15 04:38:36,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:38:36,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:38:36,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:38:36,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:38:36,874 INFO L87 Difference]: Start difference. First operand 6643 states and 11101 transitions. Second operand 5 states. [2020-10-15 04:38:37,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:38:37,957 INFO L93 Difference]: Finished difference Result 9367 states and 15496 transitions. [2020-10-15 04:38:37,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:38:37,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2020-10-15 04:38:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:38:37,977 INFO L225 Difference]: With dead ends: 9367 [2020-10-15 04:38:37,977 INFO L226 Difference]: Without dead ends: 7453 [2020-10-15 04:38:37,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:38:37,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7453 states. [2020-10-15 04:38:38,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7453 to 6795. [2020-10-15 04:38:38,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6795 states. [2020-10-15 04:38:38,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6795 states to 6795 states and 11357 transitions. [2020-10-15 04:38:38,156 INFO L78 Accepts]: Start accepts. Automaton has 6795 states and 11357 transitions. Word has length 184 [2020-10-15 04:38:38,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:38:38,156 INFO L479 AbstractCegarLoop]: Abstraction has 6795 states and 11357 transitions. [2020-10-15 04:38:38,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:38:38,157 INFO L276 IsEmpty]: Start isEmpty. Operand 6795 states and 11357 transitions. [2020-10-15 04:38:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-15 04:38:38,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:38:38,170 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:38:38,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 04:38:38,171 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:38:38,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:38:38,171 INFO L82 PathProgramCache]: Analyzing trace with hash -2094248743, now seen corresponding path program 2 times [2020-10-15 04:38:38,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:38:38,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997893612] [2020-10-15 04:38:38,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:38:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:38,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:38,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:38,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:39,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:39,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:43,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:43,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-15 04:38:43,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:38:43,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 04:38:43,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:43,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:38:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 04:38:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 04:38:43,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:43,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:38:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:43,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:43,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:43,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:38:43,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:38:43,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:38:43,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:43,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:43,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:38:43,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:38:43,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:38:43,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-10-15 04:38:43,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997893612] [2020-10-15 04:38:43,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:38:43,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:38:43,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576927357] [2020-10-15 04:38:43,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:38:43,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:38:43,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:38:43,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:38:43,327 INFO L87 Difference]: Start difference. First operand 6795 states and 11357 transitions. Second operand 5 states. [2020-10-15 04:38:44,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:38:44,176 INFO L93 Difference]: Finished difference Result 20238 states and 33796 transitions. [2020-10-15 04:38:44,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:38:44,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2020-10-15 04:38:44,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:38:44,212 INFO L225 Difference]: With dead ends: 20238 [2020-10-15 04:38:44,213 INFO L226 Difference]: Without dead ends: 13457 [2020-10-15 04:38:44,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:38:44,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13457 states. [2020-10-15 04:38:44,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13457 to 13455. [2020-10-15 04:38:44,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13455 states. [2020-10-15 04:38:44,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13455 states to 13455 states and 22323 transitions. [2020-10-15 04:38:44,704 INFO L78 Accepts]: Start accepts. Automaton has 13455 states and 22323 transitions. Word has length 184 [2020-10-15 04:38:44,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:38:44,704 INFO L479 AbstractCegarLoop]: Abstraction has 13455 states and 22323 transitions. [2020-10-15 04:38:44,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:38:44,704 INFO L276 IsEmpty]: Start isEmpty. Operand 13455 states and 22323 transitions. [2020-10-15 04:38:44,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-15 04:38:44,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:38:44,726 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:38:44,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 04:38:44,726 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:38:44,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:38:44,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1814856151, now seen corresponding path program 1 times [2020-10-15 04:38:44,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:38:44,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657972241] [2020-10-15 04:38:44,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:38:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:44,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:44,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:45,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:45,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:49,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:49,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-15 04:38:49,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:38:49,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 04:38:49,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:49,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:49,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:38:49,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-15 04:38:49,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 04:38:49,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:49,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:38:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:49,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:49,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:49,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:38:49,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:38:49,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:38:49,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:49,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:38:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:38:49,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:38:49,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-15 04:38:49,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657972241] [2020-10-15 04:38:49,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:38:49,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:38:49,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480495315] [2020-10-15 04:38:49,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:38:49,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:38:49,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:38:49,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:38:49,835 INFO L87 Difference]: Start difference. First operand 13455 states and 22323 transitions. Second operand 5 states. [2020-10-15 04:38:51,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:38:51,107 INFO L93 Difference]: Finished difference Result 18859 states and 30959 transitions. [2020-10-15 04:38:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:38:51,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2020-10-15 04:38:51,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:38:51,137 INFO L225 Difference]: With dead ends: 18859 [2020-10-15 04:38:51,137 INFO L226 Difference]: Without dead ends: 14769 [2020-10-15 04:38:51,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:38:51,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14769 states. [2020-10-15 04:38:51,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14769 to 13503. [2020-10-15 04:38:51,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13503 states. [2020-10-15 04:38:51,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 22403 transitions. [2020-10-15 04:38:51,691 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 22403 transitions. Word has length 184 [2020-10-15 04:38:51,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:38:51,691 INFO L479 AbstractCegarLoop]: Abstraction has 13503 states and 22403 transitions. [2020-10-15 04:38:51,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:38:51,692 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 22403 transitions. [2020-10-15 04:38:51,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-15 04:38:51,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:38:51,710 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:38:51,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 04:38:51,711 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:38:51,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:38:51,711 INFO L82 PathProgramCache]: Analyzing trace with hash -973535081, now seen corresponding path program 2 times [2020-10-15 04:38:51,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:38:51,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400048807] [2020-10-15 04:38:51,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:38:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:51,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:51,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:51,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:56,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:56,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-15 04:38:56,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:38:56,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-15 04:38:56,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:56,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:56,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:38:56,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-15 04:38:56,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 04:38:56,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:56,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:38:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:56,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:56,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:38:56,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:38:56,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:38:56,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:38:56,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:38:56,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:38:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:38:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:38:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:38:56,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:38:56,864 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-15 04:38:56,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400048807] [2020-10-15 04:38:56,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:38:56,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:38:56,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160112370] [2020-10-15 04:38:56,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:38:56,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:38:56,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:38:56,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:38:56,867 INFO L87 Difference]: Start difference. First operand 13503 states and 22403 transitions. Second operand 5 states. [2020-10-15 04:38:57,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:38:57,936 INFO L93 Difference]: Finished difference Result 18907 states and 31023 transitions. [2020-10-15 04:38:57,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:38:57,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2020-10-15 04:38:57,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:38:57,967 INFO L225 Difference]: With dead ends: 18907 [2020-10-15 04:38:57,967 INFO L226 Difference]: Without dead ends: 14769 [2020-10-15 04:38:57,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:38:57,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14769 states. [2020-10-15 04:38:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14769 to 13807. [2020-10-15 04:38:58,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13807 states. [2020-10-15 04:38:58,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13807 states to 13807 states and 22979 transitions. [2020-10-15 04:38:58,343 INFO L78 Accepts]: Start accepts. Automaton has 13807 states and 22979 transitions. Word has length 184 [2020-10-15 04:38:58,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:38:58,343 INFO L479 AbstractCegarLoop]: Abstraction has 13807 states and 22979 transitions. [2020-10-15 04:38:58,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:38:58,344 INFO L276 IsEmpty]: Start isEmpty. Operand 13807 states and 22979 transitions. [2020-10-15 04:38:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-15 04:38:58,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:38:58,363 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:38:58,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 04:38:58,363 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:38:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:38:58,363 INFO L82 PathProgramCache]: Analyzing trace with hash -2127446045, now seen corresponding path program 3 times [2020-10-15 04:38:58,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:38:58,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509444428] [2020-10-15 04:38:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:38:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:38:58,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:58,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:58,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:38:58,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:03,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:03,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-15 04:39:03,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:39:03,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-15 04:39:03,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:03,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:03,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:39:03,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-15 04:39:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 04:39:03,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:39:03,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:39:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:03,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:03,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:03,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:39:03,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:39:03,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:39:03,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:03,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:39:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:39:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:39:03,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:39:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-15 04:39:03,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509444428] [2020-10-15 04:39:03,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:39:03,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:39:03,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711396566] [2020-10-15 04:39:03,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:39:03,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:39:03,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:39:03,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:39:03,579 INFO L87 Difference]: Start difference. First operand 13807 states and 22979 transitions. Second operand 5 states. [2020-10-15 04:39:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:39:04,710 INFO L93 Difference]: Finished difference Result 19211 states and 31583 transitions. [2020-10-15 04:39:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:39:04,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2020-10-15 04:39:04,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:39:04,737 INFO L225 Difference]: With dead ends: 19211 [2020-10-15 04:39:04,737 INFO L226 Difference]: Without dead ends: 14769 [2020-10-15 04:39:04,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:39:04,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14769 states. [2020-10-15 04:39:05,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14769 to 13839. [2020-10-15 04:39:05,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13839 states. [2020-10-15 04:39:05,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13839 states to 13839 states and 23027 transitions. [2020-10-15 04:39:05,257 INFO L78 Accepts]: Start accepts. Automaton has 13839 states and 23027 transitions. Word has length 184 [2020-10-15 04:39:05,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:39:05,258 INFO L479 AbstractCegarLoop]: Abstraction has 13839 states and 23027 transitions. [2020-10-15 04:39:05,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:39:05,258 INFO L276 IsEmpty]: Start isEmpty. Operand 13839 states and 23027 transitions. [2020-10-15 04:39:05,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-15 04:39:05,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:39:05,270 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:39:05,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 04:39:05,271 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:39:05,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:39:05,271 INFO L82 PathProgramCache]: Analyzing trace with hash 896959113, now seen corresponding path program 1 times [2020-10-15 04:39:05,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:39:05,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426167237] [2020-10-15 04:39:05,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:39:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:05,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:05,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:05,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:05,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:09,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:09,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-15 04:39:09,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:39:09,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4082 [2020-10-15 04:39:09,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:09,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:09,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:39:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-15 04:39:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 04:39:09,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:09,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:39:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:09,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:09,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:09,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:39:09,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:39:09,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:39:09,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:09,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:39:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:39:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:39:09,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:09,446 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-15 04:39:09,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426167237] [2020-10-15 04:39:09,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:39:09,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:39:09,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577344446] [2020-10-15 04:39:09,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:39:09,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:39:09,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:39:09,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:39:09,448 INFO L87 Difference]: Start difference. First operand 13839 states and 23027 transitions. Second operand 5 states. [2020-10-15 04:39:10,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:39:10,562 INFO L93 Difference]: Finished difference Result 19243 states and 31615 transitions. [2020-10-15 04:39:10,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:39:10,563 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 185 [2020-10-15 04:39:10,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:39:10,579 INFO L225 Difference]: With dead ends: 19243 [2020-10-15 04:39:10,579 INFO L226 Difference]: Without dead ends: 14769 [2020-10-15 04:39:10,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:39:10,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14769 states. [2020-10-15 04:39:10,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14769 to 13839. [2020-10-15 04:39:10,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13839 states. [2020-10-15 04:39:11,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13839 states to 13839 states and 23011 transitions. [2020-10-15 04:39:11,005 INFO L78 Accepts]: Start accepts. Automaton has 13839 states and 23011 transitions. Word has length 185 [2020-10-15 04:39:11,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:39:11,005 INFO L479 AbstractCegarLoop]: Abstraction has 13839 states and 23011 transitions. [2020-10-15 04:39:11,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:39:11,006 INFO L276 IsEmpty]: Start isEmpty. Operand 13839 states and 23011 transitions. [2020-10-15 04:39:11,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-15 04:39:11,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:39:11,017 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:39:11,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 04:39:11,017 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:39:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:39:11,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1354527412, now seen corresponding path program 1 times [2020-10-15 04:39:11,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:39:11,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422900939] [2020-10-15 04:39:11,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:39:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:11,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:11,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:11,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:13,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:16,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:16,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-15 04:39:16,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:39:16,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-15 04:39:16,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:16,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:16,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 04:39:16,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:39:16,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-15 04:39:16,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:16,432 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-15 04:39:16,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:39:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:16,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:16,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:16,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:39:16,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:39:16,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:39:16,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:16,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:39:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:39:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:39:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 14 proven. 198 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-15 04:39:16,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422900939] [2020-10-15 04:39:16,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:39:16,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 04:39:16,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951347557] [2020-10-15 04:39:16,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 04:39:16,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:39:16,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 04:39:16,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-15 04:39:16,725 INFO L87 Difference]: Start difference. First operand 13839 states and 23011 transitions. Second operand 12 states. [2020-10-15 04:39:19,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:39:19,559 INFO L93 Difference]: Finished difference Result 31842 states and 52159 transitions. [2020-10-15 04:39:19,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 04:39:19,560 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 185 [2020-10-15 04:39:19,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:39:19,586 INFO L225 Difference]: With dead ends: 31842 [2020-10-15 04:39:19,586 INFO L226 Difference]: Without dead ends: 23768 [2020-10-15 04:39:19,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-10-15 04:39:19,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23768 states. [2020-10-15 04:39:19,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23768 to 4477. [2020-10-15 04:39:19,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4477 states. [2020-10-15 04:39:19,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 7405 transitions. [2020-10-15 04:39:19,835 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 7405 transitions. Word has length 185 [2020-10-15 04:39:19,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:39:19,835 INFO L479 AbstractCegarLoop]: Abstraction has 4477 states and 7405 transitions. [2020-10-15 04:39:19,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 04:39:19,835 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 7405 transitions. [2020-10-15 04:39:19,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-15 04:39:19,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:39:19,839 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:39:19,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 04:39:19,840 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:39:19,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:39:19,840 INFO L82 PathProgramCache]: Analyzing trace with hash -521945879, now seen corresponding path program 1 times [2020-10-15 04:39:19,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:39:19,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037198857] [2020-10-15 04:39:19,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:39:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:19,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:19,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:20,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:21,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:24,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:24,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-15 04:39:24,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:39:24,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-15 04:39:24,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:24,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:24,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:39:24,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-15 04:39:24,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 04:39:24,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:24,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:39:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:24,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:24,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:24,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:39:24,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:39:24,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:39:24,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:24,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:24,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:39:24,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:39:24,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:39:24,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:39:24,995 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-15 04:39:24,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037198857] [2020-10-15 04:39:24,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:39:24,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:39:24,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982820812] [2020-10-15 04:39:24,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:39:24,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:39:24,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:39:24,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:39:24,997 INFO L87 Difference]: Start difference. First operand 4477 states and 7405 transitions. Second operand 5 states. [2020-10-15 04:39:26,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:39:26,141 INFO L93 Difference]: Finished difference Result 9799 states and 15878 transitions. [2020-10-15 04:39:26,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:39:26,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 185 [2020-10-15 04:39:26,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:39:26,149 INFO L225 Difference]: With dead ends: 9799 [2020-10-15 04:39:26,150 INFO L226 Difference]: Without dead ends: 5341 [2020-10-15 04:39:26,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:39:26,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5341 states. [2020-10-15 04:39:26,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5341 to 4477. [2020-10-15 04:39:26,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4477 states. [2020-10-15 04:39:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 7389 transitions. [2020-10-15 04:39:26,300 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 7389 transitions. Word has length 185 [2020-10-15 04:39:26,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:39:26,300 INFO L479 AbstractCegarLoop]: Abstraction has 4477 states and 7389 transitions. [2020-10-15 04:39:26,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:39:26,300 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 7389 transitions. [2020-10-15 04:39:26,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-15 04:39:26,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:39:26,306 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-15 04:39:26,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 04:39:26,306 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:39:26,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:39:26,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1239637277, now seen corresponding path program 1 times [2020-10-15 04:39:26,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:39:26,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770410266] [2020-10-15 04:39:26,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:39:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:26,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:26,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:27,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:27,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-15 04:39:27,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:39:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1094 [2020-10-15 04:39:27,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:27,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:39:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-15 04:39:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 04:39:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:27,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:39:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:27,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:27,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:27,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:39:27,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:39:27,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:39:27,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:27,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:27,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:39:27,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:39:27,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:39:27,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2020-10-15 04:39:27,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770410266] [2020-10-15 04:39:27,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:39:27,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:39:27,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80718291] [2020-10-15 04:39:27,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:39:27,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:39:27,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:39:27,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:39:27,543 INFO L87 Difference]: Start difference. First operand 4477 states and 7389 transitions. Second operand 5 states. [2020-10-15 04:39:28,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:39:28,672 INFO L93 Difference]: Finished difference Result 10495 states and 17118 transitions. [2020-10-15 04:39:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:39:28,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 185 [2020-10-15 04:39:28,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:39:28,682 INFO L225 Difference]: With dead ends: 10495 [2020-10-15 04:39:28,682 INFO L226 Difference]: Without dead ends: 6037 [2020-10-15 04:39:28,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:39:28,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2020-10-15 04:39:28,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 5125. [2020-10-15 04:39:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5125 states. [2020-10-15 04:39:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 8549 transitions. [2020-10-15 04:39:28,833 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 8549 transitions. Word has length 185 [2020-10-15 04:39:28,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:39:28,834 INFO L479 AbstractCegarLoop]: Abstraction has 5125 states and 8549 transitions. [2020-10-15 04:39:28,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:39:28,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 8549 transitions. [2020-10-15 04:39:28,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-15 04:39:28,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:39:28,839 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:39:28,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 04:39:28,839 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:39:28,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:39:28,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1142958466, now seen corresponding path program 1 times [2020-10-15 04:39:28,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:39:28,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406918251] [2020-10-15 04:39:28,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:39:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:28,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:28,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:29,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:31,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:33,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:33,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 04:39:33,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:39:33,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 04:39:33,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:33,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:33,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 04:39:33,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:39:33,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-15 04:39:33,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:34,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:39:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:34,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:34,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:34,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:39:34,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:39:34,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:39:34,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:34,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:34,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:39:34,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:39:34,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:39:34,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:34,862 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 45 proven. 144 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-15 04:39:34,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406918251] [2020-10-15 04:39:34,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:39:34,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 04:39:34,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007950817] [2020-10-15 04:39:34,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 04:39:34,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:39:34,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 04:39:34,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 04:39:34,864 INFO L87 Difference]: Start difference. First operand 5125 states and 8549 transitions. Second operand 10 states. [2020-10-15 04:39:37,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:39:37,126 INFO L93 Difference]: Finished difference Result 12317 states and 20379 transitions. [2020-10-15 04:39:37,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 04:39:37,126 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 186 [2020-10-15 04:39:37,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:39:37,135 INFO L225 Difference]: With dead ends: 12317 [2020-10-15 04:39:37,135 INFO L226 Difference]: Without dead ends: 7211 [2020-10-15 04:39:37,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 10 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-15 04:39:37,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7211 states. [2020-10-15 04:39:37,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7211 to 5421. [2020-10-15 04:39:37,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5421 states. [2020-10-15 04:39:37,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5421 states to 5421 states and 9037 transitions. [2020-10-15 04:39:37,320 INFO L78 Accepts]: Start accepts. Automaton has 5421 states and 9037 transitions. Word has length 186 [2020-10-15 04:39:37,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:39:37,321 INFO L479 AbstractCegarLoop]: Abstraction has 5421 states and 9037 transitions. [2020-10-15 04:39:37,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 04:39:37,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5421 states and 9037 transitions. [2020-10-15 04:39:37,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-15 04:39:37,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:39:37,326 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:39:37,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 04:39:37,326 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:39:37,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:39:37,326 INFO L82 PathProgramCache]: Analyzing trace with hash 630078010, now seen corresponding path program 1 times [2020-10-15 04:39:37,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:39:37,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101843579] [2020-10-15 04:39:37,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:39:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:37,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:37,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:38,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:39,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:39,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-15 04:39:39,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:39:39,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1862 [2020-10-15 04:39:39,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:39,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:39,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:39:39,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-15 04:39:39,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 04:39:39,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:39,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:39:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:39,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:39,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:39,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:39:39,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:39:39,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:39:39,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:39,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:39,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:39:39,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:39:39,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:39:39,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:39,308 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-10-15 04:39:39,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101843579] [2020-10-15 04:39:39,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:39:39,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:39:39,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679324638] [2020-10-15 04:39:39,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:39:39,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:39:39,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:39:39,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:39:39,310 INFO L87 Difference]: Start difference. First operand 5421 states and 9037 transitions. Second operand 5 states. [2020-10-15 04:39:40,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:39:40,537 INFO L93 Difference]: Finished difference Result 12367 states and 20398 transitions. [2020-10-15 04:39:40,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:39:40,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 188 [2020-10-15 04:39:40,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:39:40,549 INFO L225 Difference]: With dead ends: 12367 [2020-10-15 04:39:40,549 INFO L226 Difference]: Without dead ends: 6965 [2020-10-15 04:39:40,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:39:40,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2020-10-15 04:39:40,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 5421. [2020-10-15 04:39:40,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5421 states. [2020-10-15 04:39:40,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5421 states to 5421 states and 9037 transitions. [2020-10-15 04:39:40,806 INFO L78 Accepts]: Start accepts. Automaton has 5421 states and 9037 transitions. Word has length 188 [2020-10-15 04:39:40,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:39:40,807 INFO L479 AbstractCegarLoop]: Abstraction has 5421 states and 9037 transitions. [2020-10-15 04:39:40,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:39:40,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5421 states and 9037 transitions. [2020-10-15 04:39:40,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-15 04:39:40,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:39:40,813 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 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] [2020-10-15 04:39:40,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-15 04:39:40,813 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:39:40,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:39:40,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1950244848, now seen corresponding path program 1 times [2020-10-15 04:39:40,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:39:40,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066593900] [2020-10-15 04:39:40,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:39:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:40,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:40,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:40,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:42,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:45,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:45,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-15 04:39:45,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:39:45,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-15 04:39:45,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:45,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:39:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-15 04:39:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 04:39:45,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:45,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:39:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:45,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:45,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:45,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:39:45,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:39:45,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:39:45,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:45,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:39:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:39:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:39:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-10-15 04:39:45,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066593900] [2020-10-15 04:39:45,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:39:45,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:39:45,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084770854] [2020-10-15 04:39:45,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:39:45,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:39:45,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:39:45,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:39:45,940 INFO L87 Difference]: Start difference. First operand 5421 states and 9037 transitions. Second operand 5 states. [2020-10-15 04:39:47,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:39:47,135 INFO L93 Difference]: Finished difference Result 12367 states and 20382 transitions. [2020-10-15 04:39:47,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:39:47,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 190 [2020-10-15 04:39:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:39:47,144 INFO L225 Difference]: With dead ends: 12367 [2020-10-15 04:39:47,144 INFO L226 Difference]: Without dead ends: 6965 [2020-10-15 04:39:47,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:39:47,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2020-10-15 04:39:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6069. [2020-10-15 04:39:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6069 states. [2020-10-15 04:39:47,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 10197 transitions. [2020-10-15 04:39:47,317 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 10197 transitions. Word has length 190 [2020-10-15 04:39:47,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:39:47,317 INFO L479 AbstractCegarLoop]: Abstraction has 6069 states and 10197 transitions. [2020-10-15 04:39:47,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:39:47,317 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 10197 transitions. [2020-10-15 04:39:47,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-15 04:39:47,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:39:47,324 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 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] [2020-10-15 04:39:47,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 04:39:47,324 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:39:47,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:39:47,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1038443518, now seen corresponding path program 1 times [2020-10-15 04:39:47,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:39:47,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445564689] [2020-10-15 04:39:47,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:39:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:47,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:47,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:47,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:47,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:47,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:52,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:52,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-15 04:39:52,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:39:52,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 04:39:52,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:52,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:52,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:39:52,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-15 04:39:52,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 04:39:52,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:52,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:39:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:52,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:52,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:52,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:39:52,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:39:52,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:39:52,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:52,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:52,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:39:52,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:39:52,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:39:52,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-15 04:39:52,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445564689] [2020-10-15 04:39:52,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:39:52,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:39:52,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931334533] [2020-10-15 04:39:52,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:39:52,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:39:52,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:39:52,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:39:52,464 INFO L87 Difference]: Start difference. First operand 6069 states and 10197 transitions. Second operand 5 states. [2020-10-15 04:39:53,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:39:53,602 INFO L93 Difference]: Finished difference Result 12967 states and 21446 transitions. [2020-10-15 04:39:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:39:53,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2020-10-15 04:39:53,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:39:53,611 INFO L225 Difference]: With dead ends: 12967 [2020-10-15 04:39:53,611 INFO L226 Difference]: Without dead ends: 6917 [2020-10-15 04:39:53,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:39:53,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6917 states. [2020-10-15 04:39:53,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6917 to 6069. [2020-10-15 04:39:53,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6069 states. [2020-10-15 04:39:53,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 10181 transitions. [2020-10-15 04:39:53,789 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 10181 transitions. Word has length 191 [2020-10-15 04:39:53,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:39:53,789 INFO L479 AbstractCegarLoop]: Abstraction has 6069 states and 10181 transitions. [2020-10-15 04:39:53,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:39:53,789 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 10181 transitions. [2020-10-15 04:39:53,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-15 04:39:53,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:39:53,795 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 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] [2020-10-15 04:39:53,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 04:39:53,795 INFO L427 AbstractCegarLoop]: === Iteration 25 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:39:53,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:39:53,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1020867506, now seen corresponding path program 1 times [2020-10-15 04:39:53,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:39:53,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921305993] [2020-10-15 04:39:53,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:39:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:53,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:53,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:53,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:55,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:58,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:58,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-15 04:39:58,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:39:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 04:39:58,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:58,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:39:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-15 04:39:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 04:39:58,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:58,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:39:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:39:58,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:39:58,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:39:58,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:39:58,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:39:58,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:39:58,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:39:58,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:39:58,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:39:58,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:39:58,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:39:58,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:39:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-10-15 04:39:58,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921305993] [2020-10-15 04:39:58,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:39:58,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:39:58,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627813275] [2020-10-15 04:39:58,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:39:58,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:39:58,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:39:58,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:39:58,923 INFO L87 Difference]: Start difference. First operand 6069 states and 10181 transitions. Second operand 5 states. [2020-10-15 04:40:00,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:00,107 INFO L93 Difference]: Finished difference Result 12999 states and 21478 transitions. [2020-10-15 04:40:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:40:00,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2020-10-15 04:40:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:00,116 INFO L225 Difference]: With dead ends: 12999 [2020-10-15 04:40:00,116 INFO L226 Difference]: Without dead ends: 6949 [2020-10-15 04:40:00,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:40:00,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2020-10-15 04:40:00,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 6053. [2020-10-15 04:40:00,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6053 states. [2020-10-15 04:40:00,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6053 states to 6053 states and 10165 transitions. [2020-10-15 04:40:00,290 INFO L78 Accepts]: Start accepts. Automaton has 6053 states and 10165 transitions. Word has length 191 [2020-10-15 04:40:00,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:00,290 INFO L479 AbstractCegarLoop]: Abstraction has 6053 states and 10165 transitions. [2020-10-15 04:40:00,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:40:00,290 INFO L276 IsEmpty]: Start isEmpty. Operand 6053 states and 10165 transitions. [2020-10-15 04:40:00,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-15 04:40:00,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:00,295 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:40:00,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 04:40:00,296 INFO L427 AbstractCegarLoop]: === Iteration 26 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:00,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:00,296 INFO L82 PathProgramCache]: Analyzing trace with hash -453391035, now seen corresponding path program 1 times [2020-10-15 04:40:00,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:00,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14303324] [2020-10-15 04:40:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:00,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:00,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:00,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:00,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:03,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:05,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:05,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-15 04:40:05,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:40:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 04:40:05,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:05,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:40:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-15 04:40:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 04:40:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:05,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:40:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:05,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:05,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:05,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:40:05,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:40:05,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 04:40:05,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:05,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:40:05,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:40:05,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:40:05,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 04:40:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2020-10-15 04:40:05,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14303324] [2020-10-15 04:40:05,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:40:05,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:40:05,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518122432] [2020-10-15 04:40:05,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:40:05,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:40:05,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:40:05,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:40:05,513 INFO L87 Difference]: Start difference. First operand 6053 states and 10165 transitions. Second operand 5 states. [2020-10-15 04:40:06,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:06,724 INFO L93 Difference]: Finished difference Result 12999 states and 21494 transitions. [2020-10-15 04:40:06,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:40:06,725 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 193 [2020-10-15 04:40:06,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:06,732 INFO L225 Difference]: With dead ends: 12999 [2020-10-15 04:40:06,733 INFO L226 Difference]: Without dead ends: 6965 [2020-10-15 04:40:06,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:40:06,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2020-10-15 04:40:06,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6069. [2020-10-15 04:40:06,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6069 states. [2020-10-15 04:40:06,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 10181 transitions. [2020-10-15 04:40:06,905 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 10181 transitions. Word has length 193 [2020-10-15 04:40:06,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:06,905 INFO L479 AbstractCegarLoop]: Abstraction has 6069 states and 10181 transitions. [2020-10-15 04:40:06,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:40:06,906 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 10181 transitions. [2020-10-15 04:40:06,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-15 04:40:06,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:06,913 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:40:06,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-15 04:40:06,913 INFO L427 AbstractCegarLoop]: === Iteration 27 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:06,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:06,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1319511028, now seen corresponding path program 1 times [2020-10-15 04:40:06,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:06,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606868242] [2020-10-15 04:40:06,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:06,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:07,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:08,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:08,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-15 04:40:08,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:40:08,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1541 [2020-10-15 04:40:08,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:08,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 04:40:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-15 04:40:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 04:40:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:08,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:40:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:08,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:08,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:08,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:40:08,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:40:08,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:40:08,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:08,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:40:08,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:40:08,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:40:08,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:08,623 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-10-15 04:40:08,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606868242] [2020-10-15 04:40:08,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:40:08,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:40:08,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187940596] [2020-10-15 04:40:08,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:40:08,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:40:08,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:40:08,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:40:08,626 INFO L87 Difference]: Start difference. First operand 6069 states and 10181 transitions. Second operand 5 states. [2020-10-15 04:40:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:10,439 INFO L93 Difference]: Finished difference Result 13679 states and 22702 transitions. [2020-10-15 04:40:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:40:10,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 193 [2020-10-15 04:40:10,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:10,448 INFO L225 Difference]: With dead ends: 13679 [2020-10-15 04:40:10,448 INFO L226 Difference]: Without dead ends: 7629 [2020-10-15 04:40:10,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:40:10,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7629 states. [2020-10-15 04:40:10,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7629 to 6717. [2020-10-15 04:40:10,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6717 states. [2020-10-15 04:40:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 11341 transitions. [2020-10-15 04:40:10,630 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 11341 transitions. Word has length 193 [2020-10-15 04:40:10,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:10,630 INFO L479 AbstractCegarLoop]: Abstraction has 6717 states and 11341 transitions. [2020-10-15 04:40:10,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:40:10,630 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 11341 transitions. [2020-10-15 04:40:10,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-15 04:40:10,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:10,636 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:40:10,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-15 04:40:10,636 INFO L427 AbstractCegarLoop]: === Iteration 28 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:10,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:10,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1603648970, now seen corresponding path program 1 times [2020-10-15 04:40:10,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:10,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382984377] [2020-10-15 04:40:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:10,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:10,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:10,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:12,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:14,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:14,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-15 04:40:14,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:40:14,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3663 [2020-10-15 04:40:14,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:14,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 04:40:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-15 04:40:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 04:40:14,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:14,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:40:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:14,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:14,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:14,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:40:14,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:40:14,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:40:14,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:14,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:40:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:40:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:40:14,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-10-15 04:40:14,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382984377] [2020-10-15 04:40:14,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:40:14,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:40:14,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164669439] [2020-10-15 04:40:14,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:40:14,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:40:14,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:40:14,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:40:14,428 INFO L87 Difference]: Start difference. First operand 6717 states and 11341 transitions. Second operand 5 states. [2020-10-15 04:40:15,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:15,752 INFO L93 Difference]: Finished difference Result 14959 states and 25006 transitions. [2020-10-15 04:40:15,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:40:15,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 193 [2020-10-15 04:40:15,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:15,761 INFO L225 Difference]: With dead ends: 14959 [2020-10-15 04:40:15,761 INFO L226 Difference]: Without dead ends: 8261 [2020-10-15 04:40:15,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:40:15,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8261 states. [2020-10-15 04:40:15,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8261 to 6701. [2020-10-15 04:40:15,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6701 states. [2020-10-15 04:40:15,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 11325 transitions. [2020-10-15 04:40:15,950 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 11325 transitions. Word has length 193 [2020-10-15 04:40:15,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:15,951 INFO L479 AbstractCegarLoop]: Abstraction has 6701 states and 11325 transitions. [2020-10-15 04:40:15,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:40:15,951 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 11325 transitions. [2020-10-15 04:40:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-15 04:40:15,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:15,956 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-15 04:40:15,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-15 04:40:15,957 INFO L427 AbstractCegarLoop]: === Iteration 29 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:15,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:15,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1615720640, now seen corresponding path program 1 times [2020-10-15 04:40:15,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:15,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994062629] [2020-10-15 04:40:15,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:16,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:16,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:16,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:17,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:17,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-15 04:40:17,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:40:17,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1715 [2020-10-15 04:40:17,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:17,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:17,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:40:17,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-10-15 04:40:17,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 04:40:17,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:17,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:40:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:17,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:17,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:17,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:40:17,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:40:17,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:40:17,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:17,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:40:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:40:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:40:17,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-10-15 04:40:17,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994062629] [2020-10-15 04:40:17,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:40:17,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:40:17,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618711149] [2020-10-15 04:40:17,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:40:17,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:40:17,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:40:17,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:40:17,792 INFO L87 Difference]: Start difference. First operand 6701 states and 11325 transitions. Second operand 5 states. [2020-10-15 04:40:19,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:19,045 INFO L93 Difference]: Finished difference Result 14927 states and 24974 transitions. [2020-10-15 04:40:19,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:40:19,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 193 [2020-10-15 04:40:19,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:19,054 INFO L225 Difference]: With dead ends: 14927 [2020-10-15 04:40:19,054 INFO L226 Difference]: Without dead ends: 8245 [2020-10-15 04:40:19,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:40:19,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2020-10-15 04:40:19,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 6701. [2020-10-15 04:40:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6701 states. [2020-10-15 04:40:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 11325 transitions. [2020-10-15 04:40:19,253 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 11325 transitions. Word has length 193 [2020-10-15 04:40:19,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:19,253 INFO L479 AbstractCegarLoop]: Abstraction has 6701 states and 11325 transitions. [2020-10-15 04:40:19,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:40:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 11325 transitions. [2020-10-15 04:40:19,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-15 04:40:19,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:19,262 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:40:19,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 04:40:19,262 INFO L427 AbstractCegarLoop]: === Iteration 30 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:19,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:19,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1775831449, now seen corresponding path program 1 times [2020-10-15 04:40:19,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:19,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919301255] [2020-10-15 04:40:19,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:19,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:19,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:19,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:19,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:22,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:24,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:24,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-15 04:40:24,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:40:24,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-15 04:40:24,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:24,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:40:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-15 04:40:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 04:40:24,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:24,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:40:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:24,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:24,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:24,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:40:24,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:40:24,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:40:24,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:24,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:24,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:40:24,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:40:24,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:40:24,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:24,397 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2020-10-15 04:40:24,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919301255] [2020-10-15 04:40:24,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:40:24,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:40:24,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453889174] [2020-10-15 04:40:24,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:40:24,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:40:24,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:40:24,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:40:24,399 INFO L87 Difference]: Start difference. First operand 6701 states and 11325 transitions. Second operand 5 states. [2020-10-15 04:40:25,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:25,606 INFO L93 Difference]: Finished difference Result 14263 states and 23766 transitions. [2020-10-15 04:40:25,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:40:25,607 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2020-10-15 04:40:25,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:25,615 INFO L225 Difference]: With dead ends: 14263 [2020-10-15 04:40:25,616 INFO L226 Difference]: Without dead ends: 7581 [2020-10-15 04:40:25,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:40:25,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7581 states. [2020-10-15 04:40:25,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7581 to 6053. [2020-10-15 04:40:25,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6053 states. [2020-10-15 04:40:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6053 states to 6053 states and 10165 transitions. [2020-10-15 04:40:25,871 INFO L78 Accepts]: Start accepts. Automaton has 6053 states and 10165 transitions. Word has length 194 [2020-10-15 04:40:25,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:25,871 INFO L479 AbstractCegarLoop]: Abstraction has 6053 states and 10165 transitions. [2020-10-15 04:40:25,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:40:25,871 INFO L276 IsEmpty]: Start isEmpty. Operand 6053 states and 10165 transitions. [2020-10-15 04:40:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-15 04:40:25,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:25,876 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-15 04:40:25,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-15 04:40:25,877 INFO L427 AbstractCegarLoop]: === Iteration 31 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:25,877 INFO L82 PathProgramCache]: Analyzing trace with hash 2089900789, now seen corresponding path program 1 times [2020-10-15 04:40:25,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:25,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863086719] [2020-10-15 04:40:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:25,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:25,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:26,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:27,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:27,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-15 04:40:27,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:40:27,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1785 [2020-10-15 04:40:27,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:27,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:40:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-10-15 04:40:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 04:40:27,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:27,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:40:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:27,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:27,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:27,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:40:27,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:40:27,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:40:27,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:27,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:27,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:40:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:40:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:40:27,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:27,791 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2020-10-15 04:40:27,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863086719] [2020-10-15 04:40:27,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:40:27,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:40:27,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146173323] [2020-10-15 04:40:27,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:40:27,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:40:27,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:40:27,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:40:27,793 INFO L87 Difference]: Start difference. First operand 6053 states and 10165 transitions. Second operand 5 states. [2020-10-15 04:40:29,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:29,049 INFO L93 Difference]: Finished difference Result 13631 states and 22654 transitions. [2020-10-15 04:40:29,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:40:29,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 196 [2020-10-15 04:40:29,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:29,057 INFO L225 Difference]: With dead ends: 13631 [2020-10-15 04:40:29,058 INFO L226 Difference]: Without dead ends: 7597 [2020-10-15 04:40:29,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:40:29,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7597 states. [2020-10-15 04:40:29,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7597 to 6053. [2020-10-15 04:40:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6053 states. [2020-10-15 04:40:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6053 states to 6053 states and 10165 transitions. [2020-10-15 04:40:29,243 INFO L78 Accepts]: Start accepts. Automaton has 6053 states and 10165 transitions. Word has length 196 [2020-10-15 04:40:29,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:29,243 INFO L479 AbstractCegarLoop]: Abstraction has 6053 states and 10165 transitions. [2020-10-15 04:40:29,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:40:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6053 states and 10165 transitions. [2020-10-15 04:40:29,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-15 04:40:29,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:29,249 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2020-10-15 04:40:29,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-15 04:40:29,249 INFO L427 AbstractCegarLoop]: === Iteration 32 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:29,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:29,250 INFO L82 PathProgramCache]: Analyzing trace with hash -2050314401, now seen corresponding path program 1 times [2020-10-15 04:40:29,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:29,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095090980] [2020-10-15 04:40:29,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:29,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:29,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:31,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:31,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-15 04:40:31,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:40:31,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2135 [2020-10-15 04:40:31,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:31,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:40:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-15 04:40:31,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 04:40:31,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:31,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:40:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:31,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:31,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:31,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:40:31,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:40:31,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 04:40:31,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:31,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:40:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:40:31,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:40:31,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-10-15 04:40:31,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095090980] [2020-10-15 04:40:31,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:40:31,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:40:31,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782143706] [2020-10-15 04:40:31,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:40:31,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:40:31,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:40:31,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:40:31,497 INFO L87 Difference]: Start difference. First operand 6053 states and 10165 transitions. Second operand 5 states. [2020-10-15 04:40:32,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:32,822 INFO L93 Difference]: Finished difference Result 13697 states and 22737 transitions. [2020-10-15 04:40:32,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:40:32,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 198 [2020-10-15 04:40:32,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:32,831 INFO L225 Difference]: With dead ends: 13697 [2020-10-15 04:40:32,832 INFO L226 Difference]: Without dead ends: 7663 [2020-10-15 04:40:32,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:40:32,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7663 states. [2020-10-15 04:40:33,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7663 to 6493. [2020-10-15 04:40:33,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6493 states. [2020-10-15 04:40:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6493 states to 6493 states and 10941 transitions. [2020-10-15 04:40:33,028 INFO L78 Accepts]: Start accepts. Automaton has 6493 states and 10941 transitions. Word has length 198 [2020-10-15 04:40:33,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:33,029 INFO L479 AbstractCegarLoop]: Abstraction has 6493 states and 10941 transitions. [2020-10-15 04:40:33,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:40:33,029 INFO L276 IsEmpty]: Start isEmpty. Operand 6493 states and 10941 transitions. [2020-10-15 04:40:33,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-15 04:40:33,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:33,034 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:40:33,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-15 04:40:33,034 INFO L427 AbstractCegarLoop]: === Iteration 33 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:33,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:33,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1445946602, now seen corresponding path program 1 times [2020-10-15 04:40:33,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:33,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994644286] [2020-10-15 04:40:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:33,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:33,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:33,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:35,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:35,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-15 04:40:35,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:40:35,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2112 [2020-10-15 04:40:35,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:35,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:35,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:40:35,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-15 04:40:35,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 04:40:35,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:35,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:40:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:35,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:35,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:35,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:40:35,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:40:35,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:40:35,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:35,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:35,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:40:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:40:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:40:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-10-15 04:40:35,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994644286] [2020-10-15 04:40:35,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:40:35,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:40:35,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133160767] [2020-10-15 04:40:35,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:40:35,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:40:35,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:40:35,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:40:35,265 INFO L87 Difference]: Start difference. First operand 6493 states and 10941 transitions. Second operand 5 states. [2020-10-15 04:40:36,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:36,576 INFO L93 Difference]: Finished difference Result 14009 states and 23289 transitions. [2020-10-15 04:40:36,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:40:36,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2020-10-15 04:40:36,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:36,585 INFO L225 Difference]: With dead ends: 14009 [2020-10-15 04:40:36,585 INFO L226 Difference]: Without dead ends: 7535 [2020-10-15 04:40:36,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:40:36,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7535 states. [2020-10-15 04:40:36,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7535 to 6509. [2020-10-15 04:40:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6509 states. [2020-10-15 04:40:36,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6509 states to 6509 states and 10957 transitions. [2020-10-15 04:40:36,786 INFO L78 Accepts]: Start accepts. Automaton has 6509 states and 10957 transitions. Word has length 199 [2020-10-15 04:40:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:36,786 INFO L479 AbstractCegarLoop]: Abstraction has 6509 states and 10957 transitions. [2020-10-15 04:40:36,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:40:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 6509 states and 10957 transitions. [2020-10-15 04:40:36,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-15 04:40:36,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:36,792 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:40:36,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-15 04:40:36,792 INFO L427 AbstractCegarLoop]: === Iteration 34 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:36,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:36,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1889828789, now seen corresponding path program 1 times [2020-10-15 04:40:36,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:36,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403564114] [2020-10-15 04:40:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:36,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:36,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:36,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:41,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:41,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-15 04:40:41,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:40:41,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 04:40:41,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:41,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 04:40:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 04:40:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-15 04:40:41,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:40:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:42,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:42,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:42,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:40:42,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:40:42,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:40:42,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:42,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:42,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:40:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:40:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:40:42,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:42,583 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 119 proven. 162 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 04:40:42,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403564114] [2020-10-15 04:40:42,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 04:40:42,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 04:40:42,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557020363] [2020-10-15 04:40:42,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 04:40:42,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:40:42,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 04:40:42,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-15 04:40:42,584 INFO L87 Difference]: Start difference. First operand 6509 states and 10957 transitions. Second operand 12 states. [2020-10-15 04:40:45,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:45,693 INFO L93 Difference]: Finished difference Result 23953 states and 40338 transitions. [2020-10-15 04:40:45,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 04:40:45,694 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 199 [2020-10-15 04:40:45,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:45,713 INFO L225 Difference]: With dead ends: 23953 [2020-10-15 04:40:45,714 INFO L226 Difference]: Without dead ends: 17463 [2020-10-15 04:40:45,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-15 04:40:45,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17463 states. [2020-10-15 04:40:46,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17463 to 11899. [2020-10-15 04:40:46,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11899 states. [2020-10-15 04:40:46,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11899 states to 11899 states and 20111 transitions. [2020-10-15 04:40:46,114 INFO L78 Accepts]: Start accepts. Automaton has 11899 states and 20111 transitions. Word has length 199 [2020-10-15 04:40:46,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:46,114 INFO L479 AbstractCegarLoop]: Abstraction has 11899 states and 20111 transitions. [2020-10-15 04:40:46,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 04:40:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand 11899 states and 20111 transitions. [2020-10-15 04:40:46,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-15 04:40:46,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:46,124 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:40:46,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-15 04:40:46,124 INFO L427 AbstractCegarLoop]: === Iteration 35 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:46,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:46,124 INFO L82 PathProgramCache]: Analyzing trace with hash 355750665, now seen corresponding path program 1 times [2020-10-15 04:40:46,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:46,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54190839] [2020-10-15 04:40:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:46,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:46,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:47,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:48,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:48,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-15 04:40:48,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:40:48,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1998 [2020-10-15 04:40:48,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:48,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:48,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 04:40:48,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-15 04:40:48,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 04:40:48,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:48,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:40:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:40:48,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:40:48,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:40:48,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 04:40:48,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:40:48,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 04:40:48,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:40:48,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:40:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:40:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:40:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:40:48,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 04:40:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2020-10-15 04:40:48,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54190839] [2020-10-15 04:40:48,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:40:48,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:40:48,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982945269] [2020-10-15 04:40:48,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:40:48,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:40:48,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:40:48,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:40:48,237 INFO L87 Difference]: Start difference. First operand 11899 states and 20111 transitions. Second operand 5 states. [2020-10-15 04:40:49,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:40:49,787 INFO L93 Difference]: Finished difference Result 25373 states and 42224 transitions. [2020-10-15 04:40:49,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:40:49,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2020-10-15 04:40:49,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:40:49,804 INFO L225 Difference]: With dead ends: 25373 [2020-10-15 04:40:49,805 INFO L226 Difference]: Without dead ends: 13515 [2020-10-15 04:40:49,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:40:49,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13515 states. [2020-10-15 04:40:50,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13515 to 10635. [2020-10-15 04:40:50,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10635 states. [2020-10-15 04:40:50,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10635 states to 10635 states and 17791 transitions. [2020-10-15 04:40:50,191 INFO L78 Accepts]: Start accepts. Automaton has 10635 states and 17791 transitions. Word has length 199 [2020-10-15 04:40:50,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:40:50,191 INFO L479 AbstractCegarLoop]: Abstraction has 10635 states and 17791 transitions. [2020-10-15 04:40:50,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:40:50,192 INFO L276 IsEmpty]: Start isEmpty. Operand 10635 states and 17791 transitions. [2020-10-15 04:40:50,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-15 04:40:50,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:40:50,200 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-15 04:40:50,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-15 04:40:50,200 INFO L427 AbstractCegarLoop]: === Iteration 36 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:40:50,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:40:50,200 INFO L82 PathProgramCache]: Analyzing trace with hash -2086180792, now seen corresponding path program 1 times [2020-10-15 04:40:50,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:40:50,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900384385] [2020-10-15 04:40:50,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:40:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 04:40:50,243 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 04:40:50,244 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 04:40:50,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-15 04:40:50,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:40:50 BoogieIcfgContainer [2020-10-15 04:40:50,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 04:40:50,302 INFO L168 Benchmark]: Toolchain (without parser) took 189793.87 ms. Allocated memory was 145.8 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 99.5 MB in the beginning and 796.3 MB in the end (delta: -696.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-10-15 04:40:50,303 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-15 04:40:50,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1071.43 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 99.1 MB in the beginning and 159.4 MB in the end (delta: -60.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-15 04:40:50,304 INFO L168 Benchmark]: Boogie Preprocessor took 157.94 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 152.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2020-10-15 04:40:50,304 INFO L168 Benchmark]: RCFGBuilder took 1340.68 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 152.3 MB in the beginning and 169.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. [2020-10-15 04:40:50,305 INFO L168 Benchmark]: TraceAbstraction took 187218.41 ms. Allocated memory was 235.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 169.0 MB in the beginning and 796.3 MB in the end (delta: -627.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-10-15 04:40:50,307 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1071.43 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 99.1 MB in the beginning and 159.4 MB in the end (delta: -60.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 157.94 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 152.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1340.68 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 152.3 MB in the beginning and 169.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 187218.41 ms. Allocated memory was 235.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 169.0 MB in the beginning and 796.3 MB in the end (delta: -627.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1726]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 1121. Possible FailurePath: [L1042] static int init = 1; [L1043] static SSL_METHOD SSLv3_server_data ; [L1065] SSL *s ; [L1066] int tmp ; [L1070] s = malloc(sizeof(SSL)) [L1071] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1072] s->ctx = malloc(sizeof(SSL_CTX)) [L1073] s->session = malloc(sizeof(SSL_SESSION)) [L1074] CALL ssl3_accept(s) [L1080] BUF_MEM *buf ; [L1081] unsigned long l ; [L1082] unsigned long Time ; [L1083] unsigned long tmp ; [L1084] void (*cb)() ; [L1085] long num1 ; [L1086] int ret ; [L1087] int new_state ; [L1088] int state ; [L1089] int skip ; [L1090] int got_new_session ; [L1091] int tmp___1 = __VERIFIER_nondet_int() ; [L1092] int tmp___2 = __VERIFIER_nondet_int() ; [L1093] int tmp___3 = __VERIFIER_nondet_int() ; [L1094] int tmp___4 = __VERIFIER_nondet_int() ; [L1095] int tmp___5 = __VERIFIER_nondet_int() ; [L1096] int tmp___6 = __VERIFIER_nondet_int() ; [L1097] int tmp___7 ; [L1098] long tmp___8 = __VERIFIER_nondet_long() ; [L1099] int tmp___9 = __VERIFIER_nondet_int() ; [L1100] int tmp___10 = __VERIFIER_nondet_int() ; [L1101] int blastFlag ; [L1105] s->state = 8464 [L1106] blastFlag = 0 [L1107] s->hit=__VERIFIER_nondet_int () [L1108] s->state = 8464 [L1109] tmp = __VERIFIER_nondet_int() [L1110] Time = tmp [L1111] cb = (void (*)())((void *)0) [L1112] ret = -1 [L1113] skip = 0 [L1114] got_new_session = 0 [L1115] EXPR s->info_callback [L1115] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1116] EXPR s->info_callback [L1116] cb = s->info_callback [L1120] EXPR s->in_handshake [L1120] s->in_handshake += 1 [L1121] COND FALSE !(tmp___1 & 12288) [L1130] EXPR s->cert [L1130] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1136] COND TRUE 1 [L1138] EXPR s->state [L1138] state = s->state [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 12292) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 16384) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 8192) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 24576) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 8195) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 8480) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 8481) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 8482) [L1163] EXPR s->state [L1163] COND TRUE s->state == 8464 [L1323] s->shutdown = 0 [L1324] ret = __VERIFIER_nondet_int() [L1325] COND TRUE blastFlag == 0 [L1326] blastFlag = 1 [L1330] COND FALSE !(ret <= 0) [L1335] got_new_session = 1 [L1336] s->state = 8496 [L1337] s->init_num = 0 [L1685] EXPR s->s3 [L1685] EXPR (s->s3)->tmp.reuse_message [L1685] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1714] skip = 0 [L1136] COND TRUE 1 [L1138] EXPR s->state [L1138] state = s->state [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 12292) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 16384) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 8192) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 24576) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 8195) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 8480) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 8481) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 8482) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 8464) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 8465) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 8466) [L1172] EXPR s->state [L1172] COND TRUE s->state == 8496 [L1341] ret = __VERIFIER_nondet_int() [L1342] COND TRUE blastFlag == 1 [L1343] blastFlag = 2 [L1347] COND FALSE !(ret <= 0) [L1352] s->hit [L1352] COND TRUE s->hit [L1353] s->state = 8656 [L1357] s->init_num = 0 [L1685] EXPR s->s3 [L1685] EXPR (s->s3)->tmp.reuse_message [L1685] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1714] skip = 0 [L1136] COND TRUE 1 [L1138] EXPR s->state [L1138] state = s->state [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 12292) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 16384) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 8192) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 24576) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 8195) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 8480) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 8481) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 8482) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 8464) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 8465) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 8466) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 8496) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 8497) [L1178] EXPR s->state [L1178] COND FALSE !(s->state == 8512) [L1181] EXPR s->state [L1181] COND FALSE !(s->state == 8513) [L1184] EXPR s->state [L1184] COND FALSE !(s->state == 8528) [L1187] EXPR s->state [L1187] COND FALSE !(s->state == 8529) [L1190] EXPR s->state [L1190] COND FALSE !(s->state == 8544) [L1193] EXPR s->state [L1193] COND FALSE !(s->state == 8545) [L1196] EXPR s->state [L1196] COND FALSE !(s->state == 8560) [L1199] EXPR s->state [L1199] COND FALSE !(s->state == 8561) [L1202] EXPR s->state [L1202] COND FALSE !(s->state == 8448) [L1205] EXPR s->state [L1205] COND FALSE !(s->state == 8576) [L1208] EXPR s->state [L1208] COND FALSE !(s->state == 8577) [L1211] EXPR s->state [L1211] COND FALSE !(s->state == 8592) [L1214] EXPR s->state [L1214] COND FALSE !(s->state == 8593) [L1217] EXPR s->state [L1217] COND FALSE !(s->state == 8608) [L1220] EXPR s->state [L1220] COND FALSE !(s->state == 8609) [L1223] EXPR s->state [L1223] COND FALSE !(s->state == 8640) [L1226] EXPR s->state [L1226] COND FALSE !(s->state == 8641) [L1229] EXPR s->state [L1229] COND TRUE s->state == 8656 [L1570] EXPR s->session [L1570] EXPR s->s3 [L1570] EXPR (s->s3)->tmp.new_cipher [L1570] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1571] COND FALSE !(! tmp___9) [L1577] ret = __VERIFIER_nondet_int() [L1578] COND TRUE blastFlag == 2 [L1579] blastFlag = 3 [L1591] COND FALSE !(ret <= 0) [L1596] s->state = 8672 [L1597] s->init_num = 0 [L1598] COND FALSE !(! tmp___10) [L1685] EXPR s->s3 [L1685] EXPR (s->s3)->tmp.reuse_message [L1685] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1714] skip = 0 [L1136] COND TRUE 1 [L1138] EXPR s->state [L1138] state = s->state [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 12292) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 16384) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 8192) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 24576) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 8195) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 8480) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 8481) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 8482) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 8464) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 8465) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 8466) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 8496) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 8497) [L1178] EXPR s->state [L1178] COND FALSE !(s->state == 8512) [L1181] EXPR s->state [L1181] COND FALSE !(s->state == 8513) [L1184] EXPR s->state [L1184] COND FALSE !(s->state == 8528) [L1187] EXPR s->state [L1187] COND FALSE !(s->state == 8529) [L1190] EXPR s->state [L1190] COND FALSE !(s->state == 8544) [L1193] EXPR s->state [L1193] COND FALSE !(s->state == 8545) [L1196] EXPR s->state [L1196] COND FALSE !(s->state == 8560) [L1199] EXPR s->state [L1199] COND FALSE !(s->state == 8561) [L1202] EXPR s->state [L1202] COND FALSE !(s->state == 8448) [L1205] EXPR s->state [L1205] COND FALSE !(s->state == 8576) [L1208] EXPR s->state [L1208] COND FALSE !(s->state == 8577) [L1211] EXPR s->state [L1211] COND FALSE !(s->state == 8592) [L1214] EXPR s->state [L1214] COND FALSE !(s->state == 8593) [L1217] EXPR s->state [L1217] COND FALSE !(s->state == 8608) [L1220] EXPR s->state [L1220] COND FALSE !(s->state == 8609) [L1223] EXPR s->state [L1223] COND FALSE !(s->state == 8640) [L1226] EXPR s->state [L1226] COND FALSE !(s->state == 8641) [L1229] EXPR s->state [L1229] COND FALSE !(s->state == 8656) [L1232] EXPR s->state [L1232] COND FALSE !(s->state == 8657) [L1235] EXPR s->state [L1235] COND TRUE s->state == 8672 [L1607] ret = __VERIFIER_nondet_int() [L1608] COND TRUE blastFlag == 3 [L1609] blastFlag = 4 [L1613] COND FALSE !(ret <= 0) [L1618] s->state = 8448 [L1619] s->hit [L1619] COND TRUE s->hit [L1620] EXPR s->s3 [L1620] (s->s3)->tmp.next_state = 8640 [L1624] s->init_num = 0 [L1685] EXPR s->s3 [L1685] EXPR (s->s3)->tmp.reuse_message [L1685] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1714] skip = 0 [L1136] COND TRUE 1 [L1138] EXPR s->state [L1138] state = s->state [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 12292) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 16384) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 8192) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 24576) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 8195) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 8480) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 8481) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 8482) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 8464) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 8465) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 8466) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 8496) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 8497) [L1178] EXPR s->state [L1178] COND FALSE !(s->state == 8512) [L1181] EXPR s->state [L1181] COND FALSE !(s->state == 8513) [L1184] EXPR s->state [L1184] COND FALSE !(s->state == 8528) [L1187] EXPR s->state [L1187] COND FALSE !(s->state == 8529) [L1190] EXPR s->state [L1190] COND FALSE !(s->state == 8544) [L1193] EXPR s->state [L1193] COND FALSE !(s->state == 8545) [L1196] EXPR s->state [L1196] COND FALSE !(s->state == 8560) [L1199] EXPR s->state [L1199] COND FALSE !(s->state == 8561) [L1202] EXPR s->state [L1202] COND TRUE s->state == 8448 [L1490] COND FALSE !(num1 > 0L) [L1503] EXPR s->s3 [L1503] EXPR (s->s3)->tmp.next_state [L1503] s->state = (s->s3)->tmp.next_state [L1685] EXPR s->s3 [L1685] EXPR (s->s3)->tmp.reuse_message [L1685] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1714] skip = 0 [L1136] COND TRUE 1 [L1138] EXPR s->state [L1138] state = s->state [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 12292) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 16384) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 8192) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 24576) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 8195) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 8480) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 8481) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 8482) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 8464) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 8465) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 8466) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 8496) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 8497) [L1178] EXPR s->state [L1178] COND FALSE !(s->state == 8512) [L1181] EXPR s->state [L1181] COND FALSE !(s->state == 8513) [L1184] EXPR s->state [L1184] COND FALSE !(s->state == 8528) [L1187] EXPR s->state [L1187] COND FALSE !(s->state == 8529) [L1190] EXPR s->state [L1190] COND FALSE !(s->state == 8544) [L1193] EXPR s->state [L1193] COND FALSE !(s->state == 8545) [L1196] EXPR s->state [L1196] COND FALSE !(s->state == 8560) [L1199] EXPR s->state [L1199] COND FALSE !(s->state == 8561) [L1202] EXPR s->state [L1202] COND FALSE !(s->state == 8448) [L1205] EXPR s->state [L1205] COND FALSE !(s->state == 8576) [L1208] EXPR s->state [L1208] COND FALSE !(s->state == 8577) [L1211] EXPR s->state [L1211] COND FALSE !(s->state == 8592) [L1214] EXPR s->state [L1214] COND FALSE !(s->state == 8593) [L1217] EXPR s->state [L1217] COND FALSE !(s->state == 8608) [L1220] EXPR s->state [L1220] COND FALSE !(s->state == 8609) [L1223] EXPR s->state [L1223] COND TRUE s->state == 8640 [L1550] ret = __VERIFIER_nondet_int() [L1551] COND TRUE blastFlag == 4 [L1726] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 185 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 187.1s, OverallIterations: 36, TraceHistogramMax: 7, AutomataDifference: 48.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8925 SDtfs, 7008 SDslu, 15336 SDs, 0 SdLazy, 23540 SolverSat, 1484 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 329 GetRequests, 127 SyntacticMatches, 20 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13839occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.2s AutomataMinimizationTime, 35 MinimizatonAttempts, 57367 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 127.5s InterpolantComputationTime, 6109 NumberOfCodeBlocks, 6109 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 5875 ConstructedInterpolants, 0 QuantifiedInterpolants, 5277125 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 30 PerfectInterpolantSequences, 7112/7950 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...