/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:29:58,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:29:58,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:29:58,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:29:58,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:29:58,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:29:58,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:29:58,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:29:58,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:29:58,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:29:58,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:29:58,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:29:58,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:29:58,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:29:58,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:29:58,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:29:58,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:29:58,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:29:58,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:29:58,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:29:58,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:29:58,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:29:58,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:29:58,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:29:58,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:29:58,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:29:58,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:29:58,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:29:58,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:29:59,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:29:59,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:29:59,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:29:59,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:29:59,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:29:59,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:29:59,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:29:59,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:29:59,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:29:59,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:29:59,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:29:59,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:29:59,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:29:59,059 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:29:59,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:29:59,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:29:59,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:29:59,062 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:29:59,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:29:59,063 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:29:59,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:29:59,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:29:59,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:29:59,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:29:59,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:29:59,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:29:59,065 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:29:59,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:29:59,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:29:59,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:29:59,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:29:59,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:29:59,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:29:59,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:29:59,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:29:59,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:29:59,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:29:59,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:29:59,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:29:59,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:29:59,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:29:59,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:29:59,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:29:59,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:29:59,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:29:59,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:29:59,563 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:29:59,564 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:29:59,565 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-09-25 05:29:59,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15398679f/ea9c89f8c991421f982fc62b3714aa34/FLAG583e41bcb [2020-09-25 05:30:00,236 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:30:00,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-09-25 05:30:00,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15398679f/ea9c89f8c991421f982fc62b3714aa34/FLAG583e41bcb [2020-09-25 05:30:00,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15398679f/ea9c89f8c991421f982fc62b3714aa34 [2020-09-25 05:30:00,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:30:00,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:30:00,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:30:00,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:30:00,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:30:00,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:30:00" (1/1) ... [2020-09-25 05:30:00,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440c5c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:00, skipping insertion in model container [2020-09-25 05:30:00,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:30:00" (1/1) ... [2020-09-25 05:30:00,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:30:00,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:30:00,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:30:00,962 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:30:01,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:30:01,131 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:30:01,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:01 WrapperNode [2020-09-25 05:30:01,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:30:01,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:30:01,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:30:01,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:30:01,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:01" (1/1) ... [2020-09-25 05:30:01,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:01" (1/1) ... [2020-09-25 05:30:01,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:01" (1/1) ... [2020-09-25 05:30:01,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:01" (1/1) ... [2020-09-25 05:30:01,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:01" (1/1) ... [2020-09-25 05:30:01,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:01" (1/1) ... [2020-09-25 05:30:01,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:01" (1/1) ... [2020-09-25 05:30:01,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:30:01,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:30:01,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:30:01,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:30:01,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:30:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:30:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:30:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-25 05:30:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-25 05:30:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-25 05:30:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:30:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-25 05:30:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-25 05:30:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-25 05:30:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-25 05:30:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-25 05:30:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-25 05:30:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-25 05:30:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:30:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 05:30:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:30:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 05:30:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-25 05:30:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-25 05:30:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-25 05:30:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-25 05:30:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-25 05:30:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-25 05:30:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-25 05:30:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-25 05:30:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-25 05:30:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:30:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-25 05:30:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:30:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:30:01,604 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 05:30:01,745 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-09-25 05:30:01,745 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-09-25 05:30:01,747 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 05:30:01,801 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2020-09-25 05:30:01,802 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2020-09-25 05:30:01,827 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 05:30:01,857 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-25 05:30:01,857 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-25 05:30:01,873 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 05:30:02,092 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-25 05:30:02,092 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-25 05:30:02,112 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:30:02,112 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 05:30:02,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:30:02 BoogieIcfgContainer [2020-09-25 05:30:02,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:30:02,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:30:02,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:30:02,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:30:02,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:30:00" (1/3) ... [2020-09-25 05:30:02,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71462ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:30:02, skipping insertion in model container [2020-09-25 05:30:02,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:30:01" (2/3) ... [2020-09-25 05:30:02,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71462ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:30:02, skipping insertion in model container [2020-09-25 05:30:02,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:30:02" (3/3) ... [2020-09-25 05:30:02,131 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-09-25 05:30:02,143 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:30:02,154 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:30:02,175 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:30:02,208 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:30:02,208 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:30:02,208 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:30:02,208 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:30:02,209 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:30:02,209 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:30:02,209 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:30:02,209 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:30:02,241 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states. [2020-09-25 05:30:02,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 05:30:02,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:02,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:02,256 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:02,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:02,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1164793869, now seen corresponding path program 1 times [2020-09-25 05:30:02,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:02,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156064645] [2020-09-25 05:30:02,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:02,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:02,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:02,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:03,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:03,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:03,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:03,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:03,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 05:30:03,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:30:03,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1500 [2020-09-25 05:30:03,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:03,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:03,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 05:30:03,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 05:30:03,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:30:04,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:04,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:04,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:04,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:04,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:04,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:30:04,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:04,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:04,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:04,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:04,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:04,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:04,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:04,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:04,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:04,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:04,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:30:04,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:04,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 05:30:04,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:04,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156064645] [2020-09-25 05:30:04,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:04,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:30:04,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81302193] [2020-09-25 05:30:04,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:30:04,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:04,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:30:04,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:30:04,332 INFO L87 Difference]: Start difference. First operand 366 states. Second operand 5 states. [2020-09-25 05:30:05,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:05,509 INFO L93 Difference]: Finished difference Result 666 states and 826 transitions. [2020-09-25 05:30:05,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:30:05,511 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2020-09-25 05:30:05,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:05,532 INFO L225 Difference]: With dead ends: 666 [2020-09-25 05:30:05,533 INFO L226 Difference]: Without dead ends: 382 [2020-09-25 05:30:05,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:30:05,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-09-25 05:30:05,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 351. [2020-09-25 05:30:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-09-25 05:30:05,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 401 transitions. [2020-09-25 05:30:05,634 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 401 transitions. Word has length 83 [2020-09-25 05:30:05,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:05,635 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 401 transitions. [2020-09-25 05:30:05,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:30:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 401 transitions. [2020-09-25 05:30:05,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-25 05:30:05,642 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:05,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:05,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:30:05,643 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:05,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:05,644 INFO L82 PathProgramCache]: Analyzing trace with hash 192642435, now seen corresponding path program 1 times [2020-09-25 05:30:05,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:05,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306002547] [2020-09-25 05:30:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:05,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:06,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:06,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 05:30:06,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:06,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-09-25 05:30:06,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:06,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:06,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:06,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-09-25 05:30:06,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 05:30:06,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:06,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:06,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:06,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:06,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:06,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:06,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:06,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:06,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:06,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:06,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:06,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:06,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:06,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:06,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:06,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:06,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:06,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:06,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:06,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:06,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:06,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:06,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:06,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:06,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:06,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:06,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:06,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:06,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:06,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:06,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:06,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:06,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:30:06,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:06,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306002547] [2020-09-25 05:30:06,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:06,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:30:06,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374940950] [2020-09-25 05:30:06,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:30:06,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:06,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:30:06,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:30:06,450 INFO L87 Difference]: Start difference. First operand 351 states and 401 transitions. Second operand 6 states. [2020-09-25 05:30:07,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:07,748 INFO L93 Difference]: Finished difference Result 588 states and 683 transitions. [2020-09-25 05:30:07,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:30:07,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-09-25 05:30:07,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:07,755 INFO L225 Difference]: With dead ends: 588 [2020-09-25 05:30:07,756 INFO L226 Difference]: Without dead ends: 502 [2020-09-25 05:30:07,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:30:07,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-09-25 05:30:07,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 463. [2020-09-25 05:30:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-25 05:30:07,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 527 transitions. [2020-09-25 05:30:07,803 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 527 transitions. Word has length 146 [2020-09-25 05:30:07,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:07,804 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 527 transitions. [2020-09-25 05:30:07,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:30:07,804 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 527 transitions. [2020-09-25 05:30:07,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:30:07,807 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:07,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:07,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:30:07,808 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:07,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:07,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1733953169, now seen corresponding path program 1 times [2020-09-25 05:30:07,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:07,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831771510] [2020-09-25 05:30:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:07,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:08,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:08,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-25 05:30:08,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:08,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-25 05:30:08,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:08,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 05:30:08,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 05:30:08,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:08,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:08,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:08,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:08,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:08,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:08,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:08,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:08,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:08,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:08,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:08,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:08,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:08,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:08,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:08,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:08,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:08,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:08,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:30:08,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:08,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:08,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:08,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:08,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:08,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:08,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:08,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:08,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:08,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:08,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:08,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:08,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:08,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:30:08,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:08,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831771510] [2020-09-25 05:30:08,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:08,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:30:08,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816772566] [2020-09-25 05:30:08,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:30:08,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:08,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:30:08,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:30:08,418 INFO L87 Difference]: Start difference. First operand 463 states and 527 transitions. Second operand 6 states. [2020-09-25 05:30:09,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:09,612 INFO L93 Difference]: Finished difference Result 665 states and 762 transitions. [2020-09-25 05:30:09,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:30:09,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2020-09-25 05:30:09,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:09,617 INFO L225 Difference]: With dead ends: 665 [2020-09-25 05:30:09,617 INFO L226 Difference]: Without dead ends: 556 [2020-09-25 05:30:09,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:30:09,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-09-25 05:30:09,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 502. [2020-09-25 05:30:09,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-25 05:30:09,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 574 transitions. [2020-09-25 05:30:09,664 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 574 transitions. Word has length 148 [2020-09-25 05:30:09,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:09,664 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 574 transitions. [2020-09-25 05:30:09,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:30:09,665 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 574 transitions. [2020-09-25 05:30:09,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 05:30:09,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:09,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:09,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:30:09,674 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:09,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:09,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1023389875, now seen corresponding path program 1 times [2020-09-25 05:30:09,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:09,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270668849] [2020-09-25 05:30:09,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:09,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:10,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:10,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 05:30:10,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:10,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-25 05:30:10,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:10,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:10,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:10,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 05:30:10,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:30:10,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:10,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:10,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:10,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:10,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:10,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:10,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:10,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:10,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:10,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:10,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:10,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:10,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:10,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:10,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:10,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:10,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:30:10,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:10,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:10,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:10,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:10,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:10,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:10,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:10,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:10,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:30:10,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:10,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:10,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:10,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:10,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:10,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:10,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270668849] [2020-09-25 05:30:10,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:10,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:30:10,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752526116] [2020-09-25 05:30:10,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:30:10,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:10,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:30:10,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:30:10,398 INFO L87 Difference]: Start difference. First operand 502 states and 574 transitions. Second operand 6 states. [2020-09-25 05:30:11,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:11,585 INFO L93 Difference]: Finished difference Result 506 states and 577 transitions. [2020-09-25 05:30:11,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:30:11,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 05:30:11,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:11,590 INFO L225 Difference]: With dead ends: 506 [2020-09-25 05:30:11,591 INFO L226 Difference]: Without dead ends: 503 [2020-09-25 05:30:11,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:30:11,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-25 05:30:11,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 502. [2020-09-25 05:30:11,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-25 05:30:11,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 573 transitions. [2020-09-25 05:30:11,632 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 573 transitions. Word has length 172 [2020-09-25 05:30:11,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:11,633 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 573 transitions. [2020-09-25 05:30:11,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:30:11,634 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 573 transitions. [2020-09-25 05:30:11,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 05:30:11,642 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:11,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:11,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:30:11,643 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:11,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:11,644 INFO L82 PathProgramCache]: Analyzing trace with hash -734364592, now seen corresponding path program 1 times [2020-09-25 05:30:11,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:11,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973497304] [2020-09-25 05:30:11,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:11,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:11,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:12,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 05:30:12,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:12,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-09-25 05:30:12,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:12,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 05:30:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:30:12,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:12,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:12,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:12,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:12,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:12,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:30:12,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:12,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:12,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:12,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:12,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:30:12,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:12,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:12,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:12,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:12,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:30:12,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:12,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:12,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:12,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:12,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:12,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:12,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:12,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:12,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:30:12,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:12,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:12,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:12,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:12,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:30:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:12,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:12,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:12,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:30:12,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:12,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:12,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:12,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:12,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:30:12,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:30:12,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:12,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:12,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973497304] [2020-09-25 05:30:12,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:12,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:30:12,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349973685] [2020-09-25 05:30:12,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:30:12,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:12,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:30:12,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:30:12,849 INFO L87 Difference]: Start difference. First operand 502 states and 573 transitions. Second operand 8 states. [2020-09-25 05:30:14,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:14,061 INFO L93 Difference]: Finished difference Result 580 states and 662 transitions. [2020-09-25 05:30:14,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:30:14,061 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 186 [2020-09-25 05:30:14,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:14,069 INFO L225 Difference]: With dead ends: 580 [2020-09-25 05:30:14,069 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 05:30:14,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:30:14,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 05:30:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 451. [2020-09-25 05:30:14,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-09-25 05:30:14,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 511 transitions. [2020-09-25 05:30:14,119 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 511 transitions. Word has length 186 [2020-09-25 05:30:14,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:14,120 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 511 transitions. [2020-09-25 05:30:14,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:30:14,121 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 511 transitions. [2020-09-25 05:30:14,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 05:30:14,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:14,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:14,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:30:14,126 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:14,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:14,127 INFO L82 PathProgramCache]: Analyzing trace with hash -617767856, now seen corresponding path program 1 times [2020-09-25 05:30:14,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:14,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578271258] [2020-09-25 05:30:14,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:14,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:14,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:15,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:15,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:15,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:17,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 05:30:17,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:30:17,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3118 [2020-09-25 05:30:17,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:17,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 05:30:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 05:30:17,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:17,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:17,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:17,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:17,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:17,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:17,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:17,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:17,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:17,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:17,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:17,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:17,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:17,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:17,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:30:17,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:17,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:17,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:17,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:17,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:17,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:17,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:17,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:17,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:17,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:17,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:30:17,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:17,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 05:30:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:17,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:17,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:30:17,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:17,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 05:30:17,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:17,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 05:30:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:17,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 05:30:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:17,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:17,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:17,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:30:17,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:17,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:17,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:17,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:17,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:17,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578271258] [2020-09-25 05:30:17,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:17,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:30:17,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92677976] [2020-09-25 05:30:17,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:30:17,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:17,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:30:17,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:30:17,663 INFO L87 Difference]: Start difference. First operand 451 states and 511 transitions. Second operand 8 states. [2020-09-25 05:30:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:18,814 INFO L93 Difference]: Finished difference Result 460 states and 522 transitions. [2020-09-25 05:30:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:30:18,815 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2020-09-25 05:30:18,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:18,818 INFO L225 Difference]: With dead ends: 460 [2020-09-25 05:30:18,818 INFO L226 Difference]: Without dead ends: 280 [2020-09-25 05:30:18,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:30:18,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-25 05:30:18,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-09-25 05:30:18,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-25 05:30:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 293 transitions. [2020-09-25 05:30:18,839 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 293 transitions. Word has length 191 [2020-09-25 05:30:18,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:18,840 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 293 transitions. [2020-09-25 05:30:18,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:30:18,840 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 293 transitions. [2020-09-25 05:30:18,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 05:30:18,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:18,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:18,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:30:18,846 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:18,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:18,847 INFO L82 PathProgramCache]: Analyzing trace with hash -836248096, now seen corresponding path program 1 times [2020-09-25 05:30:18,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:18,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680072476] [2020-09-25 05:30:18,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:18,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:19,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:19,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-25 05:30:19,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:19,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-25 05:30:19,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:19,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:19,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:19,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-25 05:30:19,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:30:19,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:19,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:19,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:19,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:19,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:19,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:30:19,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:19,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:19,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:19,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:19,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:19,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:19,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:19,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:19,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:19,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:19,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:19,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:19,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:19,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:19,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:19,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:19,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:19,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:19,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:19,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:19,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:30:19,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:19,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:19,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:19,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:19,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 05:30:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:19,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:19,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:19,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:30:19,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:19,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:30:19,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:19,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:19,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:19,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:19,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:19,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:30:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:19,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:19,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:19,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:30:19,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:19,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:30:19,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:19,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:19,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:19,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 05:30:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:19,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:19,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:19,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:19,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:19,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:30:19,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:19,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:19,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:19,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:30:19,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:19,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:19,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680072476] [2020-09-25 05:30:19,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:19,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:30:19,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195521370] [2020-09-25 05:30:19,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:30:19,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:19,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:30:19,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:30:19,567 INFO L87 Difference]: Start difference. First operand 280 states and 293 transitions. Second operand 8 states. [2020-09-25 05:30:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:20,034 INFO L93 Difference]: Finished difference Result 325 states and 343 transitions. [2020-09-25 05:30:20,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:30:20,034 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-09-25 05:30:20,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:20,037 INFO L225 Difference]: With dead ends: 325 [2020-09-25 05:30:20,037 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 05:30:20,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:30:20,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 05:30:20,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2020-09-25 05:30:20,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 05:30:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 287 transitions. [2020-09-25 05:30:20,052 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 287 transitions. Word has length 200 [2020-09-25 05:30:20,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:20,052 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 287 transitions. [2020-09-25 05:30:20,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:30:20,053 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 287 transitions. [2020-09-25 05:30:20,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 05:30:20,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:20,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:20,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:30:20,057 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:20,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:20,057 INFO L82 PathProgramCache]: Analyzing trace with hash -602224561, now seen corresponding path program 1 times [2020-09-25 05:30:20,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:20,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594977791] [2020-09-25 05:30:20,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:20,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:20,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:21,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 05:30:21,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1422 [2020-09-25 05:30:21,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:21,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 05:30:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-25 05:30:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:21,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:21,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:21,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:21,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:21,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:21,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:21,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:21,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:21,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:21,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:21,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:21,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:21,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:21,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:21,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 05:30:21,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:21,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:21,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:30:21,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:21,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:30:21,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:21,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:21,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:21,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:21,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:21,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:30:21,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:21,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:21,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:30:21,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:21,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:30:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:21,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:21,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 05:30:21,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:21,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 05:30:21,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:21,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:30:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 05:30:21,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:30:21,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:21,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:30:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:21,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:21,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:30:21,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:21,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:30:21,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:21,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:21,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:21,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:21,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:21,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:21,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:30:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:21,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:21,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:30:21,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:21,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:30:21,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:21,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:21,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:21,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:30:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:21,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:21,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:21,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:21,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:21,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:21,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:30:21,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:22,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:22,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594977791] [2020-09-25 05:30:22,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:22,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 05:30:22,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395845203] [2020-09-25 05:30:22,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 05:30:22,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:22,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 05:30:22,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:30:22,049 INFO L87 Difference]: Start difference. First operand 276 states and 287 transitions. Second operand 12 states. [2020-09-25 05:30:22,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:22,927 INFO L93 Difference]: Finished difference Result 321 states and 337 transitions. [2020-09-25 05:30:22,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:30:22,928 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 216 [2020-09-25 05:30:22,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:22,931 INFO L225 Difference]: With dead ends: 321 [2020-09-25 05:30:22,931 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 05:30:22,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2020-09-25 05:30:22,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 05:30:22,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-09-25 05:30:22,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-25 05:30:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 284 transitions. [2020-09-25 05:30:22,947 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 284 transitions. Word has length 216 [2020-09-25 05:30:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:22,948 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 284 transitions. [2020-09-25 05:30:22,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 05:30:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 284 transitions. [2020-09-25 05:30:22,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 05:30:22,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:22,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:22,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:30:22,952 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:22,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:22,952 INFO L82 PathProgramCache]: Analyzing trace with hash -2077149002, now seen corresponding path program 1 times [2020-09-25 05:30:22,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:22,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134426788] [2020-09-25 05:30:22,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:23,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:23,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:23,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:24,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:24,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:24,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-25 05:30:24,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:30:24,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1748 [2020-09-25 05:30:24,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:24,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-09-25 05:30:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:30:24,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:24,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:24,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:24,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:24,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:24,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:24,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:24,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:24,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:24,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:24,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:24,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:24,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:24,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:24,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:24,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:30:24,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:24,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:24,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:24,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:24,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:24,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:24,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:24,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:24,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:24,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:24,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:24,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:24,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:24,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:24,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:24,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:24,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:30:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:24,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:24,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:24,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 05:30:24,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:24,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 05:30:24,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:24,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:24,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:24,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 05:30:24,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:30:24,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:24,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:30:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:24,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:25,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:25,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:30:25,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:25,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:30:25,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:25,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:25,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:30:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:25,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:25,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:25,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:30:25,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:25,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:25,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:25,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:25,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:25,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:25,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:25,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:25,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:30:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:25,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:25,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:25,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:25,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:25,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:25,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:25,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:25,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:25,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:25,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134426788] [2020-09-25 05:30:25,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:25,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:30:25,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924523988] [2020-09-25 05:30:25,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:30:25,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:25,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:30:25,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:30:25,078 INFO L87 Difference]: Start difference. First operand 274 states and 284 transitions. Second operand 9 states. [2020-09-25 05:30:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:25,792 INFO L93 Difference]: Finished difference Result 329 states and 345 transitions. [2020-09-25 05:30:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:30:25,792 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 218 [2020-09-25 05:30:25,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:25,795 INFO L225 Difference]: With dead ends: 329 [2020-09-25 05:30:25,795 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 05:30:25,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:30:25,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 05:30:25,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 277. [2020-09-25 05:30:25,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 05:30:25,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 287 transitions. [2020-09-25 05:30:25,807 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 287 transitions. Word has length 218 [2020-09-25 05:30:25,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:25,808 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 287 transitions. [2020-09-25 05:30:25,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:30:25,808 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 287 transitions. [2020-09-25 05:30:25,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-25 05:30:25,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:25,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:25,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 05:30:25,812 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:25,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:25,812 INFO L82 PathProgramCache]: Analyzing trace with hash 666432309, now seen corresponding path program 1 times [2020-09-25 05:30:25,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:25,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518137428] [2020-09-25 05:30:25,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:25,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:26,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:26,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:26,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:29,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:29,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 05:30:29,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:30:29,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3371 [2020-09-25 05:30:29,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:29,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:29,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 237 [2020-09-25 05:30:29,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:30:29,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:29,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:29,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:29,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:29,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:29,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:29,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:30:29,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:29,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:29,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:29,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:29,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:29,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:29,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:29,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:29,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:30:29,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:29,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:29,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:29,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:29,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:29,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:29,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:29,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:29,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:29,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:29,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:29,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:29,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:29,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:29,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:29,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:30:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:29,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:29,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:29,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 05:30:29,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 05:30:29,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:29,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:29,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:29,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:30:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:29,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:29,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:29,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:30:29,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:29,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:29,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:29,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:29,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:29,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:29,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:30:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:29,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:29,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:29,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:30:29,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:29,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:29,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:29,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:29,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:29,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:29,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:29,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:29,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:30:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:29,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:29,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:29,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:29,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:29,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:29,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:29,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:29,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:29,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:29,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:29,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:29,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518137428] [2020-09-25 05:30:29,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:29,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:30:29,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603063632] [2020-09-25 05:30:29,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:30:29,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:29,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:30:29,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:30:29,505 INFO L87 Difference]: Start difference. First operand 277 states and 287 transitions. Second operand 9 states. [2020-09-25 05:30:30,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:30,225 INFO L93 Difference]: Finished difference Result 299 states and 310 transitions. [2020-09-25 05:30:30,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:30:30,227 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 219 [2020-09-25 05:30:30,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:30,229 INFO L225 Difference]: With dead ends: 299 [2020-09-25 05:30:30,230 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 05:30:30,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:30:30,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 05:30:30,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 279. [2020-09-25 05:30:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-09-25 05:30:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 288 transitions. [2020-09-25 05:30:30,243 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 288 transitions. Word has length 219 [2020-09-25 05:30:30,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:30,243 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 288 transitions. [2020-09-25 05:30:30,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:30:30,243 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 288 transitions. [2020-09-25 05:30:30,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-25 05:30:30,246 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:30,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:30,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 05:30:30,247 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:30,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:30,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1112255828, now seen corresponding path program 1 times [2020-09-25 05:30:30,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:30,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765724668] [2020-09-25 05:30:30,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:30,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:30,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:31,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:31,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:31,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:34,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:34,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 05:30:34,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:30:34,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4469 [2020-09-25 05:30:34,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:34,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-25 05:30:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:30:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:34,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:34,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:34,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:34,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:34,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:34,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:34,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:34,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:34,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:34,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:34,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:34,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:34,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:34,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:30:34,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:34,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:34,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:34,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:34,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:34,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:34,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:34,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:34,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:34,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:34,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:34,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:34,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:34,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:34,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:30:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:34,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:34,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:34,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 05:30:34,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:34,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 05:30:35,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:35,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:30:35,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:35,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:30:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:35,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:35,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:35,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:30:35,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:35,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:30:35,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:35,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:35,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:30:35,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:35,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:30:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:35,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:35,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:35,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:30:35,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:35,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:30:35,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:35,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:35,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:35,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:35,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:30:35,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:35,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:30:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:35,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:35,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:35,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:35,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:35,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:35,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:35,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:35,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:35,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:35,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:30:35,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:35,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:35,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765724668] [2020-09-25 05:30:35,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:35,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:30:35,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988309798] [2020-09-25 05:30:35,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:30:35,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:35,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:30:35,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:30:35,101 INFO L87 Difference]: Start difference. First operand 279 states and 288 transitions. Second operand 9 states. [2020-09-25 05:30:35,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:35,519 INFO L93 Difference]: Finished difference Result 305 states and 316 transitions. [2020-09-25 05:30:35,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:30:35,519 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 220 [2020-09-25 05:30:35,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:35,521 INFO L225 Difference]: With dead ends: 305 [2020-09-25 05:30:35,521 INFO L226 Difference]: Without dead ends: 250 [2020-09-25 05:30:35,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:30:35,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-25 05:30:35,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-09-25 05:30:35,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-25 05:30:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 254 transitions. [2020-09-25 05:30:35,533 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 254 transitions. Word has length 220 [2020-09-25 05:30:35,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:35,533 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 254 transitions. [2020-09-25 05:30:35,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:30:35,534 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 254 transitions. [2020-09-25 05:30:35,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-25 05:30:35,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:35,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:35,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 05:30:35,536 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:35,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:35,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2086033285, now seen corresponding path program 1 times [2020-09-25 05:30:35,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:35,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277776744] [2020-09-25 05:30:35,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:35,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:35,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:36,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 05:30:36,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:30:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 947 [2020-09-25 05:30:36,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:36,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:30:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 220 [2020-09-25 05:30:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:30:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:36,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:36,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:36,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:36,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:36,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:36,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:36,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:36,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:36,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:36,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:36,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:30:36,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:36,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:36,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:36,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:36,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:36,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:36,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:36,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:36,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:36,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:36,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:36,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:30:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:36,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:36,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 05:30:36,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:36,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 05:30:36,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:36,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 05:30:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:36,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:30:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:36,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:36,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:30:36,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:36,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:30:36,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:36,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:36,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:30:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:36,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:36,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:30:36,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:36,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:36,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:36,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:36,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:36,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:36,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:36,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:36,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:30:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:36,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:36,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:36,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:36,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:36,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:36,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:36,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:36,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:30:37,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:37,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277776744] [2020-09-25 05:30:37,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:37,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 05:30:37,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564045621] [2020-09-25 05:30:37,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 05:30:37,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:37,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 05:30:37,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:30:37,007 INFO L87 Difference]: Start difference. First operand 250 states and 254 transitions. Second operand 12 states. [2020-09-25 05:30:37,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:37,646 INFO L93 Difference]: Finished difference Result 260 states and 263 transitions. [2020-09-25 05:30:37,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 05:30:37,647 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 223 [2020-09-25 05:30:37,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:37,650 INFO L225 Difference]: With dead ends: 260 [2020-09-25 05:30:37,650 INFO L226 Difference]: Without dead ends: 250 [2020-09-25 05:30:37,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-09-25 05:30:37,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-25 05:30:37,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-09-25 05:30:37,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-25 05:30:37,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 253 transitions. [2020-09-25 05:30:37,661 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 253 transitions. Word has length 223 [2020-09-25 05:30:37,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:37,662 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 253 transitions. [2020-09-25 05:30:37,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 05:30:37,662 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 253 transitions. [2020-09-25 05:30:37,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 05:30:37,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:37,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:37,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 05:30:37,664 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:37,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:37,665 INFO L82 PathProgramCache]: Analyzing trace with hash 795376417, now seen corresponding path program 1 times [2020-09-25 05:30:37,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:37,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73593750] [2020-09-25 05:30:37,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:37,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:37,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:38,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:39,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:39,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 05:30:39,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:30:39,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1692 [2020-09-25 05:30:39,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:39,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:39,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:39,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-25 05:30:39,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 05:30:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:39,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:39,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:39,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:39,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:39,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:39,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:39,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:39,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:39,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:39,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:39,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:39,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:39,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:39,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:30:39,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:39,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:39,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:39,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:30:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:39,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:39,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:39,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:39,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:39,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:39,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:30:39,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:39,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:30:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:39,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:39,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:39,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 05:30:39,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:39,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 05:30:39,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:39,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:39,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:39,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:39,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 05:30:39,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:39,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:30:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:39,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:39,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:39,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:30:39,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:39,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:39,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:39,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:39,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:39,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:39,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:39,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:39,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:30:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:39,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:39,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:39,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:30:39,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:39,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:39,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:39,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:39,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:30:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:39,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:39,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:39,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:39,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:39,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:39,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:39,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:39,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:39,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:39,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:39,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:39,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73593750] [2020-09-25 05:30:39,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:39,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:30:39,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120366315] [2020-09-25 05:30:39,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:30:39,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:39,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:30:39,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:30:39,761 INFO L87 Difference]: Start difference. First operand 250 states and 253 transitions. Second operand 9 states. [2020-09-25 05:30:40,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:40,795 INFO L93 Difference]: Finished difference Result 417 states and 422 transitions. [2020-09-25 05:30:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 05:30:40,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 224 [2020-09-25 05:30:40,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:40,798 INFO L225 Difference]: With dead ends: 417 [2020-09-25 05:30:40,798 INFO L226 Difference]: Without dead ends: 407 [2020-09-25 05:30:40,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:30:40,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-25 05:30:40,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 402. [2020-09-25 05:30:40,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 05:30:40,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 407 transitions. [2020-09-25 05:30:40,818 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 407 transitions. Word has length 224 [2020-09-25 05:30:40,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:40,818 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 407 transitions. [2020-09-25 05:30:40,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:30:40,819 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 407 transitions. [2020-09-25 05:30:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 05:30:40,820 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:40,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:40,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 05:30:40,821 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:40,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:40,821 INFO L82 PathProgramCache]: Analyzing trace with hash 273790532, now seen corresponding path program 1 times [2020-09-25 05:30:40,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:40,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890317851] [2020-09-25 05:30:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:40,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:41,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:41,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:41,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-25 05:30:41,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:41,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-09-25 05:30:41,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:41,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:41,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:30:41,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 05:30:41,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:30:41,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:41,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:41,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:41,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:41,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:41,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:41,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:41,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:41,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:41,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:41,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:41,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:41,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:41,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:41,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:41,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:41,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:30:41,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:41,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:41,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:41,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:41,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:41,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:41,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 05:30:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:41,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:41,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:41,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:41,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:41,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:41,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:41,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:41,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:41,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:41,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:41,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:41,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 05:30:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:41,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:41,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:41,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:41,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 05:30:41,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:41,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 05:30:41,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:41,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 05:30:41,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:41,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:30:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:41,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:41,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:41,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:30:41,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:41,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:30:41,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:41,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:41,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:41,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:41,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:41,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:41,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:30:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:41,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:41,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:41,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:30:41,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:41,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:30:41,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:41,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:41,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:42,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:30:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:42,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:42,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:42,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:42,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:42,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:30:42,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:42,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:42,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:42,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:42,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:42,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:42,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890317851] [2020-09-25 05:30:42,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:42,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 05:30:42,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345467177] [2020-09-25 05:30:42,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 05:30:42,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:42,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 05:30:42,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:30:42,070 INFO L87 Difference]: Start difference. First operand 402 states and 407 transitions. Second operand 13 states. [2020-09-25 05:30:43,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:43,021 INFO L93 Difference]: Finished difference Result 419 states and 424 transitions. [2020-09-25 05:30:43,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 05:30:43,021 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 226 [2020-09-25 05:30:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:43,024 INFO L225 Difference]: With dead ends: 419 [2020-09-25 05:30:43,024 INFO L226 Difference]: Without dead ends: 402 [2020-09-25 05:30:43,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-09-25 05:30:43,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-25 05:30:43,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2020-09-25 05:30:43,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 05:30:43,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 405 transitions. [2020-09-25 05:30:43,050 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 405 transitions. Word has length 226 [2020-09-25 05:30:43,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:43,051 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 405 transitions. [2020-09-25 05:30:43,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 05:30:43,051 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 405 transitions. [2020-09-25 05:30:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-25 05:30:43,053 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:30:43,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:30:43,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 05:30:43,054 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:30:43,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:30:43,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1143051315, now seen corresponding path program 1 times [2020-09-25 05:30:43,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:30:43,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718394212] [2020-09-25 05:30:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:30:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:43,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:43,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-25 05:30:43,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:43,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-09-25 05:30:43,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:43,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:43,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:43,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 226 [2020-09-25 05:30:43,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:30:43,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:43,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:30:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:43,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:43,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 05:30:43,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:43,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:30:43,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:43,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:43,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:43,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:43,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 05:30:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:43,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:43,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 05:30:43,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:43,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:30:43,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:43,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:43,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:43,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:43,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:43,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:43,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 05:30:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:43,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:43,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:30:43,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:43,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:43,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:43,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:43,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:43,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:43,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:43,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:43,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 05:30:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:43,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:43,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 05:30:43,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:43,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 05:30:43,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:43,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:43,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:30:43,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:43,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 05:30:43,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:30:43,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:30:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:43,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:43,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:30:43,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:43,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:30:43,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:43,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:43,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:43,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:30:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:43,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:43,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 05:30:43,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:43,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:30:43,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:43,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:43,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:43,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:43,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 05:30:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:43,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:43,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:43,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:30:43,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:30:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:30:43,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:43,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:30:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:30:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:30:43,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:43,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-25 05:30:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:30:43,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:44,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:30:44,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:30:44,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 05:30:44,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:30:44,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:30:44,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:30:44,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:30:44,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:30:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:30:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:30:44,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:30:44,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:30:44,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718394212] [2020-09-25 05:30:44,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:30:44,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 05:30:44,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146854482] [2020-09-25 05:30:44,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:30:44,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:30:44,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:30:44,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:30:44,066 INFO L87 Difference]: Start difference. First operand 402 states and 405 transitions. Second operand 11 states. [2020-09-25 05:30:44,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:30:44,521 INFO L93 Difference]: Finished difference Result 402 states and 405 transitions. [2020-09-25 05:30:44,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:30:44,522 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2020-09-25 05:30:44,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:30:44,523 INFO L225 Difference]: With dead ends: 402 [2020-09-25 05:30:44,523 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 05:30:44,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:30:44,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 05:30:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 05:30:44,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 05:30:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 05:30:44,525 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 245 [2020-09-25 05:30:44,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:30:44,526 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 05:30:44,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:30:44,526 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 05:30:44,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 05:30:44,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 05:30:44,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 05:30:46,292 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 34 [2020-09-25 05:30:46,453 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 39 [2020-09-25 05:30:46,643 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2020-09-25 05:30:46,933 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2020-09-25 05:30:47,103 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-09-25 05:30:47,305 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 36 [2020-09-25 05:30:47,464 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 23 [2020-09-25 05:30:47,690 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2020-09-25 05:30:47,952 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 25 [2020-09-25 05:30:48,097 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2020-09-25 05:30:48,264 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 39