/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:47:35,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:47:35,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:47:35,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:47:35,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:47:35,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:47:35,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:47:35,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:47:35,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:47:35,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:47:35,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:47:35,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:47:35,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:47:35,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:47:35,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:47:35,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:47:35,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:47:35,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:47:35,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:47:35,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:47:35,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:47:35,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:47:35,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:47:35,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:47:35,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:47:35,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:47:35,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:47:35,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:47:35,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:47:35,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:47:35,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:47:35,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:47:35,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:47:35,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:47:35,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:47:35,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:47:35,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:47:35,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:47:35,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:47:35,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:47:35,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:47:35,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:47:35,223 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:47:35,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:47:35,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:47:35,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:47:35,225 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:47:35,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:47:35,225 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:47:35,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:47:35,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:47:35,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:47:35,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:47:35,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:47:35,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:47:35,227 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:47:35,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:47:35,227 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:47:35,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:47:35,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:47:35,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:47:35,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:47:35,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:47:35,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:47:35,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:47:35,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:47:35,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:47:35,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:47:35,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:47:35,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:47:35,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:47:35,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:47:35,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:47:35,692 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:47:35,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:47:35,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:47:35,702 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:47:35,703 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-09-25 07:47:35,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a74f398ff/0605ae2a01734fc39ca1ca9e4dc36652/FLAGca307ebe8 [2020-09-25 07:47:36,312 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:47:36,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-09-25 07:47:36,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a74f398ff/0605ae2a01734fc39ca1ca9e4dc36652/FLAGca307ebe8 [2020-09-25 07:47:36,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a74f398ff/0605ae2a01734fc39ca1ca9e4dc36652 [2020-09-25 07:47:36,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:47:36,646 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:47:36,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:47:36,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:47:36,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:47:36,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:47:36" (1/1) ... [2020-09-25 07:47:36,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f546c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:36, skipping insertion in model container [2020-09-25 07:47:36,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:47:36" (1/1) ... [2020-09-25 07:47:36,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:47:36,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:47:37,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:47:37,010 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:47:37,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:47:37,197 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:47:37,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:37 WrapperNode [2020-09-25 07:47:37,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:47:37,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:47:37,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:47:37,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:47:37,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:37" (1/1) ... [2020-09-25 07:47:37,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:37" (1/1) ... [2020-09-25 07:47:37,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:37" (1/1) ... [2020-09-25 07:47:37,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:37" (1/1) ... [2020-09-25 07:47:37,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:37" (1/1) ... [2020-09-25 07:47:37,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:37" (1/1) ... [2020-09-25 07:47:37,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:37" (1/1) ... [2020-09-25 07:47:37,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:47:37,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:47:37,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:47:37,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:47:37,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:47:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:47:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:47:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-25 07:47:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-25 07:47:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-25 07:47:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:47:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-25 07:47:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-25 07:47:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-25 07:47:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-25 07:47:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-25 07:47:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-25 07:47:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-25 07:47:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:47:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 07:47:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:47:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 07:47:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-25 07:47:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-25 07:47:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-25 07:47:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-25 07:47:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-25 07:47:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-25 07:47:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-25 07:47:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-25 07:47:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-25 07:47:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:47:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-25 07:47:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:47:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:47:37,687 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:37,873 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-09-25 07:47:37,873 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-09-25 07:47:37,875 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:37,953 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2020-09-25 07:47:37,953 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2020-09-25 07:47:37,988 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:38,038 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-25 07:47:38,039 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-25 07:47:38,059 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:38,278 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-25 07:47:38,278 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-25 07:47:38,309 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:47:38,310 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:47:38,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:47:38 BoogieIcfgContainer [2020-09-25 07:47:38,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:47:38,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:47:38,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:47:38,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:47:38,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:47:36" (1/3) ... [2020-09-25 07:47:38,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad1f5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:47:38, skipping insertion in model container [2020-09-25 07:47:38,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:37" (2/3) ... [2020-09-25 07:47:38,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad1f5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:47:38, skipping insertion in model container [2020-09-25 07:47:38,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:47:38" (3/3) ... [2020-09-25 07:47:38,338 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-09-25 07:47:38,350 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:47:38,366 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:47:38,390 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:47:38,437 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:47:38,437 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:47:38,437 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:47:38,437 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:47:38,437 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:47:38,437 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:47:38,438 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:47:38,438 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:47:38,469 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states. [2020-09-25 07:47:38,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 07:47:38,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:38,483 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 07:47:38,484 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:38,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:38,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1164793869, now seen corresponding path program 1 times [2020-09-25 07:47:38,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:38,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561731579] [2020-09-25 07:47:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:38,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:39,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:39,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:39,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:39,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:39,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:40,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:40,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 07:47:40,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:47:40,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1465 [2020-09-25 07:47:40,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:40,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:40,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:40,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 07:47:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:47:40,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:47:40,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:40,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:40,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:40,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:47:40,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:40,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:47:40,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:40,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:40,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:40,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:40,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:47:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:40,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:40,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:40,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:40,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:40,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:47:40,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:40,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:40,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 07:47:40,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:47:40,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:40,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561731579] [2020-09-25 07:47:40,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:40,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:47:40,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222413631] [2020-09-25 07:47:40,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:47:40,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:40,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:47:40,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:47:40,573 INFO L87 Difference]: Start difference. First operand 366 states. Second operand 5 states. [2020-09-25 07:47:41,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:41,715 INFO L93 Difference]: Finished difference Result 666 states and 826 transitions. [2020-09-25 07:47:41,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:47:41,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2020-09-25 07:47:41,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:41,753 INFO L225 Difference]: With dead ends: 666 [2020-09-25 07:47:41,754 INFO L226 Difference]: Without dead ends: 382 [2020-09-25 07:47:41,767 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 07:47:41,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-09-25 07:47:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 351. [2020-09-25 07:47:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-09-25 07:47:41,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 401 transitions. [2020-09-25 07:47:41,862 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 401 transitions. Word has length 83 [2020-09-25 07:47:41,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:41,863 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 401 transitions. [2020-09-25 07:47:41,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:47:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 401 transitions. [2020-09-25 07:47:41,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-25 07:47:41,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:41,876 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 07:47:41,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:47:41,877 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:41,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:41,877 INFO L82 PathProgramCache]: Analyzing trace with hash 192642435, now seen corresponding path program 1 times [2020-09-25 07:47:41,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:41,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275009987] [2020-09-25 07:47:41,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:42,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:42,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:42,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 07:47:42,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:42,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-09-25 07:47:42,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:42,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:47:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-09-25 07:47:42,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 07:47:42,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:42,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:42,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:42,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:42,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:47:42,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:42,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:47:42,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:42,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:42,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:42,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:47:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:42,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:42,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:42,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:42,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:42,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:47:42,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:42,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:42,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:42,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:42,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:42,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:42,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:47:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:42,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:42,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:42,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:42,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:42,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:47:42,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:42,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:42,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:42,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:42,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:47:42,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:42,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:42,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275009987] [2020-09-25 07:47:42,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:42,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:47:42,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305472015] [2020-09-25 07:47:42,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:47:42,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:42,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:47:42,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:47:42,586 INFO L87 Difference]: Start difference. First operand 351 states and 401 transitions. Second operand 6 states. [2020-09-25 07:47:44,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:44,003 INFO L93 Difference]: Finished difference Result 588 states and 683 transitions. [2020-09-25 07:47:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:47:44,004 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-09-25 07:47:44,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:44,009 INFO L225 Difference]: With dead ends: 588 [2020-09-25 07:47:44,009 INFO L226 Difference]: Without dead ends: 502 [2020-09-25 07:47:44,011 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 07:47:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-09-25 07:47:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 463. [2020-09-25 07:47:44,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-25 07:47:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 527 transitions. [2020-09-25 07:47:44,052 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 527 transitions. Word has length 146 [2020-09-25 07:47:44,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:44,052 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 527 transitions. [2020-09-25 07:47:44,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:47:44,053 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 527 transitions. [2020-09-25 07:47:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:47:44,055 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:44,055 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 07:47:44,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:47:44,056 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:44,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:44,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1733953169, now seen corresponding path program 1 times [2020-09-25 07:47:44,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:44,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092189529] [2020-09-25 07:47:44,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:44,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:44,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:44,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-25 07:47:44,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:44,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 07:47:44,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:44,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:47:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 07:47:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 07:47:44,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:44,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:44,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:44,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:44,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:47:44,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:44,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:47:44,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:44,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:44,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:47:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:44,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:44,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:44,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:44,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:44,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:47:44,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:44,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:44,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:44,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:44,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:44,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:44,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:47:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:44,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:44,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:44,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:44,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:44,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:47:44,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:44,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:44,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:44,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:44,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:47:44,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:44,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092189529] [2020-09-25 07:47:44,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:44,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:47:44,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663246554] [2020-09-25 07:47:44,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:47:44,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:44,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:47:44,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:47:44,728 INFO L87 Difference]: Start difference. First operand 463 states and 527 transitions. Second operand 6 states. [2020-09-25 07:47:45,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:45,856 INFO L93 Difference]: Finished difference Result 665 states and 762 transitions. [2020-09-25 07:47:45,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:47:45,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2020-09-25 07:47:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:45,866 INFO L225 Difference]: With dead ends: 665 [2020-09-25 07:47:45,867 INFO L226 Difference]: Without dead ends: 556 [2020-09-25 07:47:45,868 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 07:47:45,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-09-25 07:47:45,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 502. [2020-09-25 07:47:45,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-25 07:47:45,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 574 transitions. [2020-09-25 07:47:45,902 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 574 transitions. Word has length 148 [2020-09-25 07:47:45,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:45,903 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 574 transitions. [2020-09-25 07:47:45,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:47:45,903 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 574 transitions. [2020-09-25 07:47:45,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 07:47:45,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:45,907 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 07:47:45,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:47:45,908 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:45,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:45,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1023389875, now seen corresponding path program 1 times [2020-09-25 07:47:45,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:45,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728304673] [2020-09-25 07:47:45,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:45,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:46,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:46,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 07:47:46,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:46,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-09-25 07:47:46,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:46,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:46,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:47:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 07:47:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:47:46,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:46,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:46,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:46,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:46,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:47:46,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:46,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:47:46,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:46,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:46,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:46,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:46,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:46,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:46,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:47:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:46,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:46,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:46,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:46,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:46,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:47:46,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:46,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:46,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:46,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:46,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:46,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:47:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:46,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:46,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:46,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:46,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:46,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:47:46,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:46,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:46,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:46,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:46,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:46,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:46,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:46,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728304673] [2020-09-25 07:47:46,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:46,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:47:46,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921264262] [2020-09-25 07:47:46,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:47:46,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:46,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:47:46,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:47:46,674 INFO L87 Difference]: Start difference. First operand 502 states and 574 transitions. Second operand 6 states. [2020-09-25 07:47:47,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:47,750 INFO L93 Difference]: Finished difference Result 506 states and 577 transitions. [2020-09-25 07:47:47,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:47:47,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 07:47:47,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:47,756 INFO L225 Difference]: With dead ends: 506 [2020-09-25 07:47:47,756 INFO L226 Difference]: Without dead ends: 503 [2020-09-25 07:47:47,757 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 07:47:47,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-25 07:47:47,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 502. [2020-09-25 07:47:47,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-25 07:47:47,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 573 transitions. [2020-09-25 07:47:47,787 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 573 transitions. Word has length 172 [2020-09-25 07:47:47,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:47,788 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 573 transitions. [2020-09-25 07:47:47,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:47:47,788 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 573 transitions. [2020-09-25 07:47:47,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 07:47:47,791 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:47,792 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 07:47:47,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:47:47,792 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:47,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:47,793 INFO L82 PathProgramCache]: Analyzing trace with hash -734364592, now seen corresponding path program 1 times [2020-09-25 07:47:47,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:47,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109943113] [2020-09-25 07:47:47,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:47,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:48,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:48,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:48,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 07:47:48,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:47:48,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 866 [2020-09-25 07:47:48,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:48,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 07:47:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:47:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:48,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:48,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:48,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:48,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:47:48,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:48,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:47:48,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:48,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:48,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:48,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:48,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:48,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:48,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:47:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:48,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:48,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:48,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:48,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:48,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:47:48,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:48,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:48,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:48,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:48,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:48,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:48,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:47:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:48,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:48,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:48,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:48,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:48,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:47:48,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:48,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:48,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:48,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:47:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:48,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:48,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:48,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:47:48,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:48,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:47:48,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:48,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:48,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:48,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:47:48,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:47:48,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:48,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109943113] [2020-09-25 07:47:48,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:48,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:47:48,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799309456] [2020-09-25 07:47:48,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:47:48,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:48,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:47:48,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:47:48,988 INFO L87 Difference]: Start difference. First operand 502 states and 573 transitions. Second operand 8 states. [2020-09-25 07:47:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:50,295 INFO L93 Difference]: Finished difference Result 580 states and 662 transitions. [2020-09-25 07:47:50,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:47:50,296 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 186 [2020-09-25 07:47:50,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:50,299 INFO L225 Difference]: With dead ends: 580 [2020-09-25 07:47:50,299 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 07:47:50,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:47:50,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 07:47:50,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 451. [2020-09-25 07:47:50,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-09-25 07:47:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 511 transitions. [2020-09-25 07:47:50,330 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 511 transitions. Word has length 186 [2020-09-25 07:47:50,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:50,331 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 511 transitions. [2020-09-25 07:47:50,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:47:50,331 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 511 transitions. [2020-09-25 07:47:50,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 07:47:50,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:50,334 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 07:47:50,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:47:50,334 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:50,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:50,335 INFO L82 PathProgramCache]: Analyzing trace with hash -617767856, now seen corresponding path program 1 times [2020-09-25 07:47:50,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:50,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506129579] [2020-09-25 07:47:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:50,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:50,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:51,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:51,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:52,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:53,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:53,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 07:47:53,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:47:53,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3143 [2020-09-25 07:47:53,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:53,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:53,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 07:47:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 07:47:53,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:53,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:53,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:53,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:53,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:47:53,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:53,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:47:53,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:53,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:53,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:53,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:53,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:53,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:53,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:47:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:53,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:53,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:53,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:53,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:53,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:47:53,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:53,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:53,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:53,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:47:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:53,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:53,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:53,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:53,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:53,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:47:53,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:53,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:53,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:53,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:53,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:47:53,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:53,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 07:47:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:53,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:53,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:53,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:47:53,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:53,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 07:47:53,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:53,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 07:47:53,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:53,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 07:47:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:53,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:53,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:53,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:47:53,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:53,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:47:53,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:53,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:53,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:54,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:54,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506129579] [2020-09-25 07:47:54,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:54,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:47:54,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561406033] [2020-09-25 07:47:54,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:47:54,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:54,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:47:54,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:47:54,019 INFO L87 Difference]: Start difference. First operand 451 states and 511 transitions. Second operand 8 states. [2020-09-25 07:47:55,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:55,358 INFO L93 Difference]: Finished difference Result 460 states and 522 transitions. [2020-09-25 07:47:55,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:47:55,359 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2020-09-25 07:47:55,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:55,361 INFO L225 Difference]: With dead ends: 460 [2020-09-25 07:47:55,361 INFO L226 Difference]: Without dead ends: 280 [2020-09-25 07:47:55,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:47:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-25 07:47:55,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-09-25 07:47:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-25 07:47:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 293 transitions. [2020-09-25 07:47:55,375 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 293 transitions. Word has length 191 [2020-09-25 07:47:55,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:55,376 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 293 transitions. [2020-09-25 07:47:55,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:47:55,376 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 293 transitions. [2020-09-25 07:47:55,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 07:47:55,379 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:55,379 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 07:47:55,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:47:55,380 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:55,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:55,380 INFO L82 PathProgramCache]: Analyzing trace with hash -836248096, now seen corresponding path program 1 times [2020-09-25 07:47:55,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:55,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606308637] [2020-09-25 07:47:55,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:55,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:55,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:55,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-25 07:47:55,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:55,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 07:47:55,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:55,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:55,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:55,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-25 07:47:55,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:47:55,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:47:55,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:55,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:55,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:55,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:47:55,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:55,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:47:55,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:55,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:55,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:55,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:55,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:47:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:55,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:55,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:55,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:55,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:55,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:47:55,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:55,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:55,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:55,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:55,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:55,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:55,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:47:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:55,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:55,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:55,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:55,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:47:55,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:55,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:55,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:55,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:55,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 07:47:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:55,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:55,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:55,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:47:55,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:55,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:47:55,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:55,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:55,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:55,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:47:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:55,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:55,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:55,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:47:55,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:55,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:47:55,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:55,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:55,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:55,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:55,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 07:47:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:55,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:55,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:55,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:47:55,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:55,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:47:55,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:55,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:55,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:55,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:55,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:47:55,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:55,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:55,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606308637] [2020-09-25 07:47:55,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:55,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:47:55,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723277087] [2020-09-25 07:47:55,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:47:55,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:55,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:47:55,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:47:55,993 INFO L87 Difference]: Start difference. First operand 280 states and 293 transitions. Second operand 8 states. [2020-09-25 07:47:56,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:56,337 INFO L93 Difference]: Finished difference Result 325 states and 343 transitions. [2020-09-25 07:47:56,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:47:56,337 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-09-25 07:47:56,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:56,339 INFO L225 Difference]: With dead ends: 325 [2020-09-25 07:47:56,340 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 07:47:56,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:47:56,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 07:47:56,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2020-09-25 07:47:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 07:47:56,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 287 transitions. [2020-09-25 07:47:56,353 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 287 transitions. Word has length 200 [2020-09-25 07:47:56,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:56,354 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 287 transitions. [2020-09-25 07:47:56,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:47:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 287 transitions. [2020-09-25 07:47:56,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 07:47:56,357 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:56,357 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 07:47:56,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:47:56,357 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:56,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:56,358 INFO L82 PathProgramCache]: Analyzing trace with hash -602224561, now seen corresponding path program 1 times [2020-09-25 07:47:56,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:56,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327897302] [2020-09-25 07:47:56,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:56,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:56,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:57,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:57,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 07:47:57,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:47:57,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1359 [2020-09-25 07:47:57,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:57,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:47:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 07:47:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-25 07:47:57,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:57,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:57,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:57,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:57,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:47:57,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:57,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:47:57,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:57,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:57,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:57,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:57,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:57,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:47:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:57,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:57,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:57,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:57,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:57,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 07:47:57,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:57,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:57,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:47:57,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:57,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:47:57,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:58,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:47:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:58,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:58,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:58,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:58,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:47:58,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:58,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:58,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:58,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:58,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:47:58,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:58,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:47:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:58,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:58,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 07:47:58,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 07:47:58,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:58,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:58,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:47:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 07:47:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:47:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:58,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:47:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:58,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:58,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:47:58,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:58,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:47:58,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:58,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:58,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:58,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:58,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:58,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:58,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:47:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:58,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:58,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:47:58,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:58,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:47:58,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:58,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:58,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:58,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:47:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:58,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:58,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:47:58,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:58,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:47:58,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:58,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:58,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:58,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:58,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:47:58,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:58,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327897302] [2020-09-25 07:47:58,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:58,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 07:47:58,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761233590] [2020-09-25 07:47:58,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 07:47:58,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:58,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 07:47:58,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:47:58,292 INFO L87 Difference]: Start difference. First operand 276 states and 287 transitions. Second operand 12 states. [2020-09-25 07:47:59,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:59,496 INFO L93 Difference]: Finished difference Result 321 states and 337 transitions. [2020-09-25 07:47:59,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 07:47:59,496 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 216 [2020-09-25 07:47:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:59,500 INFO L225 Difference]: With dead ends: 321 [2020-09-25 07:47:59,500 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 07:47:59,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2020-09-25 07:47:59,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 07:47:59,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-09-25 07:47:59,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-25 07:47:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 284 transitions. [2020-09-25 07:47:59,520 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 284 transitions. Word has length 216 [2020-09-25 07:47:59,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:59,521 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 284 transitions. [2020-09-25 07:47:59,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 07:47:59,522 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 284 transitions. [2020-09-25 07:47:59,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 07:47:59,527 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:59,527 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 07:47:59,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:47:59,528 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:59,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:59,529 INFO L82 PathProgramCache]: Analyzing trace with hash -2077149002, now seen corresponding path program 1 times [2020-09-25 07:47:59,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:59,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47965140] [2020-09-25 07:47:59,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:59,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:59,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:00,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:01,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-25 07:48:01,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:01,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1753 [2020-09-25 07:48:01,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:01,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:01,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:01,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-09-25 07:48:01,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:48:01,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:01,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:01,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:01,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:48:01,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:01,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:48:01,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:01,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:01,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:01,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:01,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:01,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:01,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:48:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:01,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:01,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:01,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:01,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:48:01,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:01,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:01,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:01,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:01,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:01,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:01,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:48:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:01,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:01,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:01,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:01,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:48:01,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:01,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:01,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:01,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:48:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:01,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:01,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 07:48:01,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:01,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 07:48:01,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:01,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:01,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:01,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 07:48:01,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:48:01,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:01,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:48:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:01,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:01,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:48:01,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:01,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:48:01,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:01,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:01,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:01,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:48:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:01,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:01,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:48:01,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:01,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:48:01,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:01,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:01,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:01,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:48:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:01,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:01,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:48:01,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:01,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:01,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:01,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:01,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:01,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:01,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:01,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47965140] [2020-09-25 07:48:01,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:01,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:48:01,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365157803] [2020-09-25 07:48:01,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:48:01,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:01,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:48:01,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:48:01,771 INFO L87 Difference]: Start difference. First operand 274 states and 284 transitions. Second operand 9 states. [2020-09-25 07:48:02,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:02,428 INFO L93 Difference]: Finished difference Result 329 states and 345 transitions. [2020-09-25 07:48:02,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:48:02,428 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 218 [2020-09-25 07:48:02,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:02,431 INFO L225 Difference]: With dead ends: 329 [2020-09-25 07:48:02,431 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 07:48:02,431 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 07:48:02,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 07:48:02,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 277. [2020-09-25 07:48:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 07:48:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 287 transitions. [2020-09-25 07:48:02,444 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 287 transitions. Word has length 218 [2020-09-25 07:48:02,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:02,444 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 287 transitions. [2020-09-25 07:48:02,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:48:02,445 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 287 transitions. [2020-09-25 07:48:02,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-25 07:48:02,447 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:02,448 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 07:48:02,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:48:02,448 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:02,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:02,448 INFO L82 PathProgramCache]: Analyzing trace with hash 666432309, now seen corresponding path program 1 times [2020-09-25 07:48:02,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:02,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654861362] [2020-09-25 07:48:02,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:02,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:02,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:03,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:03,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:05,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 07:48:05,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:05,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3343 [2020-09-25 07:48:05,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:05,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:05,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:05,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 237 [2020-09-25 07:48:05,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:48:05,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:05,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:05,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:05,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:48:05,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:05,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:48:05,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:05,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:05,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:05,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:05,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:48:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:05,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:05,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:05,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:05,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:48:05,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:05,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:05,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:05,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:05,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:48:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:05,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:05,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:05,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:05,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:48:05,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:05,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:05,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:06,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:48:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:06,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:06,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:06,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 07:48:06,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:06,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 07:48:06,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:06,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:06,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:06,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:06,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:06,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:06,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:48:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:06,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:06,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:06,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:48:06,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:06,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:06,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:06,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:48:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:06,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:06,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:06,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:48:06,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:06,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:48:06,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:06,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:06,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:06,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:06,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:06,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:06,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:48:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:06,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:06,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:06,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:48:06,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:06,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:06,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:06,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:06,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:06,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:06,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654861362] [2020-09-25 07:48:06,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:06,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:48:06,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789239703] [2020-09-25 07:48:06,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:48:06,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:06,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:48:06,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:48:06,169 INFO L87 Difference]: Start difference. First operand 277 states and 287 transitions. Second operand 9 states. [2020-09-25 07:48:06,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:06,911 INFO L93 Difference]: Finished difference Result 299 states and 310 transitions. [2020-09-25 07:48:06,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:48:06,911 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 219 [2020-09-25 07:48:06,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:06,913 INFO L225 Difference]: With dead ends: 299 [2020-09-25 07:48:06,914 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 07:48:06,914 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 07:48:06,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 07:48:06,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 279. [2020-09-25 07:48:06,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-09-25 07:48:06,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 288 transitions. [2020-09-25 07:48:06,926 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 288 transitions. Word has length 219 [2020-09-25 07:48:06,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:06,926 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 288 transitions. [2020-09-25 07:48:06,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:48:06,926 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 288 transitions. [2020-09-25 07:48:06,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-25 07:48:06,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:06,930 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 07:48:06,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 07:48:06,930 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:06,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:06,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1112255828, now seen corresponding path program 1 times [2020-09-25 07:48:06,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:06,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781629850] [2020-09-25 07:48:06,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:07,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:08,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:11,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 07:48:11,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:48:11,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4263 [2020-09-25 07:48:11,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:11,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:11,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:48:11,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 07:48:11,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-09-25 07:48:11,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:11,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:11,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:11,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:48:11,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:48:11,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:11,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:11,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:11,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:48:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:11,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:11,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:11,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:11,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:48:11,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:11,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:11,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:11,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:11,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:48:11,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:11,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:48:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:11,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:11,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:11,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:11,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:48:11,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:11,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:48:11,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:11,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:48:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:11,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:11,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 07:48:11,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:11,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 07:48:11,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:11,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 07:48:11,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:11,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:48:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:11,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:11,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:48:11,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:11,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:48:11,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:11,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:11,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:11,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:11,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:48:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:11,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:11,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:48:11,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:11,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:48:11,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:11,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:11,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:11,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:48:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:11,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:11,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:48:11,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:11,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:11,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:11,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:11,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:11,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1781629850] [2020-09-25 07:48:11,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:11,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 07:48:11,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379028507] [2020-09-25 07:48:11,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 07:48:11,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:11,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 07:48:11,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:48:11,859 INFO L87 Difference]: Start difference. First operand 279 states and 288 transitions. Second operand 13 states. [2020-09-25 07:48:12,122 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-09-25 07:48:12,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:12,493 INFO L93 Difference]: Finished difference Result 282 states and 290 transitions. [2020-09-25 07:48:12,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 07:48:12,493 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 220 [2020-09-25 07:48:12,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:12,495 INFO L225 Difference]: With dead ends: 282 [2020-09-25 07:48:12,495 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 07:48:12,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-09-25 07:48:12,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 07:48:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-09-25 07:48:12,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-25 07:48:12,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 260 transitions. [2020-09-25 07:48:12,507 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 260 transitions. Word has length 220 [2020-09-25 07:48:12,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:12,507 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 260 transitions. [2020-09-25 07:48:12,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 07:48:12,508 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 260 transitions. [2020-09-25 07:48:12,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-25 07:48:12,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:12,509 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 07:48:12,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 07:48:12,510 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:12,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:12,510 INFO L82 PathProgramCache]: Analyzing trace with hash -2086033285, now seen corresponding path program 1 times [2020-09-25 07:48:12,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:12,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551786150] [2020-09-25 07:48:12,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:12,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:12,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:13,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 07:48:13,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:13,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-09-25 07:48:13,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:13,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 220 [2020-09-25 07:48:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:48:13,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:13,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:13,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:13,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:48:13,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:13,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:48:13,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:13,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:13,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:13,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:48:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:13,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:13,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:13,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:13,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:48:13,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:13,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:13,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:13,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:48:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:13,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:13,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:13,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:13,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:13,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:13,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:13,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:13,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:13,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:13,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:13,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:48:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:13,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:13,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 07:48:13,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:13,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 07:48:13,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:13,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 07:48:13,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:13,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:48:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:13,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:13,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:48:13,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:13,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:48:13,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:13,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:13,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:13,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:48:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:13,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:13,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:48:13,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:13,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:48:13,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:13,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:13,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:13,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:13,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:48:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:13,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:13,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:48:13,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:13,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:13,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:13,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:14,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:14,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:14,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551786150] [2020-09-25 07:48:14,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:14,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 07:48:14,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129478529] [2020-09-25 07:48:14,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 07:48:14,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:14,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 07:48:14,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:48:14,072 INFO L87 Difference]: Start difference. First operand 254 states and 260 transitions. Second operand 12 states. [2020-09-25 07:48:14,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:14,638 INFO L93 Difference]: Finished difference Result 264 states and 269 transitions. [2020-09-25 07:48:14,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:48:14,639 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 223 [2020-09-25 07:48:14,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:14,641 INFO L225 Difference]: With dead ends: 264 [2020-09-25 07:48:14,641 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 07:48:14,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:48:14,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 07:48:14,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-09-25 07:48:14,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-25 07:48:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 259 transitions. [2020-09-25 07:48:14,655 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 259 transitions. Word has length 223 [2020-09-25 07:48:14,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:14,656 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 259 transitions. [2020-09-25 07:48:14,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 07:48:14,656 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 259 transitions. [2020-09-25 07:48:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 07:48:14,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:14,658 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 07:48:14,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 07:48:14,658 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:14,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:14,660 INFO L82 PathProgramCache]: Analyzing trace with hash 795376417, now seen corresponding path program 1 times [2020-09-25 07:48:14,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:14,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765093197] [2020-09-25 07:48:14,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:14,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:15,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:16,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 07:48:16,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:48:16,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1671 [2020-09-25 07:48:16,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:16,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-25 07:48:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 07:48:16,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:16,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:16,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:16,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:48:16,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:16,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:48:16,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:16,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:16,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:16,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:16,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:16,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:48:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:16,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:16,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:16,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:48:16,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:16,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:16,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:16,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:48:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:16,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:16,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:16,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:16,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:48:16,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:16,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:48:16,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:16,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:48:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:16,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:16,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 07:48:16,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:16,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 07:48:16,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:16,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:16,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:16,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:16,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 07:48:16,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:16,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:48:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:16,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:16,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:48:16,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:16,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:48:16,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:16,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:16,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:16,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:48:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:16,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:16,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:48:16,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:16,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:48:16,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:16,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:16,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:16,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:16,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:16,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:16,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:48:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:16,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:16,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:48:16,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:16,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:16,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:16,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:16,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:16,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:16,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:16,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:16,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:16,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765093197] [2020-09-25 07:48:16,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:16,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:48:16,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779564516] [2020-09-25 07:48:16,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:48:16,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:16,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:48:16,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:48:16,714 INFO L87 Difference]: Start difference. First operand 254 states and 259 transitions. Second operand 9 states. [2020-09-25 07:48:17,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:17,341 INFO L93 Difference]: Finished difference Result 427 states and 435 transitions. [2020-09-25 07:48:17,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:48:17,341 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 224 [2020-09-25 07:48:17,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:17,344 INFO L225 Difference]: With dead ends: 427 [2020-09-25 07:48:17,344 INFO L226 Difference]: Without dead ends: 417 [2020-09-25 07:48:17,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:48:17,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-09-25 07:48:17,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 409. [2020-09-25 07:48:17,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-09-25 07:48:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 418 transitions. [2020-09-25 07:48:17,374 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 418 transitions. Word has length 224 [2020-09-25 07:48:17,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:17,375 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 418 transitions. [2020-09-25 07:48:17,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:48:17,375 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 418 transitions. [2020-09-25 07:48:17,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 07:48:17,377 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:17,377 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] [2020-09-25 07:48:17,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 07:48:17,378 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:17,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:17,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1267646381, now seen corresponding path program 1 times [2020-09-25 07:48:17,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:17,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591853023] [2020-09-25 07:48:17,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:17,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:17,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:17,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 07:48:17,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:17,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-09-25 07:48:17,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:17,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:17,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:17,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-25 07:48:17,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 07:48:17,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:17,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:17,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:17,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:17,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:48:17,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:17,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:48:17,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:17,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:17,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:17,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:48:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:17,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:17,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:17,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:17,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:17,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:48:17,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:17,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:17,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:17,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:17,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:17,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:17,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:48:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:17,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:17,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:17,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:17,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:17,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:48:17,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:17,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:17,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:18,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:48:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:18,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:18,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 07:48:18,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 07:48:18,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:18,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:48:18,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:18,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:48:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:18,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:18,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:48:18,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:18,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:48:18,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:18,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:18,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:48:18,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:18,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:48:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:18,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:18,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:48:18,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:18,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:48:18,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:18,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:18,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:18,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:48:18,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 07:48:18,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:48:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:18,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:18,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:48:18,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:18,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:18,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:48:18,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:18,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:18,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591853023] [2020-09-25 07:48:18,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:18,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:48:18,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121353753] [2020-09-25 07:48:18,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:48:18,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:18,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:48:18,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:48:18,187 INFO L87 Difference]: Start difference. First operand 409 states and 418 transitions. Second operand 9 states. [2020-09-25 07:48:18,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:18,957 INFO L93 Difference]: Finished difference Result 448 states and 459 transitions. [2020-09-25 07:48:18,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:48:18,960 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 225 [2020-09-25 07:48:18,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:18,963 INFO L225 Difference]: With dead ends: 448 [2020-09-25 07:48:18,963 INFO L226 Difference]: Without dead ends: 402 [2020-09-25 07:48:18,964 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 07:48:18,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-25 07:48:18,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2020-09-25 07:48:18,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 07:48:18,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 407 transitions. [2020-09-25 07:48:18,982 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 407 transitions. Word has length 225 [2020-09-25 07:48:18,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:18,982 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 407 transitions. [2020-09-25 07:48:18,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:48:18,983 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 407 transitions. [2020-09-25 07:48:18,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 07:48:18,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:18,985 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 07:48:18,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 07:48:18,985 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:18,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:18,985 INFO L82 PathProgramCache]: Analyzing trace with hash 273790532, now seen corresponding path program 1 times [2020-09-25 07:48:18,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:18,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831791794] [2020-09-25 07:48:18,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-25 07:48:19,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:19,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 524 [2020-09-25 07:48:19,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:48:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 07:48:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:48:19,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:19,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:48:19,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:19,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:48:19,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:19,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:19,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:48:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:19,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:19,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:48:19,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:19,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:19,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:19,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:48:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:19,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:19,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:19,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:19,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:19,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 07:48:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 07:48:19,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:19,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 07:48:19,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 07:48:19,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:19,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:48:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:48:19,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:19,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:48:19,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:19,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:48:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:48:19,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:48:19,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:20,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:48:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:20,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:20,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:20,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:48:20,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:20,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:20,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:20,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:20,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:20,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:20,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:20,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:20,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:20,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831791794] [2020-09-25 07:48:20,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:20,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 07:48:20,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928142539] [2020-09-25 07:48:20,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 07:48:20,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:20,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 07:48:20,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:48:20,054 INFO L87 Difference]: Start difference. First operand 402 states and 407 transitions. Second operand 13 states. [2020-09-25 07:48:20,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:20,922 INFO L93 Difference]: Finished difference Result 419 states and 424 transitions. [2020-09-25 07:48:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:48:20,923 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 226 [2020-09-25 07:48:20,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:20,926 INFO L225 Difference]: With dead ends: 419 [2020-09-25 07:48:20,927 INFO L226 Difference]: Without dead ends: 402 [2020-09-25 07:48:20,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:48:20,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-25 07:48:20,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2020-09-25 07:48:20,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 07:48:20,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 405 transitions. [2020-09-25 07:48:20,945 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 405 transitions. Word has length 226 [2020-09-25 07:48:20,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:20,946 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 405 transitions. [2020-09-25 07:48:20,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 07:48:20,946 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 405 transitions. [2020-09-25 07:48:20,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-25 07:48:20,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:20,948 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 07:48:20,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 07:48:20,949 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:20,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:20,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1143051315, now seen corresponding path program 1 times [2020-09-25 07:48:20,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:20,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519903477] [2020-09-25 07:48:20,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-25 07:48:21,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:21,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-09-25 07:48:21,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:21,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 226 [2020-09-25 07:48:21,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:48:21,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:21,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:48:21,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:21,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:48:21,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:21,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:21,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:21,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:21,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 07:48:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:21,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:21,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:48:21,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:21,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:21,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:21,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:21,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:48:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:21,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:21,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:21,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:21,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:21,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:21,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:21,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 07:48:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 07:48:21,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:21,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 07:48:21,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 07:48:21,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 07:48:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:48:21,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:48:21,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:21,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:48:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 07:48:21,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:21,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:48:21,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:21,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:21,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 07:48:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:48:21,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:21,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:21,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:21,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-25 07:48:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:21,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:21,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:21,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:48:21,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:21,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:48:21,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:21,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:48:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:48:21,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:21,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:21,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519903477] [2020-09-25 07:48:21,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:21,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 07:48:21,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332465919] [2020-09-25 07:48:21,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 07:48:21,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:21,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 07:48:21,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:48:21,974 INFO L87 Difference]: Start difference. First operand 402 states and 405 transitions. Second operand 11 states. [2020-09-25 07:48:22,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:22,523 INFO L93 Difference]: Finished difference Result 402 states and 405 transitions. [2020-09-25 07:48:22,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:48:22,524 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2020-09-25 07:48:22,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:22,524 INFO L225 Difference]: With dead ends: 402 [2020-09-25 07:48:22,525 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:48:22,526 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 07:48:22,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:48:22,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:48:22,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:48:22,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:48:22,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 245 [2020-09-25 07:48:22,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:22,527 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:48:22,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 07:48:22,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:48:22,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:48:22,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 07:48:22,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.