/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=0.2 --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 04:21:30,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:21:30,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:21:30,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:21:30,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:21:30,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:21:30,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:21:30,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:21:30,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:21:30,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:21:30,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:21:30,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:21:30,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:21:30,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:21:30,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:21:30,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:21:30,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:21:30,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:21:30,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:21:30,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:21:30,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:21:30,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:21:30,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:21:30,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:21:30,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:21:30,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:21:30,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:21:30,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:21:30,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:21:30,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:21:30,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:21:30,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:21:30,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:21:30,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:21:30,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:21:30,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:21:30,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:21:30,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:21:30,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:21:30,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:21:30,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:21:30,081 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 04:21:30,108 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:21:30,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:21:30,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:21:30,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:21:30,110 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:21:30,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:21:30,111 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:21:30,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:21:30,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:21:30,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:21:30,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:21:30,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:21:30,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:21:30,112 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:21:30,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:21:30,112 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:21:30,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:21:30,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:21:30,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:21:30,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:21:30,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:21:30,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:30,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:21:30,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:21:30,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:21:30,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:21:30,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:21:30,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:21:30,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:21:30,115 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:21:30,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:21:30,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:21:30,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:21:30,645 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:21:30,645 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:21:30,646 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-09-25 04:21:30,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8c8c7669/bf78dd84df9546b08cb06d4c12790737/FLAG82aea5f4a [2020-09-25 04:21:31,338 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:21:31,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-09-25 04:21:31,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8c8c7669/bf78dd84df9546b08cb06d4c12790737/FLAG82aea5f4a [2020-09-25 04:21:31,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8c8c7669/bf78dd84df9546b08cb06d4c12790737 [2020-09-25 04:21:31,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:21:31,641 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:21:31,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:31,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:21:31,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:21:31,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:31" (1/1) ... [2020-09-25 04:21:31,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718a405b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:31, skipping insertion in model container [2020-09-25 04:21:31,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:31" (1/1) ... [2020-09-25 04:21:31,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:21:31,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:21:32,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:32,033 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:21:32,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:32,210 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:21:32,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32 WrapperNode [2020-09-25 04:21:32,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:32,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:21:32,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:21:32,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:21:32,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32" (1/1) ... [2020-09-25 04:21:32,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32" (1/1) ... [2020-09-25 04:21:32,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32" (1/1) ... [2020-09-25 04:21:32,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32" (1/1) ... [2020-09-25 04:21:32,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32" (1/1) ... [2020-09-25 04:21:32,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32" (1/1) ... [2020-09-25 04:21:32,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32" (1/1) ... [2020-09-25 04:21:32,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:21:32,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:21:32,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:21:32,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:21:32,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32" (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 04:21:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:21:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:21:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-25 04:21:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-25 04:21:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-25 04:21:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:21:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-25 04:21:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-25 04:21:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-25 04:21:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-25 04:21:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-25 04:21:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-25 04:21:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-25 04:21:32,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:21:32,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 04:21:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:21:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 04:21:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-25 04:21:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-25 04:21:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-25 04:21:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-25 04:21:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-25 04:21:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-25 04:21:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-25 04:21:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-25 04:21:32,354 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-25 04:21:32,354 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:21:32,354 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-25 04:21:32,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:21:32,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:21:32,635 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:32,797 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-09-25 04:21:32,797 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-09-25 04:21:32,801 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:32,863 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2020-09-25 04:21:32,863 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2020-09-25 04:21:32,889 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:32,925 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-25 04:21:32,925 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-25 04:21:32,941 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:33,131 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-25 04:21:33,131 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-25 04:21:33,151 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:21:33,151 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 04:21:33,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:33 BoogieIcfgContainer [2020-09-25 04:21:33,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:21:33,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:21:33,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:21:33,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:21:33,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:21:31" (1/3) ... [2020-09-25 04:21:33,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637551ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:33, skipping insertion in model container [2020-09-25 04:21:33,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32" (2/3) ... [2020-09-25 04:21:33,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637551ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:33, skipping insertion in model container [2020-09-25 04:21:33,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:33" (3/3) ... [2020-09-25 04:21:33,169 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-09-25 04:21:33,181 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:21:33,192 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:21:33,216 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:21:33,251 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:21:33,251 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:21:33,251 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:21:33,251 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:21:33,252 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:21:33,252 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:21:33,252 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:21:33,252 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:21:33,284 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states. [2020-09-25 04:21:33,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 04:21:33,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:33,298 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 04:21:33,298 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:33,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:33,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1164793869, now seen corresponding path program 1 times [2020-09-25 04:21:33,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:33,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009874333] [2020-09-25 04:21:33,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:33,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:33,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:34,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:34,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:34,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:34,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:35,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:35,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 04:21:35,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:21:35,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1604 [2020-09-25 04:21:35,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:35,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:35,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 04:21:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:21:35,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:21:35,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:35,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:35,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:35,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:21:35,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:35,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:21:35,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:35,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:35,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:35,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:35,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:35,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:35,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:21:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:35,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:35,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:35,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:35,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:35,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 04:21:35,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:35,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:35,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:35,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:35,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 04:21:35,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:35,460 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 04:21:35,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009874333] [2020-09-25 04:21:35,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:35,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:21:35,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490276933] [2020-09-25 04:21:35,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:21:35,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:35,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:21:35,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:21:35,503 INFO L87 Difference]: Start difference. First operand 366 states. Second operand 5 states. [2020-09-25 04:21:37,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:37,028 INFO L93 Difference]: Finished difference Result 666 states and 826 transitions. [2020-09-25 04:21:37,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:21:37,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2020-09-25 04:21:37,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:37,062 INFO L225 Difference]: With dead ends: 666 [2020-09-25 04:21:37,063 INFO L226 Difference]: Without dead ends: 382 [2020-09-25 04:21:37,074 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 04:21:37,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-09-25 04:21:37,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 351. [2020-09-25 04:21:37,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-09-25 04:21:37,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 401 transitions. [2020-09-25 04:21:37,171 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 401 transitions. Word has length 83 [2020-09-25 04:21:37,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:37,172 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 401 transitions. [2020-09-25 04:21:37,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:21:37,172 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 401 transitions. [2020-09-25 04:21:37,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-25 04:21:37,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:37,179 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 04:21:37,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:21:37,179 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:37,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:37,180 INFO L82 PathProgramCache]: Analyzing trace with hash 192642435, now seen corresponding path program 1 times [2020-09-25 04:21:37,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:37,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869672203] [2020-09-25 04:21:37,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:37,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:37,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:37,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 04:21:37,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:37,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-25 04:21:37,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:37,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:21:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-09-25 04:21:37,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 04:21:37,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:37,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:37,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:37,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:37,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:21:37,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:37,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:21:37,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:37,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:37,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:37,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:21:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:37,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:37,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:37,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:37,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:37,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:21:37,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:37,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:37,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:37,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:37,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:37,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:37,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:21:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:37,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:37,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:37,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:37,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:21:37,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:37,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:37,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:21:37,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:37,893 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 04:21:37,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869672203] [2020-09-25 04:21:37,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:37,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:21:37,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496637666] [2020-09-25 04:21:37,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:21:37,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:37,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:21:37,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:37,898 INFO L87 Difference]: Start difference. First operand 351 states and 401 transitions. Second operand 6 states. [2020-09-25 04:21:39,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:39,204 INFO L93 Difference]: Finished difference Result 588 states and 683 transitions. [2020-09-25 04:21:39,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:21:39,205 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-09-25 04:21:39,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:39,209 INFO L225 Difference]: With dead ends: 588 [2020-09-25 04:21:39,209 INFO L226 Difference]: Without dead ends: 502 [2020-09-25 04:21:39,211 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 04:21:39,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-09-25 04:21:39,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 463. [2020-09-25 04:21:39,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-25 04:21:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 527 transitions. [2020-09-25 04:21:39,255 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 527 transitions. Word has length 146 [2020-09-25 04:21:39,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:39,256 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 527 transitions. [2020-09-25 04:21:39,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:21:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 527 transitions. [2020-09-25 04:21:39,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 04:21:39,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:39,259 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 04:21:39,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:21:39,260 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:39,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:39,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1733953169, now seen corresponding path program 1 times [2020-09-25 04:21:39,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:39,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729103048] [2020-09-25 04:21:39,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:39,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:39,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:39,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-25 04:21:39,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:39,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-25 04:21:39,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:39,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:21:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 04:21:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 04:21:39,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:39,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:39,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:39,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:39,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:21:39,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:39,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:21:39,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:39,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:39,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:39,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:21:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:39,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:39,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:39,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:39,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:39,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:21:39,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:39,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:39,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:39,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:39,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:21:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:39,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:39,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:39,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:39,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:39,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:39,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:39,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:39,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:21:39,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:39,934 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 04:21:39,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729103048] [2020-09-25 04:21:39,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:39,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:21:39,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504444179] [2020-09-25 04:21:39,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:21:39,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:39,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:21:39,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:39,938 INFO L87 Difference]: Start difference. First operand 463 states and 527 transitions. Second operand 6 states. [2020-09-25 04:21:41,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:41,007 INFO L93 Difference]: Finished difference Result 665 states and 762 transitions. [2020-09-25 04:21:41,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:21:41,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2020-09-25 04:21:41,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:41,014 INFO L225 Difference]: With dead ends: 665 [2020-09-25 04:21:41,014 INFO L226 Difference]: Without dead ends: 556 [2020-09-25 04:21:41,015 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 04:21:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-09-25 04:21:41,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 502. [2020-09-25 04:21:41,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-25 04:21:41,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 574 transitions. [2020-09-25 04:21:41,051 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 574 transitions. Word has length 148 [2020-09-25 04:21:41,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:41,052 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 574 transitions. [2020-09-25 04:21:41,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:21:41,052 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 574 transitions. [2020-09-25 04:21:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 04:21:41,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:41,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:41,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:21:41,057 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:41,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1023389875, now seen corresponding path program 1 times [2020-09-25 04:21:41,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:41,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031124249] [2020-09-25 04:21:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:41,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:41,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:41,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 04:21:41,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:41,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-09-25 04:21:41,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:41,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:41,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:21:41,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 04:21:41,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 04:21:41,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:41,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:41,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:41,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:41,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:21:41,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:41,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:41,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:41,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:41,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:41,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:41,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:21:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:41,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:41,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:41,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:41,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:41,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:21:41,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:41,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:41,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:41,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:41,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:41,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:41,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:21:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:41,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:41,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:41,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:41,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:41,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:41,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:41,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:41,683 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 04:21:41,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031124249] [2020-09-25 04:21:41,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:41,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:21:41,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999754160] [2020-09-25 04:21:41,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:21:41,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:41,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:21:41,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:41,687 INFO L87 Difference]: Start difference. First operand 502 states and 574 transitions. Second operand 6 states. [2020-09-25 04:21:42,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:42,784 INFO L93 Difference]: Finished difference Result 506 states and 577 transitions. [2020-09-25 04:21:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:21:42,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 04:21:42,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:42,790 INFO L225 Difference]: With dead ends: 506 [2020-09-25 04:21:42,790 INFO L226 Difference]: Without dead ends: 503 [2020-09-25 04:21:42,791 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 04:21:42,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-25 04:21:42,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 502. [2020-09-25 04:21:42,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-25 04:21:42,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 573 transitions. [2020-09-25 04:21:42,817 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 573 transitions. Word has length 172 [2020-09-25 04:21:42,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:42,818 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 573 transitions. [2020-09-25 04:21:42,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:21:42,818 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 573 transitions. [2020-09-25 04:21:42,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 04:21:42,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:42,823 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 04:21:42,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:21:42,824 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:42,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:42,824 INFO L82 PathProgramCache]: Analyzing trace with hash -734364592, now seen corresponding path program 1 times [2020-09-25 04:21:42,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:42,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608635906] [2020-09-25 04:21:42,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:42,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:43,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 04:21:43,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:43,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863 [2020-09-25 04:21:43,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:43,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:43,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:43,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 04:21:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:21:43,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:43,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:43,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:43,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:21:43,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:43,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:43,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:43,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:43,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:43,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:43,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:43,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:43,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:21:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:43,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:43,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:43,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:43,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:21:43,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:43,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:43,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:43,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:43,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:43,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:43,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:21:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:43,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:43,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:43,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:43,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:43,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:43,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:43,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:43,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:43,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:43,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:21:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:43,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:43,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:43,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:43,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:21:43,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:43,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:43,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:43,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:43,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:21:43,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:43,979 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 04:21:43,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608635906] [2020-09-25 04:21:43,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:43,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:21:43,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64095953] [2020-09-25 04:21:43,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:21:43,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:43,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:21:43,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:43,983 INFO L87 Difference]: Start difference. First operand 502 states and 573 transitions. Second operand 8 states. [2020-09-25 04:21:45,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:45,313 INFO L93 Difference]: Finished difference Result 580 states and 662 transitions. [2020-09-25 04:21:45,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:21:45,314 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 186 [2020-09-25 04:21:45,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:45,317 INFO L225 Difference]: With dead ends: 580 [2020-09-25 04:21:45,317 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 04:21:45,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:21:45,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 04:21:45,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 451. [2020-09-25 04:21:45,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-09-25 04:21:45,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 511 transitions. [2020-09-25 04:21:45,340 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 511 transitions. Word has length 186 [2020-09-25 04:21:45,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:45,341 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 511 transitions. [2020-09-25 04:21:45,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:21:45,341 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 511 transitions. [2020-09-25 04:21:45,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 04:21:45,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:45,346 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 04:21:45,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:21:45,347 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:45,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:45,347 INFO L82 PathProgramCache]: Analyzing trace with hash -617767856, now seen corresponding path program 1 times [2020-09-25 04:21:45,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:45,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024738084] [2020-09-25 04:21:45,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:45,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:46,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:46,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:47,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 04:21:48,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:21:48,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3011 [2020-09-25 04:21:48,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:48,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 04:21:48,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 04:21:48,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:48,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:21:48,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:48,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:48,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:48,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:48,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:21:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:48,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:48,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:21:48,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:48,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:48,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:48,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:48,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:21:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:48,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:48,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:21:48,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:48,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:21:48,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:48,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 04:21:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:21:48,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:48,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 04:21:48,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:21:48,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:48,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 04:21:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:48,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:48,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:21:48,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:48,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:48,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:48,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:48,829 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 04:21:48,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024738084] [2020-09-25 04:21:48,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:48,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:21:48,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694358450] [2020-09-25 04:21:48,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:21:48,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:48,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:21:48,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:48,834 INFO L87 Difference]: Start difference. First operand 451 states and 511 transitions. Second operand 8 states. [2020-09-25 04:21:50,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:50,004 INFO L93 Difference]: Finished difference Result 460 states and 522 transitions. [2020-09-25 04:21:50,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:21:50,004 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2020-09-25 04:21:50,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:50,006 INFO L225 Difference]: With dead ends: 460 [2020-09-25 04:21:50,007 INFO L226 Difference]: Without dead ends: 280 [2020-09-25 04:21:50,009 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 04:21:50,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-25 04:21:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-09-25 04:21:50,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-25 04:21:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 293 transitions. [2020-09-25 04:21:50,026 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 293 transitions. Word has length 191 [2020-09-25 04:21:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:50,026 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 293 transitions. [2020-09-25 04:21:50,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:21:50,027 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 293 transitions. [2020-09-25 04:21:50,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 04:21:50,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:50,030 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 04:21:50,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:21:50,030 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:50,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:50,031 INFO L82 PathProgramCache]: Analyzing trace with hash -836248096, now seen corresponding path program 1 times [2020-09-25 04:21:50,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:50,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869701428] [2020-09-25 04:21:50,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:50,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:50,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:50,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-25 04:21:50,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:50,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 04:21:50,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:50,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-25 04:21:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:21:50,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:50,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:50,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:50,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:50,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:21:50,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:50,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:50,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:50,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:50,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:50,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:21:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:50,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:50,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:50,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:50,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:50,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:21:50,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:50,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:50,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:50,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:50,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:50,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:50,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:21:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:50,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:50,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:50,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:50,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:50,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:50,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:50,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:50,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:50,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:50,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:50,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:50,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 04:21:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:50,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:50,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:50,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:21:50,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:50,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:21:50,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:50,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:50,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:50,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:21:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:50,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:50,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:50,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:21:50,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:50,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:50,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:50,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:50,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:50,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 04:21:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:50,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:50,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:50,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:21:50,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:50,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:50,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:50,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:21:50,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:50,606 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 04:21:50,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869701428] [2020-09-25 04:21:50,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:50,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:21:50,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787994560] [2020-09-25 04:21:50,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:21:50,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:50,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:21:50,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:50,610 INFO L87 Difference]: Start difference. First operand 280 states and 293 transitions. Second operand 8 states. [2020-09-25 04:21:51,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:51,015 INFO L93 Difference]: Finished difference Result 325 states and 343 transitions. [2020-09-25 04:21:51,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:21:51,016 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-09-25 04:21:51,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:51,019 INFO L225 Difference]: With dead ends: 325 [2020-09-25 04:21:51,019 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 04:21:51,021 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 04:21:51,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 04:21:51,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2020-09-25 04:21:51,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 04:21:51,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 287 transitions. [2020-09-25 04:21:51,033 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 287 transitions. Word has length 200 [2020-09-25 04:21:51,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:51,034 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 287 transitions. [2020-09-25 04:21:51,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:21:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 287 transitions. [2020-09-25 04:21:51,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 04:21:51,037 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:51,038 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 04:21:51,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:21:51,038 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:51,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:51,038 INFO L82 PathProgramCache]: Analyzing trace with hash -602224561, now seen corresponding path program 1 times [2020-09-25 04:21:51,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:51,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577907218] [2020-09-25 04:21:51,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:51,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:52,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 04:21:52,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:52,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1413 [2020-09-25 04:21:52,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:52,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:21:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 04:21:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-25 04:21:52,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:52,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:52,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:52,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:21:52,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:52,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:21:52,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:52,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:52,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:52,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:21:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:52,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:52,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:52,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 04:21:52,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:52,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:52,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:21:52,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:52,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:21:52,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:52,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:21:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:52,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:52,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:52,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:52,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:21:52,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:52,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:52,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:52,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:52,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:21:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:52,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:21:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:52,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:52,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 04:21:52,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:52,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 04:21:52,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:52,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:21:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 04:21:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:21:52,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:52,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:21:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:52,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:52,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:21:52,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:52,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:21:52,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:52,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:52,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:52,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:52,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:52,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:52,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:21:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:52,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:52,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:21:52,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:52,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:52,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:52,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:52,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:52,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:52,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:21:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:52,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:52,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:21:52,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:52,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:52,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:52,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:52,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:21:52,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:53,039 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 04:21:53,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577907218] [2020-09-25 04:21:53,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:53,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 04:21:53,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820315154] [2020-09-25 04:21:53,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 04:21:53,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:53,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 04:21:53,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:21:53,044 INFO L87 Difference]: Start difference. First operand 276 states and 287 transitions. Second operand 12 states. [2020-09-25 04:21:53,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:53,983 INFO L93 Difference]: Finished difference Result 321 states and 337 transitions. [2020-09-25 04:21:53,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 04:21:53,984 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 216 [2020-09-25 04:21:53,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:53,987 INFO L225 Difference]: With dead ends: 321 [2020-09-25 04:21:53,987 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 04:21:53,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2020-09-25 04:21:53,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 04:21:53,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-09-25 04:21:53,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-25 04:21:53,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 284 transitions. [2020-09-25 04:21:53,999 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 284 transitions. Word has length 216 [2020-09-25 04:21:54,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:54,000 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 284 transitions. [2020-09-25 04:21:54,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 04:21:54,000 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 284 transitions. [2020-09-25 04:21:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 04:21:54,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:54,003 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 04:21:54,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:21:54,004 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:54,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:54,004 INFO L82 PathProgramCache]: Analyzing trace with hash -2077149002, now seen corresponding path program 1 times [2020-09-25 04:21:54,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:54,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844141683] [2020-09-25 04:21:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:54,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-25 04:21:55,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:21:55,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1730 [2020-09-25 04:21:55,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:55,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-09-25 04:21:55,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:21:55,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:21:55,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:21:55,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:21:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:55,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:21:55,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:55,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:21:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:55,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:55,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:55,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:55,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:21:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:56,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:21:56,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 04:21:56,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:56,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 04:21:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:21:56,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:56,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:21:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:56,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:56,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:21:56,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:21:56,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:56,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:56,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:56,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:21:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:56,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:56,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:21:56,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:21:56,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:56,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:56,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:56,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:21:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:56,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:56,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:21:56,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:56,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:56,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:56,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:56,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:56,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:56,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:56,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:56,145 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 04:21:56,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844141683] [2020-09-25 04:21:56,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:56,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:21:56,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785134720] [2020-09-25 04:21:56,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:21:56,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:56,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:21:56,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:21:56,154 INFO L87 Difference]: Start difference. First operand 274 states and 284 transitions. Second operand 9 states. [2020-09-25 04:21:56,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:56,980 INFO L93 Difference]: Finished difference Result 329 states and 345 transitions. [2020-09-25 04:21:56,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:21:56,981 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 218 [2020-09-25 04:21:56,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:56,984 INFO L225 Difference]: With dead ends: 329 [2020-09-25 04:21:56,984 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 04:21:56,985 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 04:21:56,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 04:21:57,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 277. [2020-09-25 04:21:57,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 04:21:57,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 287 transitions. [2020-09-25 04:21:57,009 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 287 transitions. Word has length 218 [2020-09-25 04:21:57,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:57,010 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 287 transitions. [2020-09-25 04:21:57,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:21:57,010 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 287 transitions. [2020-09-25 04:21:57,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-25 04:21:57,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:57,014 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 04:21:57,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:21:57,015 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:57,015 INFO L82 PathProgramCache]: Analyzing trace with hash 666432309, now seen corresponding path program 1 times [2020-09-25 04:21:57,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:57,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877610162] [2020-09-25 04:21:57,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:57,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:57,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:57,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:57,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:00,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 04:22:00,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:00,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3538 [2020-09-25 04:22:00,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:00,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 237 [2020-09-25 04:22:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:22:00,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:00,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:00,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:22:00,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:00,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:22:00,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:00,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:00,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:00,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:00,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:22:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:00,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:00,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:00,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:22:00,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:00,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:00,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:00,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:00,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:00,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:22:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:00,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:00,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:00,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:00,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:00,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:00,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:22:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:00,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:22:00,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:00,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 04:22:00,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:00,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:00,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:00,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:00,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:00,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:00,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:22:00,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:00,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:00,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:00,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:00,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:00,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:00,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:22:00,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:00,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:00,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:00,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:00,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:00,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:00,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:22:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:00,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:22:00,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:00,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:00,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:00,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:00,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:00,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:00,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:00,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:01,004 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 04:22:01,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877610162] [2020-09-25 04:22:01,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:01,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:22:01,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460583333] [2020-09-25 04:22:01,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:22:01,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:01,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:22:01,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:22:01,007 INFO L87 Difference]: Start difference. First operand 277 states and 287 transitions. Second operand 9 states. [2020-09-25 04:22:01,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:01,796 INFO L93 Difference]: Finished difference Result 299 states and 310 transitions. [2020-09-25 04:22:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:22:01,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 219 [2020-09-25 04:22:01,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:01,800 INFO L225 Difference]: With dead ends: 299 [2020-09-25 04:22:01,800 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 04:22:01,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:22:01,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 04:22:01,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 279. [2020-09-25 04:22:01,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-09-25 04:22:01,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 288 transitions. [2020-09-25 04:22:01,822 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 288 transitions. Word has length 219 [2020-09-25 04:22:01,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:01,823 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 288 transitions. [2020-09-25 04:22:01,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:22:01,823 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 288 transitions. [2020-09-25 04:22:01,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-25 04:22:01,829 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:01,830 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 04:22:01,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:22:01,830 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:01,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1112255828, now seen corresponding path program 1 times [2020-09-25 04:22:01,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:01,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464632895] [2020-09-25 04:22:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:01,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:06,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 04:22:06,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:06,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 04:22:06,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:06,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:06,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-25 04:22:06,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 04:22:06,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:06,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:06,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:07,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:22:07,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:07,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:22:07,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:07,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:07,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:22:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:07,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:07,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:07,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:07,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:22:07,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:07,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:07,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:22:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:07,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:07,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:07,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:07,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:07,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:07,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:07,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:07,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:07,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:07,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:07,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:22:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:07,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:07,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:22:07,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:07,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 04:22:07,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:07,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:07,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 04:22:07,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:07,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:07,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:07,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:07,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:07,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:22:07,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:07,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:22:07,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:07,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:07,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:07,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:07,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:07,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:07,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:07,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:07,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:07,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:07,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:07,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:07,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:22:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:07,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:07,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:22:07,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:07,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:07,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:07,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:22:07,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:07,301 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 04:22:07,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464632895] [2020-09-25 04:22:07,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:07,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:22:07,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537388986] [2020-09-25 04:22:07,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:22:07,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:07,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:22:07,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:22:07,304 INFO L87 Difference]: Start difference. First operand 279 states and 288 transitions. Second operand 9 states. [2020-09-25 04:22:07,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:07,720 INFO L93 Difference]: Finished difference Result 305 states and 316 transitions. [2020-09-25 04:22:07,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:22:07,721 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 220 [2020-09-25 04:22:07,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:07,723 INFO L225 Difference]: With dead ends: 305 [2020-09-25 04:22:07,724 INFO L226 Difference]: Without dead ends: 250 [2020-09-25 04:22:07,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:22:07,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-25 04:22:07,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-09-25 04:22:07,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-25 04:22:07,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 254 transitions. [2020-09-25 04:22:07,754 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 254 transitions. Word has length 220 [2020-09-25 04:22:07,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:07,755 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 254 transitions. [2020-09-25 04:22:07,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:22:07,755 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 254 transitions. [2020-09-25 04:22:07,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-25 04:22:07,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:07,759 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 04:22:07,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:22:07,759 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:07,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:07,759 INFO L82 PathProgramCache]: Analyzing trace with hash -2086033285, now seen corresponding path program 1 times [2020-09-25 04:22:07,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:07,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068011771] [2020-09-25 04:22:07,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:07,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:08,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 04:22:08,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:08,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1087 [2020-09-25 04:22:08,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:08,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:22:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 220 [2020-09-25 04:22:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:22:08,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:08,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:08,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:22:09,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:09,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:09,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:22:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:09,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:22:09,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:09,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:22:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:09,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:09,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:09,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:22:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 04:22:09,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:09,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 04:22:09,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:09,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:22:09,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:09,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:09,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:22:09,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:09,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:09,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:09,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:09,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:22:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:22:09,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:09,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:09,338 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 04:22:09,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068011771] [2020-09-25 04:22:09,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:09,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 04:22:09,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616884902] [2020-09-25 04:22:09,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 04:22:09,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:09,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 04:22:09,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:22:09,341 INFO L87 Difference]: Start difference. First operand 250 states and 254 transitions. Second operand 12 states. [2020-09-25 04:22:09,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:09,974 INFO L93 Difference]: Finished difference Result 260 states and 263 transitions. [2020-09-25 04:22:09,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:22:09,975 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 223 [2020-09-25 04:22:09,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:09,978 INFO L225 Difference]: With dead ends: 260 [2020-09-25 04:22:09,978 INFO L226 Difference]: Without dead ends: 250 [2020-09-25 04:22:09,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:22:09,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-25 04:22:09,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-09-25 04:22:09,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-09-25 04:22:09,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 253 transitions. [2020-09-25 04:22:09,991 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 253 transitions. Word has length 223 [2020-09-25 04:22:09,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:09,992 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 253 transitions. [2020-09-25 04:22:09,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 04:22:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 253 transitions. [2020-09-25 04:22:09,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 04:22:09,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:09,996 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 04:22:09,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:22:09,996 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:09,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:09,998 INFO L82 PathProgramCache]: Analyzing trace with hash 795376417, now seen corresponding path program 1 times [2020-09-25 04:22:09,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:09,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451429931] [2020-09-25 04:22:09,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:10,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:10,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:10,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:11,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 04:22:11,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:22:11,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1885 [2020-09-25 04:22:11,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:11,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-25 04:22:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 04:22:11,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:22:12,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:12,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:12,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:12,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:12,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:12,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:22:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:12,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:12,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:22:12,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:12,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:12,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:22:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:12,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:12,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:22:12,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:12,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:12,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:22:12,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:12,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:22:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 04:22:12,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:12,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 04:22:12,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:12,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:12,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 04:22:12,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:12,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:12,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:22:12,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:12,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:12,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:12,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:12,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:22:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:12,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:22:12,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:12,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:12,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:12,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:12,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:12,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:12,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,286 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 04:22:12,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451429931] [2020-09-25 04:22:12,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:12,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:22:12,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912870043] [2020-09-25 04:22:12,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:22:12,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:12,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:22:12,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:22:12,289 INFO L87 Difference]: Start difference. First operand 250 states and 253 transitions. Second operand 9 states. [2020-09-25 04:22:13,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:13,324 INFO L93 Difference]: Finished difference Result 417 states and 422 transitions. [2020-09-25 04:22:13,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 04:22:13,325 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 224 [2020-09-25 04:22:13,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:13,328 INFO L225 Difference]: With dead ends: 417 [2020-09-25 04:22:13,328 INFO L226 Difference]: Without dead ends: 407 [2020-09-25 04:22:13,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:22:13,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-25 04:22:13,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 402. [2020-09-25 04:22:13,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 04:22:13,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 407 transitions. [2020-09-25 04:22:13,348 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 407 transitions. Word has length 224 [2020-09-25 04:22:13,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:13,348 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 407 transitions. [2020-09-25 04:22:13,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:22:13,349 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 407 transitions. [2020-09-25 04:22:13,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 04:22:13,350 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:13,351 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 04:22:13,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:22:13,351 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:13,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:13,352 INFO L82 PathProgramCache]: Analyzing trace with hash 273790532, now seen corresponding path program 1 times [2020-09-25 04:22:13,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:13,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596710787] [2020-09-25 04:22:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:13,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:13,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:13,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:13,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-25 04:22:13,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:13,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-09-25 04:22:13,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:13,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:22:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 04:22:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:22:13,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:14,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:22:14,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:22:14,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:22:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:14,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:22:14,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:22:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:14,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:14,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:14,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 04:22:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 04:22:14,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:14,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 04:22:14,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 04:22:14,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:14,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:14,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:22:14,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:14,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:14,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:14,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:14,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:22:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:22:14,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:14,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,516 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 04:22:14,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596710787] [2020-09-25 04:22:14,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:14,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 04:22:14,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583541454] [2020-09-25 04:22:14,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 04:22:14,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:14,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 04:22:14,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:22:14,518 INFO L87 Difference]: Start difference. First operand 402 states and 407 transitions. Second operand 13 states. [2020-09-25 04:22:15,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,476 INFO L93 Difference]: Finished difference Result 419 states and 424 transitions. [2020-09-25 04:22:15,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 04:22:15,477 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 226 [2020-09-25 04:22:15,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,480 INFO L225 Difference]: With dead ends: 419 [2020-09-25 04:22:15,481 INFO L226 Difference]: Without dead ends: 402 [2020-09-25 04:22:15,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:22:15,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-25 04:22:15,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2020-09-25 04:22:15,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 04:22:15,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 405 transitions. [2020-09-25 04:22:15,499 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 405 transitions. Word has length 226 [2020-09-25 04:22:15,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:15,500 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 405 transitions. [2020-09-25 04:22:15,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 04:22:15,500 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 405 transitions. [2020-09-25 04:22:15,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-25 04:22:15,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:15,503 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 04:22:15,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 04:22:15,504 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:15,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1143051315, now seen corresponding path program 1 times [2020-09-25 04:22:15,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:15,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009538197] [2020-09-25 04:22:15,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-25 04:22:16,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:16,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-09-25 04:22:16,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:16,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 226 [2020-09-25 04:22:16,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:22:16,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:22:16,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:22:16,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 04:22:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:16,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:22:16,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:22:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:16,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:16,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 04:22:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 04:22:16,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 04:22:16,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:16,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 04:22:16,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:16,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:22:16,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:16,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:16,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 04:22:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:22:16,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:16,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-25 04:22:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:22:16,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:16,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:22:16,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:16,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:22:16,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:22:16,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,618 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 04:22:16,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009538197] [2020-09-25 04:22:16,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:22:16,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51636158] [2020-09-25 04:22:16,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:22:16,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:22:16,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:22:16,621 INFO L87 Difference]: Start difference. First operand 402 states and 405 transitions. Second operand 11 states.