/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 01:08:41,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 01:08:41,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 01:08:41,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 01:08:41,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 01:08:41,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 01:08:41,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 01:08:41,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 01:08:41,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 01:08:41,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 01:08:41,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 01:08:41,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 01:08:41,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 01:08:41,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 01:08:41,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 01:08:41,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 01:08:41,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 01:08:41,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 01:08:41,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 01:08:41,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 01:08:41,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 01:08:41,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 01:08:41,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 01:08:41,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 01:08:41,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 01:08:41,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 01:08:41,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 01:08:41,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 01:08:41,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 01:08:41,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 01:08:41,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 01:08:41,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 01:08:41,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 01:08:41,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 01:08:41,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 01:08:41,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 01:08:41,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 01:08:41,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 01:08:41,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 01:08:41,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 01:08:41,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 01:08:41,106 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 01:08:41,153 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 01:08:41,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 01:08:41,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 01:08:41,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 01:08:41,157 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 01:08:41,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 01:08:41,158 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 01:08:41,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 01:08:41,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 01:08:41,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 01:08:41,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 01:08:41,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 01:08:41,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 01:08:41,160 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 01:08:41,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 01:08:41,161 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 01:08:41,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 01:08:41,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 01:08:41,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 01:08:41,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 01:08:41,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 01:08:41,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:08:41,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 01:08:41,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 01:08:41,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 01:08:41,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 01:08:41,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 01:08:41,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 01:08:41,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 01:08:41,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 01:08:41,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 01:08:41,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 01:08:41,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 01:08:41,506 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 01:08:41,506 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 01:08:41,507 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label44.c [2020-10-14 01:08:41,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bcb2c9b1/188ff9ffa3554bf3bb4a1ead626431bf/FLAGd57c60066 [2020-10-14 01:08:42,391 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 01:08:42,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem04_label44.c [2020-10-14 01:08:42,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bcb2c9b1/188ff9ffa3554bf3bb4a1ead626431bf/FLAGd57c60066 [2020-10-14 01:08:42,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bcb2c9b1/188ff9ffa3554bf3bb4a1ead626431bf [2020-10-14 01:08:42,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 01:08:42,863 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 01:08:42,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 01:08:42,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 01:08:42,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 01:08:42,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:08:42" (1/1) ... [2020-10-14 01:08:42,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:42, skipping insertion in model container [2020-10-14 01:08:42,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:08:42" (1/1) ... [2020-10-14 01:08:42,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 01:08:43,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 01:08:45,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:08:45,074 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 01:08:45,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 01:08:46,051 INFO L208 MainTranslator]: Completed translation [2020-10-14 01:08:46,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:46 WrapperNode [2020-10-14 01:08:46,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 01:08:46,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 01:08:46,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 01:08:46,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 01:08:46,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:46" (1/1) ... [2020-10-14 01:08:46,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:46" (1/1) ... [2020-10-14 01:08:46,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:46" (1/1) ... [2020-10-14 01:08:46,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:46" (1/1) ... [2020-10-14 01:08:46,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:46" (1/1) ... [2020-10-14 01:08:46,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:46" (1/1) ... [2020-10-14 01:08:46,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:46" (1/1) ... [2020-10-14 01:08:46,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 01:08:46,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 01:08:46,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 01:08:46,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 01:08:46,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 01:08:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 01:08:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 01:08:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 01:08:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 01:08:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 01:08:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 01:08:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 01:08:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 01:08:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 01:08:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 01:08:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 01:08:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 01:08:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 01:08:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 01:08:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 01:08:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 01:08:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 01:08:51,162 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 01:08:51,162 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 01:08:51,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:08:51 BoogieIcfgContainer [2020-10-14 01:08:51,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 01:08:51,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 01:08:51,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 01:08:51,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 01:08:51,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:08:42" (1/3) ... [2020-10-14 01:08:51,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ab98e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:08:51, skipping insertion in model container [2020-10-14 01:08:51,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:08:46" (2/3) ... [2020-10-14 01:08:51,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ab98e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:08:51, skipping insertion in model container [2020-10-14 01:08:51,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:08:51" (3/3) ... [2020-10-14 01:08:51,182 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label44.c [2020-10-14 01:08:51,194 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 01:08:51,202 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 01:08:51,217 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 01:08:51,246 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 01:08:51,246 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 01:08:51,246 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 01:08:51,247 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 01:08:51,247 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 01:08:51,249 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 01:08:51,249 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 01:08:51,249 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 01:08:51,293 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2020-10-14 01:08:51,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2020-10-14 01:08:51,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:08:51,348 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:08:51,348 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:08:51,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:08:51,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1766115387, now seen corresponding path program 1 times [2020-10-14 01:08:51,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:08:51,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626687053] [2020-10-14 01:08:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:08:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:52,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:57,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:57,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:57,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 808 [2020-10-14 01:08:57,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:08:57,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5322 [2020-10-14 01:08:57,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:57,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 01:08:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:08:57,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 802 [2020-10-14 01:08:57,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 01:08:58,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:08:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:08:58,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:08:58,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:08:58,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:08:58,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:08:58,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 01:08:58,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:08:58,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:08:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:08:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:08:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:08:58,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:08:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:08:58,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626687053] [2020-10-14 01:08:58,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:08:58,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 01:08:58,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243962045] [2020-10-14 01:08:58,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 01:08:58,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:08:59,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 01:08:59,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 01:08:59,013 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 4 states. [2020-10-14 01:09:07,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:09:07,484 INFO L93 Difference]: Finished difference Result 2672 states and 5138 transitions. [2020-10-14 01:09:07,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 01:09:07,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 794 [2020-10-14 01:09:07,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:09:07,518 INFO L225 Difference]: With dead ends: 2672 [2020-10-14 01:09:07,519 INFO L226 Difference]: Without dead ends: 1702 [2020-10-14 01:09:07,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 01:09:07,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2020-10-14 01:09:07,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1687. [2020-10-14 01:09:07,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1687 states. [2020-10-14 01:09:07,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2973 transitions. [2020-10-14 01:09:07,723 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2973 transitions. Word has length 794 [2020-10-14 01:09:07,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:09:07,728 INFO L479 AbstractCegarLoop]: Abstraction has 1687 states and 2973 transitions. [2020-10-14 01:09:07,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 01:09:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2973 transitions. [2020-10-14 01:09:07,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2020-10-14 01:09:07,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:09:07,756 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:09:07,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 01:09:07,757 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:09:07,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:09:07,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1476746208, now seen corresponding path program 1 times [2020-10-14 01:09:07,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:09:07,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136991201] [2020-10-14 01:09:07,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:09:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:07,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:08,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:12,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:12,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 819 [2020-10-14 01:09:12,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:09:12,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5095 [2020-10-14 01:09:12,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:12,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:12,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:09:12,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:09:12,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 01:09:12,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:09:13,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:09:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:13,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:13,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:13,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:09:13,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:13,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 01:09:13,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:13,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:09:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:09:13,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:09:13,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:09:13,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:09:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:13,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:13,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:13,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 01:09:13,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:13,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 01:09:13,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:13,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:13,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:09:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:09:13,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:09:13,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:09:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:09:13,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136991201] [2020-10-14 01:09:13,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:09:13,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:09:13,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370891919] [2020-10-14 01:09:13,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:09:13,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:09:13,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:09:13,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:09:13,862 INFO L87 Difference]: Start difference. First operand 1687 states and 2973 transitions. Second operand 7 states. [2020-10-14 01:09:23,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:09:23,005 INFO L93 Difference]: Finished difference Result 5199 states and 9177 transitions. [2020-10-14 01:09:23,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:09:23,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 803 [2020-10-14 01:09:23,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:09:23,037 INFO L225 Difference]: With dead ends: 5199 [2020-10-14 01:09:23,037 INFO L226 Difference]: Without dead ends: 3518 [2020-10-14 01:09:23,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:09:23,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3518 states. [2020-10-14 01:09:23,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3518 to 3421. [2020-10-14 01:09:23,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3421 states. [2020-10-14 01:09:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 5258 transitions. [2020-10-14 01:09:23,189 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 5258 transitions. Word has length 803 [2020-10-14 01:09:23,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:09:23,189 INFO L479 AbstractCegarLoop]: Abstraction has 3421 states and 5258 transitions. [2020-10-14 01:09:23,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:09:23,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 5258 transitions. [2020-10-14 01:09:23,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2020-10-14 01:09:23,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:09:23,216 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:09:23,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 01:09:23,216 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:09:23,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:09:23,217 INFO L82 PathProgramCache]: Analyzing trace with hash 484246400, now seen corresponding path program 1 times [2020-10-14 01:09:23,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:09:23,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80210264] [2020-10-14 01:09:23,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:09:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:23,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:23,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:24,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:27,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:27,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:28,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:28,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 875 [2020-10-14 01:09:28,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:09:28,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-14 01:09:28,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:28,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:09:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 01:09:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 01:09:28,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:09:28,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:09:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:28,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:28,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:28,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:09:28,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:09:28,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:28,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:09:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:09:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:09:28,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:09:28,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:09:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:28,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:28,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:28,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 01:09:28,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:28,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 01:09:28,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:28,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:09:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:09:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:09:28,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:09:28,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 01:09:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:28,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:28,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:28,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:09:28,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:28,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 01:09:28,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:28,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:09:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:09:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:09:28,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:09:28,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 01:09:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:28,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:28,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:28,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 01:09:28,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:28,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 01:09:28,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:28,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:09:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:09:28,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 01:09:28,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:09:28,941 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 01:09:28,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80210264] [2020-10-14 01:09:28,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:09:28,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:09:28,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360299212] [2020-10-14 01:09:28,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:09:28,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:09:28,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:09:28,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:09:28,944 INFO L87 Difference]: Start difference. First operand 3421 states and 5258 transitions. Second operand 7 states. [2020-10-14 01:09:39,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:09:39,244 INFO L93 Difference]: Finished difference Result 8724 states and 14128 transitions. [2020-10-14 01:09:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:09:39,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 855 [2020-10-14 01:09:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:09:39,292 INFO L225 Difference]: With dead ends: 8724 [2020-10-14 01:09:39,292 INFO L226 Difference]: Without dead ends: 5309 [2020-10-14 01:09:39,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:09:39,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5309 states. [2020-10-14 01:09:39,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5309 to 5230. [2020-10-14 01:09:39,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5230 states. [2020-10-14 01:09:39,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 7633 transitions. [2020-10-14 01:09:39,511 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 7633 transitions. Word has length 855 [2020-10-14 01:09:39,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:09:39,512 INFO L479 AbstractCegarLoop]: Abstraction has 5230 states and 7633 transitions. [2020-10-14 01:09:39,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:09:39,512 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 7633 transitions. [2020-10-14 01:09:39,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2020-10-14 01:09:39,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:09:39,543 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:09:39,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 01:09:39,543 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:09:39,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:09:39,544 INFO L82 PathProgramCache]: Analyzing trace with hash 445777466, now seen corresponding path program 1 times [2020-10-14 01:09:39,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:09:39,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693656682] [2020-10-14 01:09:39,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:09:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:39,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:39,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:44,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:44,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 890 [2020-10-14 01:09:44,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 01:09:44,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-14 01:09:44,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:44,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:44,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 01:09:44,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 01:09:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 01:09:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:09:44,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:09:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:44,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:44,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:44,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:09:44,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:44,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 01:09:44,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:44,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:09:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:09:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 01:09:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 01:09:44,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:09:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:45,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:45,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:09:45,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 01:09:45,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:09:45,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 01:09:45,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:09:45,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:09:45,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:09:45,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:09:45,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 01:09:45,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:09:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 01:09:45,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693656682] [2020-10-14 01:09:45,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 01:09:45,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 01:09:45,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080169084] [2020-10-14 01:09:45,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:09:45,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:09:45,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:09:45,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:09:45,590 INFO L87 Difference]: Start difference. First operand 5230 states and 7633 transitions. Second operand 7 states. [2020-10-14 01:09:55,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:09:55,629 INFO L93 Difference]: Finished difference Result 15909 states and 23993 transitions. [2020-10-14 01:09:55,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:09:55,629 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 874 [2020-10-14 01:09:55,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:09:55,684 INFO L225 Difference]: With dead ends: 15909 [2020-10-14 01:09:55,684 INFO L226 Difference]: Without dead ends: 10685 [2020-10-14 01:09:55,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:09:55,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10685 states. [2020-10-14 01:09:55,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10685 to 10553. [2020-10-14 01:09:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10553 states. [2020-10-14 01:09:55,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10553 states to 10553 states and 14359 transitions. [2020-10-14 01:09:55,995 INFO L78 Accepts]: Start accepts. Automaton has 10553 states and 14359 transitions. Word has length 874 [2020-10-14 01:09:55,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:09:55,995 INFO L479 AbstractCegarLoop]: Abstraction has 10553 states and 14359 transitions. [2020-10-14 01:09:55,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:09:55,996 INFO L276 IsEmpty]: Start isEmpty. Operand 10553 states and 14359 transitions. [2020-10-14 01:09:56,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2020-10-14 01:09:56,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:09:56,032 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:09:56,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 01:09:56,033 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:09:56,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:09:56,033 INFO L82 PathProgramCache]: Analyzing trace with hash 960302537, now seen corresponding path program 1 times [2020-10-14 01:09:56,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:09:56,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655338494] [2020-10-14 01:09:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:09:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:09:56,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:56,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:57,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:09:59,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:01,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:01,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 900 [2020-10-14 01:10:01,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:10:01,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5119 [2020-10-14 01:10:01,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:01,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:10:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 01:10:01,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 01:10:01,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 01:10:01,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:10:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:01,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:01,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:01,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:10:01,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:10:01,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:01,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:01,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:10:01,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:01,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:10:01,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:01,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:10:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:01,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:01,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:01,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 01:10:01,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:01,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 01:10:01,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:01,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:01,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:10:01,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 01:10:01,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:01,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 01:10:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:01,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:01,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:01,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 01:10:01,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:01,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 01:10:01,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:01,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:01,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:10:01,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:10:01,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 01:10:01,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:02,190 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 01:10:02,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655338494] [2020-10-14 01:10:02,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:10:02,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:10:02,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440020060] [2020-10-14 01:10:02,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:10:02,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:10:02,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:10:02,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:10:02,194 INFO L87 Difference]: Start difference. First operand 10553 states and 14359 transitions. Second operand 7 states. [2020-10-14 01:10:18,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:10:18,506 INFO L93 Difference]: Finished difference Result 41127 states and 59739 transitions. [2020-10-14 01:10:18,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:10:18,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 882 [2020-10-14 01:10:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:10:18,647 INFO L225 Difference]: With dead ends: 41127 [2020-10-14 01:10:18,647 INFO L226 Difference]: Without dead ends: 30580 [2020-10-14 01:10:18,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:10:18,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30580 states. [2020-10-14 01:10:19,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30580 to 29680. [2020-10-14 01:10:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29680 states. [2020-10-14 01:10:19,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29680 states to 29680 states and 38898 transitions. [2020-10-14 01:10:19,554 INFO L78 Accepts]: Start accepts. Automaton has 29680 states and 38898 transitions. Word has length 882 [2020-10-14 01:10:19,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:10:19,555 INFO L479 AbstractCegarLoop]: Abstraction has 29680 states and 38898 transitions. [2020-10-14 01:10:19,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:10:19,555 INFO L276 IsEmpty]: Start isEmpty. Operand 29680 states and 38898 transitions. [2020-10-14 01:10:19,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2020-10-14 01:10:19,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:10:19,649 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:10:19,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 01:10:19,650 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:10:19,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:10:19,650 INFO L82 PathProgramCache]: Analyzing trace with hash 59954155, now seen corresponding path program 1 times [2020-10-14 01:10:19,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:10:19,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096955792] [2020-10-14 01:10:19,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:10:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:19,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:19,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:19,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:24,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:24,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 935 [2020-10-14 01:10:24,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:10:24,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 01:10:24,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:24,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:24,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:10:24,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 01:10:24,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 01:10:24,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:24,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:10:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:24,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:24,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:24,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:10:24,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:24,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:10:24,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:24,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:24,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:10:24,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:24,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:10:24,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:24,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:10:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:24,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:24,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:24,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 01:10:24,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:24,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 01:10:24,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:24,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:24,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:10:24,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:24,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:10:24,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:24,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 01:10:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:24,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:24,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:24,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:10:24,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:24,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 01:10:24,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:24,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:24,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:10:24,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:24,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:10:24,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:24,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 01:10:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:24,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:25,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:25,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:10:25,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:25,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 01:10:25,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:25,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:10:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:10:25,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 01:10:25,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:25,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-14 01:10:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:25,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:25,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:25,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 01:10:25,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:25,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 01:10:25,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:25,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:25,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:10:25,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 01:10:25,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:10:25,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:25,442 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 155 proven. 19 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-14 01:10:25,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096955792] [2020-10-14 01:10:25,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:10:25,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:10:25,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63410195] [2020-10-14 01:10:25,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:10:25,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:10:25,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:10:25,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:10:25,446 INFO L87 Difference]: Start difference. First operand 29680 states and 38898 transitions. Second operand 7 states. [2020-10-14 01:10:35,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:10:35,385 INFO L93 Difference]: Finished difference Result 59592 states and 79396 transitions. [2020-10-14 01:10:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:10:35,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 913 [2020-10-14 01:10:35,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:10:35,490 INFO L225 Difference]: With dead ends: 59592 [2020-10-14 01:10:35,490 INFO L226 Difference]: Without dead ends: 29926 [2020-10-14 01:10:35,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:10:35,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29926 states. [2020-10-14 01:10:36,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29926 to 29742. [2020-10-14 01:10:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29742 states. [2020-10-14 01:10:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29742 states to 29742 states and 37815 transitions. [2020-10-14 01:10:36,227 INFO L78 Accepts]: Start accepts. Automaton has 29742 states and 37815 transitions. Word has length 913 [2020-10-14 01:10:36,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:10:36,228 INFO L479 AbstractCegarLoop]: Abstraction has 29742 states and 37815 transitions. [2020-10-14 01:10:36,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:10:36,228 INFO L276 IsEmpty]: Start isEmpty. Operand 29742 states and 37815 transitions. [2020-10-14 01:10:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 945 [2020-10-14 01:10:36,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:10:36,327 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:10:36,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 01:10:36,327 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:10:36,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:10:36,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1050666232, now seen corresponding path program 1 times [2020-10-14 01:10:36,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:10:36,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286014736] [2020-10-14 01:10:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:10:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:36,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:36,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:36,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:37,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:37,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:41,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:41,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 968 [2020-10-14 01:10:41,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:10:41,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 01:10:41,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:41,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:41,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:10:41,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 01:10:41,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 01:10:41,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:41,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:10:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:41,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:41,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:41,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:10:41,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:10:41,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:41,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:10:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:10:41,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:41,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:10:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:41,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:41,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:41,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 01:10:41,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:41,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 01:10:41,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:41,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:41,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:10:41,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:41,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:10:41,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:41,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 01:10:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:41,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:41,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:41,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:10:41,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:41,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:10:41,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:41,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:41,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:10:41,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:41,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:10:41,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:41,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 01:10:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:41,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:41,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:41,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 01:10:41,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:41,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 01:10:41,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:41,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:41,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:10:41,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:10:41,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 01:10:41,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 01:10:41,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 01:10:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:41,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:41,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:41,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:10:41,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:41,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 01:10:41,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:41,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:41,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:10:41,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:10:41,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 01:10:41,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:41,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 01:10:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:41,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:41,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:10:41,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 01:10:41,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:10:41,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 01:10:41,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:10:41,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:10:41,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:10:41,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 01:10:41,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:10:41,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:10:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 220 proven. 19 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 01:10:42,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286014736] [2020-10-14 01:10:42,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:10:42,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:10:42,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932586566] [2020-10-14 01:10:42,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:10:42,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:10:42,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:10:42,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:10:42,366 INFO L87 Difference]: Start difference. First operand 29742 states and 37815 transitions. Second operand 7 states. [2020-10-14 01:10:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:10:54,174 INFO L93 Difference]: Finished difference Result 81078 states and 106558 transitions. [2020-10-14 01:10:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 01:10:54,175 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 944 [2020-10-14 01:10:54,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:10:54,354 INFO L225 Difference]: With dead ends: 81078 [2020-10-14 01:10:54,354 INFO L226 Difference]: Without dead ends: 51350 [2020-10-14 01:10:54,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:10:54,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51350 states. [2020-10-14 01:10:55,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51350 to 51223. [2020-10-14 01:10:55,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51223 states. [2020-10-14 01:10:55,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51223 states to 51223 states and 65745 transitions. [2020-10-14 01:10:55,787 INFO L78 Accepts]: Start accepts. Automaton has 51223 states and 65745 transitions. Word has length 944 [2020-10-14 01:10:55,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:10:55,788 INFO L479 AbstractCegarLoop]: Abstraction has 51223 states and 65745 transitions. [2020-10-14 01:10:55,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:10:55,788 INFO L276 IsEmpty]: Start isEmpty. Operand 51223 states and 65745 transitions. [2020-10-14 01:10:55,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2020-10-14 01:10:55,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:10:55,882 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:10:55,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 01:10:55,883 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:10:55,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:10:55,884 INFO L82 PathProgramCache]: Analyzing trace with hash 287761975, now seen corresponding path program 1 times [2020-10-14 01:10:55,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:10:55,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572976454] [2020-10-14 01:10:55,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:10:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:10:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:56,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:56,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:10:56,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:00,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:00,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 993 [2020-10-14 01:11:00,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:11:00,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 01:11:00,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:00,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:00,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:00,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 01:11:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 01:11:00,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:01,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:11:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:01,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:01,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:01,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:11:01,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:01,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:11:01,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:01,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:01,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:01,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:11:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:01,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:01,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:01,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 01:11:01,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:01,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:11:01,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:01,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:01,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:01,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 01:11:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:01,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:01,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:01,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 01:11:01,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:01,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 01:11:01,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:01,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:01,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:11:01,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:01,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 01:11:01,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:01,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 01:11:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:01,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:01,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:01,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 01:11:01,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 01:11:01,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:01,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:11:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 01:11:01,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:01,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-14 01:11:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:01,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:01,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:01,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 01:11:01,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:01,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 01:11:01,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:01,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:01,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:01,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 01:11:01,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:01,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:01,738 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 213 proven. 27 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-14 01:11:01,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572976454] [2020-10-14 01:11:01,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:11:01,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:11:01,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427994918] [2020-10-14 01:11:01,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:11:01,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:11:01,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:11:01,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:11:01,740 INFO L87 Difference]: Start difference. First operand 51223 states and 65745 transitions. Second operand 7 states. [2020-10-14 01:11:14,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:11:14,040 INFO L93 Difference]: Finished difference Result 117280 states and 156521 transitions. [2020-10-14 01:11:14,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:11:14,041 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 971 [2020-10-14 01:11:14,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:11:14,476 INFO L225 Difference]: With dead ends: 117280 [2020-10-14 01:11:14,476 INFO L226 Difference]: Without dead ends: 66071 [2020-10-14 01:11:14,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:11:14,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66071 states. [2020-10-14 01:11:15,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66071 to 65659. [2020-10-14 01:11:15,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65659 states. [2020-10-14 01:11:15,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65659 states to 65659 states and 80289 transitions. [2020-10-14 01:11:15,561 INFO L78 Accepts]: Start accepts. Automaton has 65659 states and 80289 transitions. Word has length 971 [2020-10-14 01:11:15,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:11:15,562 INFO L479 AbstractCegarLoop]: Abstraction has 65659 states and 80289 transitions. [2020-10-14 01:11:15,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:11:15,562 INFO L276 IsEmpty]: Start isEmpty. Operand 65659 states and 80289 transitions. [2020-10-14 01:11:15,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2020-10-14 01:11:15,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:11:15,658 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:11:15,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 01:11:15,659 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:11:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:11:15,660 INFO L82 PathProgramCache]: Analyzing trace with hash 650856816, now seen corresponding path program 1 times [2020-10-14 01:11:15,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:11:15,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577591006] [2020-10-14 01:11:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:11:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:15,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:15,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:15,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:16,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:16,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:20,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:20,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1073 [2020-10-14 01:11:20,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:11:20,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 01:11:20,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:20,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-14 01:11:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 01:11:20,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:20,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:11:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:20,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:20,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:20,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:11:20,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:20,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:11:20,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:20,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:20,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:20,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:20,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:20,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:20,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:11:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:20,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:20,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:20,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 01:11:20,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:20,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:11:20,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:20,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:20,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:20,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 01:11:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:20,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:20,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:20,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 01:11:20,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:20,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 01:11:20,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:20,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:20,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:20,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:20,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:20,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:20,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 01:11:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:21,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:21,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:21,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 01:11:21,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:21,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 01:11:21,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:21,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:11:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 01:11:21,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:21,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 01:11:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:21,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:21,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:21,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 01:11:21,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:21,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 01:11:21,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:21,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:11:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 01:11:21,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:21,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-14 01:11:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:21,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:21,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:21,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 01:11:21,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:21,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 01:11:21,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:21,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:21,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:21,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 01:11:21,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:21,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:21,845 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 372 proven. 27 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-10-14 01:11:21,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577591006] [2020-10-14 01:11:21,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:11:21,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:11:21,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871895274] [2020-10-14 01:11:21,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:11:21,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:11:21,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:11:21,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:11:21,848 INFO L87 Difference]: Start difference. First operand 65659 states and 80289 transitions. Second operand 7 states. [2020-10-14 01:11:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:11:34,107 INFO L93 Difference]: Finished difference Result 143177 states and 186907 transitions. [2020-10-14 01:11:34,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 01:11:34,108 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1049 [2020-10-14 01:11:34,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:11:34,413 INFO L225 Difference]: With dead ends: 143177 [2020-10-14 01:11:34,413 INFO L226 Difference]: Without dead ends: 77532 [2020-10-14 01:11:34,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 01:11:34,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77532 states. [2020-10-14 01:11:35,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77532 to 74961. [2020-10-14 01:11:35,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74961 states. [2020-10-14 01:11:35,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74961 states to 74961 states and 92429 transitions. [2020-10-14 01:11:35,750 INFO L78 Accepts]: Start accepts. Automaton has 74961 states and 92429 transitions. Word has length 1049 [2020-10-14 01:11:35,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:11:35,750 INFO L479 AbstractCegarLoop]: Abstraction has 74961 states and 92429 transitions. [2020-10-14 01:11:35,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:11:35,750 INFO L276 IsEmpty]: Start isEmpty. Operand 74961 states and 92429 transitions. [2020-10-14 01:11:35,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1203 [2020-10-14 01:11:35,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:11:35,847 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:11:35,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 01:11:35,847 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:11:35,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:11:35,848 INFO L82 PathProgramCache]: Analyzing trace with hash 115219527, now seen corresponding path program 1 times [2020-10-14 01:11:35,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:11:35,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577997681] [2020-10-14 01:11:35,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:11:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:35,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:36,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:36,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:36,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:36,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:40,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:40,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1224 [2020-10-14 01:11:40,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:11:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 01:11:40,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:40,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 01:11:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-14 01:11:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:41,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:11:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:41,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:41,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:41,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:11:41,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:41,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 01:11:41,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:41,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:41,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:41,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:41,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:41,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:11:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:41,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:41,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:41,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 01:11:41,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 01:11:41,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:41,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:11:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 01:11:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:41,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 01:11:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:41,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:41,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:41,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 01:11:41,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 01:11:41,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:41,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:11:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 01:11:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:41,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-14 01:11:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:41,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:41,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:41,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 01:11:41,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:41,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 01:11:41,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:41,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:41,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-14 01:11:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:41,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:41,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-10-14 01:11:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:41,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:41,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:41,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 01:11:41,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:41,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 01:11:41,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:41,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:41,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:41,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-14 01:11:41,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:41,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 427 proven. 222 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-10-14 01:11:42,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577997681] [2020-10-14 01:11:42,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:11:42,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:11:42,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331795431] [2020-10-14 01:11:42,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:11:42,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:11:42,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:11:42,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:11:42,524 INFO L87 Difference]: Start difference. First operand 74961 states and 92429 transitions. Second operand 7 states. [2020-10-14 01:11:52,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 01:11:52,503 INFO L93 Difference]: Finished difference Result 137050 states and 167500 transitions. [2020-10-14 01:11:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 01:11:52,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1202 [2020-10-14 01:11:52,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 01:11:52,636 INFO L225 Difference]: With dead ends: 137050 [2020-10-14 01:11:52,636 INFO L226 Difference]: Without dead ends: 62091 [2020-10-14 01:11:52,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 01:11:52,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62091 states. [2020-10-14 01:11:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62091 to 61973. [2020-10-14 01:11:53,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61973 states. [2020-10-14 01:11:53,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61973 states to 61973 states and 71871 transitions. [2020-10-14 01:11:53,440 INFO L78 Accepts]: Start accepts. Automaton has 61973 states and 71871 transitions. Word has length 1202 [2020-10-14 01:11:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:11:53,441 INFO L479 AbstractCegarLoop]: Abstraction has 61973 states and 71871 transitions. [2020-10-14 01:11:53,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 01:11:53,441 INFO L276 IsEmpty]: Start isEmpty. Operand 61973 states and 71871 transitions. [2020-10-14 01:11:53,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1242 [2020-10-14 01:11:53,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:11:53,500 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 01:11:53,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 01:11:53,500 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:11:53,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:11:53,500 INFO L82 PathProgramCache]: Analyzing trace with hash 313118232, now seen corresponding path program 1 times [2020-10-14 01:11:53,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:11:53,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478829767] [2020-10-14 01:11:53,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:11:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:53,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:55,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:55,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:57,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:58,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:58,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1261 [2020-10-14 01:11:58,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 01:11:58,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 01:11:58,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:58,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:58,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:58,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 01:11:58,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-14 01:11:58,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:58,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:11:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:58,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:58,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:58,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:11:58,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:58,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 01:11:58,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:58,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:58,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:11:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:58,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:58,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:58,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 01:11:58,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:58,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 01:11:58,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:58,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:11:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:11:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:58,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 01:11:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:58,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:59,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:59,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 01:11:59,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:59,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 01:11:59,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:59,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:11:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:11:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 01:11:59,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:59,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-14 01:11:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:11:59,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:11:59,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:11:59,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-14 01:11:59,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:11:59,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 01:11:59,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:11:59,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:11:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:11:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:11:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 01:11:59,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:11:59,913 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 675 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-14 01:11:59,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478829767] [2020-10-14 01:11:59,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 01:11:59,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 01:11:59,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833356655] [2020-10-14 01:11:59,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 01:11:59,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 01:11:59,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 01:11:59,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 01:11:59,915 INFO L87 Difference]: Start difference. First operand 61973 states and 71871 transitions. Second operand 7 states.