/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/Problem16_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:43:00,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:43:00,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:43:00,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:43:00,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:43:00,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:43:00,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:43:00,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:43:00,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:43:00,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:43:00,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:43:00,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:43:00,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:43:00,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:43:00,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:43:00,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:43:00,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:43:00,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:43:00,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:43:00,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:43:00,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:43:00,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:43:00,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:43:00,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:43:00,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:43:00,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:43:00,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:43:00,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:43:00,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:43:00,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:43:00,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:43:00,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:43:00,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:43:00,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:43:00,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:43:00,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:43:00,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:43:00,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:43:00,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:43:00,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:43:00,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:43:00,142 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 03:43:00,186 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:43:00,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:43:00,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:43:00,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:43:00,194 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:43:00,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:43:00,194 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:43:00,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:43:00,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:43:00,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:43:00,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:43:00,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:43:00,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:43:00,197 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:43:00,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:43:00,198 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:43:00,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:43:00,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:43:00,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:43:00,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:43:00,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:43:00,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:43:00,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:43:00,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:43:00,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:43:00,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:43:00,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:43:00,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:43:00,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:43:00,203 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 03:43:00,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:43:00,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:43:00,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:43:00,581 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:43:00,581 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:43:00,582 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label18.c [2020-10-14 03:43:00,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b71724b7b/9d8382be8b6444fdaf0dcda775cfcbd2/FLAGa84c76742 [2020-10-14 03:43:01,328 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:43:01,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label18.c [2020-10-14 03:43:01,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b71724b7b/9d8382be8b6444fdaf0dcda775cfcbd2/FLAGa84c76742 [2020-10-14 03:43:01,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b71724b7b/9d8382be8b6444fdaf0dcda775cfcbd2 [2020-10-14 03:43:01,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:43:01,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:43:01,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:43:01,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:43:01,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:43:01,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:43:01" (1/1) ... [2020-10-14 03:43:01,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e979d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:01, skipping insertion in model container [2020-10-14 03:43:01,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:43:01" (1/1) ... [2020-10-14 03:43:01,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:43:01,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:43:02,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:43:02,358 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:43:02,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:43:02,848 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:43:02,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:02 WrapperNode [2020-10-14 03:43:02,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:43:02,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:43:02,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:43:02,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:43:02,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:02" (1/1) ... [2020-10-14 03:43:02,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:02" (1/1) ... [2020-10-14 03:43:02,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:02" (1/1) ... [2020-10-14 03:43:02,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:02" (1/1) ... [2020-10-14 03:43:03,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:02" (1/1) ... [2020-10-14 03:43:03,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:02" (1/1) ... [2020-10-14 03:43:03,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:02" (1/1) ... [2020-10-14 03:43:03,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:43:03,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:43:03,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:43:03,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:43:03,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:02" (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 03:43:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:43:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:43:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:43:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:43:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:43:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:43:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:43:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:43:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:43:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:43:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:43:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:43:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:43:05,582 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:43:05,582 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:43:05,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:43:05 BoogieIcfgContainer [2020-10-14 03:43:05,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:43:05,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:43:05,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:43:05,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:43:05,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:43:01" (1/3) ... [2020-10-14 03:43:05,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b49a146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:43:05, skipping insertion in model container [2020-10-14 03:43:05,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:43:02" (2/3) ... [2020-10-14 03:43:05,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b49a146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:43:05, skipping insertion in model container [2020-10-14 03:43:05,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:43:05" (3/3) ... [2020-10-14 03:43:05,600 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label18.c [2020-10-14 03:43:05,611 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:43:05,620 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:43:05,636 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:43:05,663 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:43:05,664 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:43:05,664 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:43:05,664 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:43:05,664 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:43:05,664 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:43:05,664 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:43:05,665 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:43:05,692 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:43:05,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 03:43:05,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:05,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:05,701 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:05,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:05,708 INFO L82 PathProgramCache]: Analyzing trace with hash 380431882, now seen corresponding path program 1 times [2020-10-14 03:43:05,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:05,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586539193] [2020-10-14 03:43:05,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:05,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:06,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:06,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 03:43:06,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:06,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-14 03:43:06,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:06,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:06,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:43:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:43:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 03:43:06,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:43:06,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:06,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:06,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:06,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:06,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:06,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:43:06,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:06,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:06,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:06,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:43:06,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:06,224 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 03:43:06,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586539193] [2020-10-14 03:43:06,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:43:06,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:43:06,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273369619] [2020-10-14 03:43:06,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:43:06,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:06,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:43:06,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:43:06,251 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:43:09,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:09,859 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 03:43:09,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:43:09,863 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-14 03:43:09,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:09,884 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:43:09,885 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:43:09,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:43:09,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:43:10,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 03:43:10,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 03:43:10,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-14 03:43:10,039 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 13 [2020-10-14 03:43:10,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:10,040 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-14 03:43:10,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:43:10,040 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-14 03:43:10,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 03:43:10,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:10,045 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] [2020-10-14 03:43:10,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:43:10,046 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:10,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:10,046 INFO L82 PathProgramCache]: Analyzing trace with hash -590510589, now seen corresponding path program 1 times [2020-10-14 03:43:10,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:10,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066401000] [2020-10-14 03:43:10,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:10,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:10,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:10,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:10,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 03:43:10,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:43:10,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-10-14 03:43:10,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:10,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:10,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:43:10,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 03:43:10,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:10,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:10,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:10,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:10,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:10,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:10,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:43:10,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:10,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:10,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:10,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:10,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:10,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:10,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:10,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:11,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:11,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:43:11,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:11,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:43:11,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:11,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:43:11,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:11,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:43:11,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066401000] [2020-10-14 03:43:11,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:11,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:43:11,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652854706] [2020-10-14 03:43:11,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:43:11,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:11,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:43:11,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:43:11,096 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 6 states. [2020-10-14 03:43:16,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:16,126 INFO L93 Difference]: Finished difference Result 2741 states and 4344 transitions. [2020-10-14 03:43:16,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:43:16,127 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-10-14 03:43:16,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:16,146 INFO L225 Difference]: With dead ends: 2741 [2020-10-14 03:43:16,148 INFO L226 Difference]: Without dead ends: 2058 [2020-10-14 03:43:16,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:43:16,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2020-10-14 03:43:16,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2054. [2020-10-14 03:43:16,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2054 states. [2020-10-14 03:43:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2930 transitions. [2020-10-14 03:43:16,237 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2930 transitions. Word has length 88 [2020-10-14 03:43:16,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:16,238 INFO L479 AbstractCegarLoop]: Abstraction has 2054 states and 2930 transitions. [2020-10-14 03:43:16,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:43:16,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2930 transitions. [2020-10-14 03:43:16,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-14 03:43:16,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:16,250 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:16,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:43:16,251 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:16,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:16,251 INFO L82 PathProgramCache]: Analyzing trace with hash -775138097, now seen corresponding path program 1 times [2020-10-14 03:43:16,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:16,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706526570] [2020-10-14 03:43:16,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:16,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:16,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:16,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:16,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:20,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:20,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:21,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:21,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-14 03:43:21,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:43:21,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 03:43:21,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:21,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-14 03:43:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 03:43:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:21,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:21,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:21,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:21,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:21,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:21,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:43:21,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:21,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:21,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:21,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:21,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:21,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:21,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:43:21,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:21,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:43:21,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:21,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:21,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:21,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:21,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:21,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:21,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:43:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:21,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:21,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:21,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:43:21,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:21,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:43:21,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:21,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:21,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:21,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 03:43:21,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:43:21,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 03:43:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:21,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:21,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:21,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:43:21,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:21,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 03:43:21,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:21,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:21,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:43:21,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-14 03:43:21,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706526570] [2020-10-14 03:43:21,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:21,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:21,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258417938] [2020-10-14 03:43:21,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:21,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:21,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:21,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:21,903 INFO L87 Difference]: Start difference. First operand 2054 states and 2930 transitions. Second operand 7 states. [2020-10-14 03:43:26,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:26,047 INFO L93 Difference]: Finished difference Result 5165 states and 7601 transitions. [2020-10-14 03:43:26,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:43:26,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2020-10-14 03:43:26,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:26,073 INFO L225 Difference]: With dead ends: 5165 [2020-10-14 03:43:26,073 INFO L226 Difference]: Without dead ends: 3117 [2020-10-14 03:43:26,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:43:26,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2020-10-14 03:43:26,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 2411. [2020-10-14 03:43:26,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2411 states. [2020-10-14 03:43:26,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 3425 transitions. [2020-10-14 03:43:26,183 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 3425 transitions. Word has length 250 [2020-10-14 03:43:26,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:26,184 INFO L479 AbstractCegarLoop]: Abstraction has 2411 states and 3425 transitions. [2020-10-14 03:43:26,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:26,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 3425 transitions. [2020-10-14 03:43:26,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-14 03:43:26,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:26,196 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:26,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:43:26,196 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:26,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:26,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1932173794, now seen corresponding path program 1 times [2020-10-14 03:43:26,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:26,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933823819] [2020-10-14 03:43:26,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:26,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:26,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:26,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:28,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:28,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:28,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:31,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:31,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 345 [2020-10-14 03:43:31,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:43:31,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 03:43:31,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:31,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:43:31,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:43:31,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:31,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:31,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:31,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:31,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:31,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:31,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:43:31,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:31,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:43:31,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:31,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:31,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:31,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:43:31,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:31,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:43:31,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:31,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:31,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:31,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:31,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:43:31,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:31,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:43:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:31,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:31,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:31,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:43:31,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:31,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 03:43:31,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:31,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:43:31,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:31,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-14 03:43:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:31,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:31,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:31,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:43:31,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:31,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:43:31,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:31,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:31,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:31,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:43:31,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:31,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:32,023 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 119 proven. 73 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-14 03:43:32,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933823819] [2020-10-14 03:43:32,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:32,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:32,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013845312] [2020-10-14 03:43:32,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:32,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:32,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:32,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:32,032 INFO L87 Difference]: Start difference. First operand 2411 states and 3425 transitions. Second operand 7 states. [2020-10-14 03:43:35,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:35,667 INFO L93 Difference]: Finished difference Result 5887 states and 8292 transitions. [2020-10-14 03:43:35,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:43:35,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 331 [2020-10-14 03:43:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:35,696 INFO L225 Difference]: With dead ends: 5887 [2020-10-14 03:43:35,697 INFO L226 Difference]: Without dead ends: 3482 [2020-10-14 03:43:35,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:43:35,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2020-10-14 03:43:35,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3119. [2020-10-14 03:43:35,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3119 states. [2020-10-14 03:43:35,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4038 transitions. [2020-10-14 03:43:35,807 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4038 transitions. Word has length 331 [2020-10-14 03:43:35,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:35,809 INFO L479 AbstractCegarLoop]: Abstraction has 3119 states and 4038 transitions. [2020-10-14 03:43:35,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:35,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4038 transitions. [2020-10-14 03:43:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2020-10-14 03:43:35,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:35,821 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 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 03:43:35,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:43:35,821 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:35,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:35,822 INFO L82 PathProgramCache]: Analyzing trace with hash -674963217, now seen corresponding path program 1 times [2020-10-14 03:43:35,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:35,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426979748] [2020-10-14 03:43:35,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:35,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:36,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:36,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:40,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:40,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:40,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:40,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 476 [2020-10-14 03:43:40,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:43:40,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-14 03:43:40,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:40,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-14 03:43:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:43:40,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:41,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:41,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:41,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:41,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:41,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:41,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:43:41,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:41,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:41,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:41,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:41,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:41,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:41,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:41,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:41,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:41,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:43:41,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:41,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:43:41,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:41,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:41,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:43:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:41,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:41,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:41,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:43:41,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:41,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:43:41,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:41,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:41,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:41,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:41,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:43:41,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:41,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 03:43:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:41,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:41,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:41,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:43:41,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:41,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 03:43:41,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:41,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:41,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:43:41,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:41,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2020-10-14 03:43:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:41,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:41,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:41,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:43:41,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:41,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:43:41,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:41,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:43:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 260 proven. 73 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-10-14 03:43:41,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426979748] [2020-10-14 03:43:41,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:41,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:43:41,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835934591] [2020-10-14 03:43:41,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:43:41,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:41,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:43:41,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:43:41,959 INFO L87 Difference]: Start difference. First operand 3119 states and 4038 transitions. Second operand 8 states. [2020-10-14 03:43:47,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:47,185 INFO L93 Difference]: Finished difference Result 7654 states and 10051 transitions. [2020-10-14 03:43:47,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:43:47,185 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 460 [2020-10-14 03:43:47,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:47,208 INFO L225 Difference]: With dead ends: 7654 [2020-10-14 03:43:47,208 INFO L226 Difference]: Without dead ends: 4541 [2020-10-14 03:43:47,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:43:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4541 states. [2020-10-14 03:43:47,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4541 to 4526. [2020-10-14 03:43:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4526 states. [2020-10-14 03:43:47,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 5800 transitions. [2020-10-14 03:43:47,342 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 5800 transitions. Word has length 460 [2020-10-14 03:43:47,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:47,342 INFO L479 AbstractCegarLoop]: Abstraction has 4526 states and 5800 transitions. [2020-10-14 03:43:47,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:43:47,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 5800 transitions. [2020-10-14 03:43:47,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2020-10-14 03:43:47,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:47,363 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-14 03:43:47,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:43:47,363 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:47,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:47,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1693380163, now seen corresponding path program 1 times [2020-10-14 03:43:47,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:47,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799433150] [2020-10-14 03:43:47,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:47,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:47,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:47,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:48,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:48,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:52,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:52,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 612 [2020-10-14 03:43:52,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:43:52,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 03:43:52,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:52,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 448 [2020-10-14 03:43:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 03:43:52,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:43:52,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:52,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:52,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:52,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:52,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:52,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:52,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:52,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:52,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:52,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:52,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:52,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:52,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:43:52,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:52,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:43:52,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:52,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:52,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:52,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:52,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:52,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:52,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:43:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:52,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:52,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:52,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:43:52,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:52,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:43:52,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:52,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:52,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:52,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:52,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:52,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:43:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:52,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:52,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:52,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:43:52,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:52,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:43:52,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:52,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:52,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:52,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:43:52,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:53,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:43:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:53,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:53,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:53,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:43:53,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:53,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 03:43:53,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:53,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:53,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 03:43:53,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 359 proven. 2 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-14 03:43:53,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799433150] [2020-10-14 03:43:53,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:53,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:53,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556819029] [2020-10-14 03:43:53,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:53,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:53,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:53,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:53,703 INFO L87 Difference]: Start difference. First operand 4526 states and 5800 transitions. Second operand 7 states. [2020-10-14 03:43:58,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:58,047 INFO L93 Difference]: Finished difference Result 11817 states and 15389 transitions. [2020-10-14 03:43:58,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:43:58,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 596 [2020-10-14 03:43:58,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:58,079 INFO L225 Difference]: With dead ends: 11817 [2020-10-14 03:43:58,079 INFO L226 Difference]: Without dead ends: 6235 [2020-10-14 03:43:58,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:43:58,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6235 states. [2020-10-14 03:43:58,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6235 to 6203. [2020-10-14 03:43:58,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6203 states. [2020-10-14 03:43:58,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6203 states to 6203 states and 6855 transitions. [2020-10-14 03:43:58,272 INFO L78 Accepts]: Start accepts. Automaton has 6203 states and 6855 transitions. Word has length 596 [2020-10-14 03:43:58,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:58,274 INFO L479 AbstractCegarLoop]: Abstraction has 6203 states and 6855 transitions. [2020-10-14 03:43:58,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:58,274 INFO L276 IsEmpty]: Start isEmpty. Operand 6203 states and 6855 transitions. [2020-10-14 03:43:58,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2020-10-14 03:43:58,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:58,313 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-14 03:43:58,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:43:58,314 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:58,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:58,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1920921546, now seen corresponding path program 1 times [2020-10-14 03:43:58,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:58,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442400509] [2020-10-14 03:43:58,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:58,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:58,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:58,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:58,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:00,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:03,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:03,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 651 [2020-10-14 03:44:03,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:44:03,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 03:44:03,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:03,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:03,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 448 [2020-10-14 03:44:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-14 03:44:03,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:03,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:03,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:03,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:03,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:03,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:03,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:03,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:03,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:03,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:03,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:03,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:03,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:03,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:03,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:03,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:03,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:03,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:03,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:44:03,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:03,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:03,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:03,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:03,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:03,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:03,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:44:03,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:03,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:44:03,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:03,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:03,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:03,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:03,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:03,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:44:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:03,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:03,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:03,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:03,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:03,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:44:03,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:03,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:44:03,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:03,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:44:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:03,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:04,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:04,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:44:04,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:04,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 03:44:04,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:04,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:04,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:04,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:04,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-14 03:44:04,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:04,367 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 398 proven. 2 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-14 03:44:04,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442400509] [2020-10-14 03:44:04,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:04,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:04,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661857050] [2020-10-14 03:44:04,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:04,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:04,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:04,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:04,370 INFO L87 Difference]: Start difference. First operand 6203 states and 6855 transitions. Second operand 7 states. [2020-10-14 03:44:07,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:07,782 INFO L93 Difference]: Finished difference Result 15258 states and 17339 transitions. [2020-10-14 03:44:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:07,783 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 635 [2020-10-14 03:44:07,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:07,850 INFO L225 Difference]: With dead ends: 15258 [2020-10-14 03:44:07,851 INFO L226 Difference]: Without dead ends: 8718 [2020-10-14 03:44:07,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:07,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2020-10-14 03:44:08,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 8600. [2020-10-14 03:44:08,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8600 states. [2020-10-14 03:44:08,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 9447 transitions. [2020-10-14 03:44:08,105 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 9447 transitions. Word has length 635 [2020-10-14 03:44:08,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:08,106 INFO L479 AbstractCegarLoop]: Abstraction has 8600 states and 9447 transitions. [2020-10-14 03:44:08,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:08,106 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 9447 transitions. [2020-10-14 03:44:08,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2020-10-14 03:44:08,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:08,122 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2020-10-14 03:44:08,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:44:08,122 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:08,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:08,123 INFO L82 PathProgramCache]: Analyzing trace with hash -2036357082, now seen corresponding path program 1 times [2020-10-14 03:44:08,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:08,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515144129] [2020-10-14 03:44:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:08,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:08,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:08,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:08,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:09,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 713 [2020-10-14 03:44:13,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:44:13,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 03:44:13,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:13,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:44:13,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:44:13,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:13,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:13,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:13,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:13,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:13,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:13,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:13,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:13,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:13,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:13,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:44:13,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:13,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:13,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:13,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:13,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:44:13,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:13,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:44:13,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:13,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:13,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:44:13,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:13,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:44:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:13,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:13,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 03:44:13,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:44:13,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:13,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:44:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:44:13,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:13,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:44:13,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:13,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:44:13,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:13,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:14,145 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 216 proven. 114 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-10-14 03:44:14,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515144129] [2020-10-14 03:44:14,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:14,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:14,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828890170] [2020-10-14 03:44:14,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:14,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:14,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:14,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:14,149 INFO L87 Difference]: Start difference. First operand 8600 states and 9447 transitions. Second operand 7 states. [2020-10-14 03:44:18,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:18,525 INFO L93 Difference]: Finished difference Result 22131 states and 24964 transitions. [2020-10-14 03:44:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:18,526 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 697 [2020-10-14 03:44:18,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:18,578 INFO L225 Difference]: With dead ends: 22131 [2020-10-14 03:44:18,578 INFO L226 Difference]: Without dead ends: 13537 [2020-10-14 03:44:18,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:18,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13537 states. [2020-10-14 03:44:18,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13537 to 13040. [2020-10-14 03:44:18,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13040 states. [2020-10-14 03:44:18,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13040 states to 13040 states and 14204 transitions. [2020-10-14 03:44:18,904 INFO L78 Accepts]: Start accepts. Automaton has 13040 states and 14204 transitions. Word has length 697 [2020-10-14 03:44:18,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:18,905 INFO L479 AbstractCegarLoop]: Abstraction has 13040 states and 14204 transitions. [2020-10-14 03:44:18,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:18,905 INFO L276 IsEmpty]: Start isEmpty. Operand 13040 states and 14204 transitions. [2020-10-14 03:44:18,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2020-10-14 03:44:18,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:18,926 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2020-10-14 03:44:18,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:44:18,926 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:18,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:18,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1318296226, now seen corresponding path program 1 times [2020-10-14 03:44:18,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:18,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983865122] [2020-10-14 03:44:18,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:19,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:19,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:19,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:20,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:24,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:24,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 741 [2020-10-14 03:44:24,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:24,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 03:44:24,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:24,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:24,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:24,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:44:24,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:44:24,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:24,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:24,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:24,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:24,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:24,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:24,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:24,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:24,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:24,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:24,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:24,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:24,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:24,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:24,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:24,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:24,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:44:24,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:24,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:24,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:24,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:24,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:24,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:24,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:24,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:24,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:24,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:44:24,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:44:24,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:24,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:24,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:24,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:24,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:44:24,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:24,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:44:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:24,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:24,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:24,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:44:24,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:44:24,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:24,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:44:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:24,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:44:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:24,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:24,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:24,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:44:24,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:24,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:44:24,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:24,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:24,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:24,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:44:24,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:24,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:24,967 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 244 proven. 143 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2020-10-14 03:44:24,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983865122] [2020-10-14 03:44:24,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:24,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:24,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926972121] [2020-10-14 03:44:24,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:24,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:24,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:24,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:24,970 INFO L87 Difference]: Start difference. First operand 13040 states and 14204 transitions. Second operand 7 states. [2020-10-14 03:44:28,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:28,605 INFO L93 Difference]: Finished difference Result 29653 states and 33487 transitions. [2020-10-14 03:44:28,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:28,606 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 725 [2020-10-14 03:44:28,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:28,678 INFO L225 Difference]: With dead ends: 29653 [2020-10-14 03:44:28,678 INFO L226 Difference]: Without dead ends: 16976 [2020-10-14 03:44:28,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 03:44:28,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16976 states. [2020-10-14 03:44:29,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16976 to 16772. [2020-10-14 03:44:29,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16772 states. [2020-10-14 03:44:29,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16772 states to 16772 states and 18302 transitions. [2020-10-14 03:44:29,097 INFO L78 Accepts]: Start accepts. Automaton has 16772 states and 18302 transitions. Word has length 725 [2020-10-14 03:44:29,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:29,098 INFO L479 AbstractCegarLoop]: Abstraction has 16772 states and 18302 transitions. [2020-10-14 03:44:29,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:29,099 INFO L276 IsEmpty]: Start isEmpty. Operand 16772 states and 18302 transitions. [2020-10-14 03:44:29,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2020-10-14 03:44:29,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:29,125 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 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, 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, 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] [2020-10-14 03:44:29,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:44:29,125 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:29,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:29,126 INFO L82 PathProgramCache]: Analyzing trace with hash -674789710, now seen corresponding path program 1 times [2020-10-14 03:44:29,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:29,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364830478] [2020-10-14 03:44:29,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:29,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:29,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:29,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:31,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:34,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:34,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 767 [2020-10-14 03:44:34,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:34,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-14 03:44:34,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:34,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:34,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:34,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:44:34,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:44:34,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:34,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:34,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:34,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:34,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:34,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:34,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:34,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:34,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:34,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:34,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:34,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:34,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:34,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:34,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:34,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:44:34,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:34,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:34,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:34,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:34,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:34,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:34,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:44:34,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:34,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:44:34,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:34,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:34,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:34,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:44:34,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:34,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:44:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:34,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:34,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:34,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:44:34,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:34,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 03:44:34,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:34,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:44:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:34,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:44:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:34,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:35,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:35,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:44:35,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:35,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:44:35,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:35,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:35,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:35,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:44:35,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:35,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:35,406 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 270 proven. 143 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2020-10-14 03:44:35,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364830478] [2020-10-14 03:44:35,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:35,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:35,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278752569] [2020-10-14 03:44:35,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:35,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:35,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:35,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:35,408 INFO L87 Difference]: Start difference. First operand 16772 states and 18302 transitions. Second operand 7 states. [2020-10-14 03:44:43,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:43,041 INFO L93 Difference]: Finished difference Result 36912 states and 40651 transitions. [2020-10-14 03:44:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:43,042 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 751 [2020-10-14 03:44:43,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:43,098 INFO L225 Difference]: With dead ends: 36912 [2020-10-14 03:44:43,098 INFO L226 Difference]: Without dead ends: 20501 [2020-10-14 03:44:43,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:43,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20501 states. [2020-10-14 03:44:43,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20501 to 20497. [2020-10-14 03:44:43,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20497 states. [2020-10-14 03:44:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20497 states to 20497 states and 22576 transitions. [2020-10-14 03:44:43,499 INFO L78 Accepts]: Start accepts. Automaton has 20497 states and 22576 transitions. Word has length 751 [2020-10-14 03:44:43,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:43,500 INFO L479 AbstractCegarLoop]: Abstraction has 20497 states and 22576 transitions. [2020-10-14 03:44:43,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:43,501 INFO L276 IsEmpty]: Start isEmpty. Operand 20497 states and 22576 transitions. [2020-10-14 03:44:43,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2020-10-14 03:44:43,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:43,535 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2020-10-14 03:44:43,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:44:43,536 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:43,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:43,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1396299194, now seen corresponding path program 1 times [2020-10-14 03:44:43,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:43,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227933453] [2020-10-14 03:44:43,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:43,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:43,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:45,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:47,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:47,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:48,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:48,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 825 [2020-10-14 03:44:48,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:44:48,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-14 03:44:48,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:48,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:48,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:48,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:44:48,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 03:44:48,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:48,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:48,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:48,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:48,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:48,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:48,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:48,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:48,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:48,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:48,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:48,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:48,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:48,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:48,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:48,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:48,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:48,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 03:44:48,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:48,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:44:48,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:49,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:49,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:49,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:49,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:44:49,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:49,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 03:44:49,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:49,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 03:44:49,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:49,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 03:44:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:49,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:49,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:49,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:44:49,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:49,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:44:49,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:49,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:49,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:44:49,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:49,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:49,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-14 03:44:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:49,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:49,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:49,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:44:49,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:49,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:44:49,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:49,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:49,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:49,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:44:49,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:49,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 182 proven. 293 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2020-10-14 03:44:49,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227933453] [2020-10-14 03:44:49,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:49,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:49,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312731783] [2020-10-14 03:44:49,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:49,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:49,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:49,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:49,834 INFO L87 Difference]: Start difference. First operand 20497 states and 22576 transitions. Second operand 7 states. [2020-10-14 03:44:54,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:54,495 INFO L93 Difference]: Finished difference Result 44969 states and 50745 transitions. [2020-10-14 03:44:54,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:54,496 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 809 [2020-10-14 03:44:54,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:54,572 INFO L225 Difference]: With dead ends: 44969 [2020-10-14 03:44:54,572 INFO L226 Difference]: Without dead ends: 25166 [2020-10-14 03:44:54,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:54,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25166 states. [2020-10-14 03:44:55,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25166 to 23457. [2020-10-14 03:44:55,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23457 states. [2020-10-14 03:44:55,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23457 states to 23457 states and 25977 transitions. [2020-10-14 03:44:55,232 INFO L78 Accepts]: Start accepts. Automaton has 23457 states and 25977 transitions. Word has length 809 [2020-10-14 03:44:55,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:55,233 INFO L479 AbstractCegarLoop]: Abstraction has 23457 states and 25977 transitions. [2020-10-14 03:44:55,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:55,233 INFO L276 IsEmpty]: Start isEmpty. Operand 23457 states and 25977 transitions. [2020-10-14 03:44:55,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2020-10-14 03:44:55,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:55,276 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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] [2020-10-14 03:44:55,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:44:55,277 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:55,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:55,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1195456069, now seen corresponding path program 1 times [2020-10-14 03:44:55,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:55,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31645755] [2020-10-14 03:44:55,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:55,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:55,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:55,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:56,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:00,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:00,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 844 [2020-10-14 03:45:00,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:45:00,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 03:45:00,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:00,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:45:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:45:00,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:00,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:00,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:00,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:00,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:00,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:00,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:00,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:00,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:00,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:00,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:00,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:00,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:00,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:00,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:00,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:00,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:00,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:45:00,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:00,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:00,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:00,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:45:00,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:00,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:00,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:00,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:00,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:45:00,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:00,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 03:45:00,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:00,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:45:00,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:01,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 03:45:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:01,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:01,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:01,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:45:01,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:01,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:45:01,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:01,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:45:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:01,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:01,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 03:45:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:01,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:01,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:01,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:45:01,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:01,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:45:01,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:01,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:01,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:01,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:45:01,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:01,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:01,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 230 proven. 312 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2020-10-14 03:45:01,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31645755] [2020-10-14 03:45:01,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:01,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:01,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418613335] [2020-10-14 03:45:01,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:01,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:01,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:01,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:01,985 INFO L87 Difference]: Start difference. First operand 23457 states and 25977 transitions. Second operand 7 states. [2020-10-14 03:45:05,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:05,486 INFO L93 Difference]: Finished difference Result 46567 states and 51632 transitions. [2020-10-14 03:45:05,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:45:05,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 828 [2020-10-14 03:45:05,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:05,555 INFO L225 Difference]: With dead ends: 46567 [2020-10-14 03:45:05,556 INFO L226 Difference]: Without dead ends: 23804 [2020-10-14 03:45:05,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:45:05,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23804 states. [2020-10-14 03:45:05,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23804 to 23800. [2020-10-14 03:45:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23800 states. [2020-10-14 03:45:06,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23800 states to 23800 states and 26290 transitions. [2020-10-14 03:45:06,048 INFO L78 Accepts]: Start accepts. Automaton has 23800 states and 26290 transitions. Word has length 828 [2020-10-14 03:45:06,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:06,049 INFO L479 AbstractCegarLoop]: Abstraction has 23800 states and 26290 transitions. [2020-10-14 03:45:06,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:06,049 INFO L276 IsEmpty]: Start isEmpty. Operand 23800 states and 26290 transitions. [2020-10-14 03:45:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2020-10-14 03:45:06,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:06,089 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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 03:45:06,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:45:06,089 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:06,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:06,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1684381610, now seen corresponding path program 1 times [2020-10-14 03:45:06,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:06,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731285421] [2020-10-14 03:45:06,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:06,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:06,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:06,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:07,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:11,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:11,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 859 [2020-10-14 03:45:11,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:45:11,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 03:45:11,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:11,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:45:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:45:11,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:11,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:11,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:11,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:11,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:11,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:11,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:45:11,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:11,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:11,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:11,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:11,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:11,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:11,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:11,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:11,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:45:11,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:11,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:11,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:11,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:11,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:11,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:11,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:45:11,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:11,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:45:11,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:11,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:45:11,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:11,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:45:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:11,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:11,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:11,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:45:11,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 03:45:11,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:11,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:45:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:12,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-14 03:45:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:12,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:12,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:12,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:45:12,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:12,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 03:45:12,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:12,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:45:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:12,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:13,087 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 349 proven. 249 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2020-10-14 03:45:13,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731285421] [2020-10-14 03:45:13,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:13,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:13,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231363230] [2020-10-14 03:45:13,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:13,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:13,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:13,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:13,089 INFO L87 Difference]: Start difference. First operand 23800 states and 26290 transitions. Second operand 7 states. [2020-10-14 03:45:16,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:16,992 INFO L93 Difference]: Finished difference Result 47603 states and 52603 transitions. [2020-10-14 03:45:16,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:45:16,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 843 [2020-10-14 03:45:16,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:17,042 INFO L225 Difference]: With dead ends: 47603 [2020-10-14 03:45:17,042 INFO L226 Difference]: Without dead ends: 24497 [2020-10-14 03:45:17,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:45:17,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24497 states. [2020-10-14 03:45:17,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24497 to 24146. [2020-10-14 03:45:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24146 states. [2020-10-14 03:45:17,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24146 states to 24146 states and 26641 transitions. [2020-10-14 03:45:17,521 INFO L78 Accepts]: Start accepts. Automaton has 24146 states and 26641 transitions. Word has length 843 [2020-10-14 03:45:17,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:17,522 INFO L479 AbstractCegarLoop]: Abstraction has 24146 states and 26641 transitions. [2020-10-14 03:45:17,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:17,522 INFO L276 IsEmpty]: Start isEmpty. Operand 24146 states and 26641 transitions. [2020-10-14 03:45:17,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 845 [2020-10-14 03:45:17,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:17,555 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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 03:45:17,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:45:17,555 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:17,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:17,556 INFO L82 PathProgramCache]: Analyzing trace with hash -2080067161, now seen corresponding path program 1 times [2020-10-14 03:45:17,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:17,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379809022] [2020-10-14 03:45:17,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:17,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:17,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:18,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:19,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:22,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:22,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 860 [2020-10-14 03:45:22,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:45:22,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 03:45:22,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:22,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:45:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:45:22,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:22,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:22,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:22,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:22,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:22,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:22,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:22,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:22,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:22,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:22,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:22,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:22,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:22,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:45:22,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:22,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:22,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:22,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:22,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:22,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:22,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:22,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:22,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:22,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:45:22,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:22,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:45:22,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:22,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:22,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:22,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:22,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:45:22,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:22,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:45:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:23,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:23,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:23,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:45:23,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:23,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 03:45:23,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:23,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:45:23,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:23,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2020-10-14 03:45:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:23,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:23,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:23,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:45:23,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:23,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:45:23,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:23,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:45:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:23,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 982 backedges. 350 proven. 249 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-10-14 03:45:24,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379809022] [2020-10-14 03:45:24,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:24,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:45:24,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737375943] [2020-10-14 03:45:24,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:45:24,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:24,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:45:24,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:45:24,261 INFO L87 Difference]: Start difference. First operand 24146 states and 26641 transitions. Second operand 8 states. [2020-10-14 03:45:29,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:29,387 INFO L93 Difference]: Finished difference Result 48623 states and 53636 transitions. [2020-10-14 03:45:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:45:29,388 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 844 [2020-10-14 03:45:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:29,451 INFO L225 Difference]: With dead ends: 48623 [2020-10-14 03:45:29,451 INFO L226 Difference]: Without dead ends: 25171 [2020-10-14 03:45:29,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:45:29,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25171 states. [2020-10-14 03:45:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25171 to 24489. [2020-10-14 03:45:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24489 states. [2020-10-14 03:45:29,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24489 states to 24489 states and 26953 transitions. [2020-10-14 03:45:29,895 INFO L78 Accepts]: Start accepts. Automaton has 24489 states and 26953 transitions. Word has length 844 [2020-10-14 03:45:29,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:29,896 INFO L479 AbstractCegarLoop]: Abstraction has 24489 states and 26953 transitions. [2020-10-14 03:45:29,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:45:29,896 INFO L276 IsEmpty]: Start isEmpty. Operand 24489 states and 26953 transitions. [2020-10-14 03:45:29,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 870 [2020-10-14 03:45:29,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:29,924 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:29,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:45:29,925 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:29,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:29,925 INFO L82 PathProgramCache]: Analyzing trace with hash 2049792510, now seen corresponding path program 1 times [2020-10-14 03:45:29,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:29,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493375] [2020-10-14 03:45:29,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:30,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:30,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:30,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:34,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:35,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:35,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 885 [2020-10-14 03:45:35,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:45:35,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 03:45:35,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:35,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:35,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:35,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:45:35,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:45:35,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:35,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:35,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:35,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:35,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:35,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:35,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:35,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:35,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:35,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:35,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:35,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:35,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:35,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:35,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:35,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:35,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:35,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:35,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:45:35,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:35,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:35,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:35,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:35,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:35,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:35,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:35,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:35,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:45:35,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:35,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:45:35,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:35,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:45:35,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:35,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:45:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:35,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:35,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:35,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:45:35,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:35,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 03:45:35,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:35,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:35,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:35,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:35,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:45:35,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:35,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2020-10-14 03:45:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:35,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:35,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:35,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:45:35,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:35,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:45:35,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:35,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:45:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:35,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 375 proven. 249 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2020-10-14 03:45:36,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493375] [2020-10-14 03:45:36,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:36,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:36,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433139108] [2020-10-14 03:45:36,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:36,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:36,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:36,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:36,635 INFO L87 Difference]: Start difference. First operand 24489 states and 26953 transitions. Second operand 7 states. [2020-10-14 03:45:40,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:40,511 INFO L93 Difference]: Finished difference Result 49654 states and 54641 transitions. [2020-10-14 03:45:40,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:45:40,512 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 869 [2020-10-14 03:45:40,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:40,566 INFO L225 Difference]: With dead ends: 49654 [2020-10-14 03:45:40,567 INFO L226 Difference]: Without dead ends: 25859 [2020-10-14 03:45:40,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:45:40,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25859 states. [2020-10-14 03:45:40,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25859 to 25512. [2020-10-14 03:45:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25512 states. [2020-10-14 03:45:41,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25512 states to 25512 states and 27892 transitions. [2020-10-14 03:45:41,063 INFO L78 Accepts]: Start accepts. Automaton has 25512 states and 27892 transitions. Word has length 869 [2020-10-14 03:45:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:41,065 INFO L479 AbstractCegarLoop]: Abstraction has 25512 states and 27892 transitions. [2020-10-14 03:45:41,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:41,065 INFO L276 IsEmpty]: Start isEmpty. Operand 25512 states and 27892 transitions. [2020-10-14 03:45:41,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2020-10-14 03:45:41,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:41,100 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:45:41,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:45:41,100 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:41,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:41,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1365626198, now seen corresponding path program 1 times [2020-10-14 03:45:41,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:41,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227766573] [2020-10-14 03:45:41,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:41,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:41,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:44,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:44,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:46,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:46,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 887 [2020-10-14 03:45:46,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:45:46,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-14 03:45:46,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:46,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 874 [2020-10-14 03:45:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 03:45:46,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:46,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:46,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:46,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:46,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:46,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:46,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:46,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:46,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:46,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:46,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:46,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:46,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:46,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:46,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:46,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:46,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 03:45:46,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:46,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:46,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:46,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:46,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:46,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:45:46,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:46,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 03:45:46,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:46,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:46,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:46,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:46,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:45:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:46,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:46,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:46,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:45:46,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:46,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:45:46,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:46,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:46,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:46,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:46,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:46,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:46,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:45:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:47,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:47,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:47,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:45:47,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:47,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 03:45:47,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:47,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 03:45:47,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:47,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1021 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2020-10-14 03:45:47,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227766573] [2020-10-14 03:45:47,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:47,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:45:47,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767055845] [2020-10-14 03:45:47,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:45:47,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:47,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:45:47,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:45:47,451 INFO L87 Difference]: Start difference. First operand 25512 states and 27892 transitions. Second operand 5 states. [2020-10-14 03:45:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:50,334 INFO L93 Difference]: Finished difference Result 50330 states and 55074 transitions. [2020-10-14 03:45:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:45:50,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 871 [2020-10-14 03:45:50,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:50,382 INFO L225 Difference]: With dead ends: 50330 [2020-10-14 03:45:50,382 INFO L226 Difference]: Without dead ends: 25512 [2020-10-14 03:45:50,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:45:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25512 states. [2020-10-14 03:45:50,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25512 to 25510. [2020-10-14 03:45:50,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25510 states. [2020-10-14 03:45:50,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25510 states to 25510 states and 27597 transitions. [2020-10-14 03:45:50,733 INFO L78 Accepts]: Start accepts. Automaton has 25510 states and 27597 transitions. Word has length 871 [2020-10-14 03:45:50,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:50,734 INFO L479 AbstractCegarLoop]: Abstraction has 25510 states and 27597 transitions. [2020-10-14 03:45:50,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:45:50,734 INFO L276 IsEmpty]: Start isEmpty. Operand 25510 states and 27597 transitions. [2020-10-14 03:45:50,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2020-10-14 03:45:50,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:50,768 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2020-10-14 03:45:50,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:45:50,769 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:50,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:50,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1092688402, now seen corresponding path program 1 times [2020-10-14 03:45:50,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:50,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63117215] [2020-10-14 03:45:50,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:50,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:51,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:51,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:51,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:51,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:51,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:55,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1009 [2020-10-14 03:45:55,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:45:55,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 03:45:55,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:55,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:55,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-14 03:45:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:45:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:56,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:56,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:56,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:56,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:56,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:56,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:56,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:56,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:56,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:56,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:56,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:56,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:56,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:56,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:56,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:56,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:56,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:56,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:45:56,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:56,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:56,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:56,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:56,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:56,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:56,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:56,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:45:56,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 03:45:56,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:56,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:45:56,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:56,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:45:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:56,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:56,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:56,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:56,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:56,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-14 03:45:56,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:56,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:45:56,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:57,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-14 03:45:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:57,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:57,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:57,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:45:57,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:57,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:45:57,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:57,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:57,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:57,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:45:57,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:57,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:57,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 837 [2020-10-14 03:45:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:57,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:57,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:57,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:45:57,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:57,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:45:57,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:57,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:45:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:57,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 489 proven. 257 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2020-10-14 03:45:57,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63117215] [2020-10-14 03:45:57,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:57,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:57,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782208623] [2020-10-14 03:45:57,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:57,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:57,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:57,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:57,872 INFO L87 Difference]: Start difference. First operand 25510 states and 27597 transitions. Second operand 7 states. [2020-10-14 03:46:01,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:01,691 INFO L93 Difference]: Finished difference Result 50338 states and 54508 transitions. [2020-10-14 03:46:01,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:46:01,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 991 [2020-10-14 03:46:01,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:01,762 INFO L225 Difference]: With dead ends: 50338 [2020-10-14 03:46:01,766 INFO L226 Difference]: Without dead ends: 25522 [2020-10-14 03:46:01,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:46:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25522 states. [2020-10-14 03:46:02,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25522 to 25510. [2020-10-14 03:46:02,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25510 states. [2020-10-14 03:46:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25510 states to 25510 states and 27567 transitions. [2020-10-14 03:46:02,111 INFO L78 Accepts]: Start accepts. Automaton has 25510 states and 27567 transitions. Word has length 991 [2020-10-14 03:46:02,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:02,112 INFO L479 AbstractCegarLoop]: Abstraction has 25510 states and 27567 transitions. [2020-10-14 03:46:02,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:02,112 INFO L276 IsEmpty]: Start isEmpty. Operand 25510 states and 27567 transitions. [2020-10-14 03:46:02,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1157 [2020-10-14 03:46:02,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:02,140 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:02,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:46:02,140 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:02,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1962142043, now seen corresponding path program 1 times [2020-10-14 03:46:02,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:02,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040321338] [2020-10-14 03:46:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:02,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:02,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:02,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:03,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:07,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:07,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1176 [2020-10-14 03:46:07,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:07,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 03:46:07,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:07,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 622 [2020-10-14 03:46:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:46:07,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:07,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:07,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:07,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:07,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:07,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:07,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:07,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:07,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:07,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:07,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:07,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:07,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:07,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:46:07,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:07,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:46:07,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:07,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:07,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:07,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:46:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:07,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:07,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:07,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:46:07,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:07,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:46:07,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:07,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:07,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:07,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:46:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:07,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:07,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:07,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:46:07,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:07,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:46:07,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:07,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:46:07,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:07,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:46:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:07,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:07,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:07,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:46:07,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:07,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-14 03:46:07,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:07,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:07,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:07,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:07,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:46:07,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:08,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 866 [2020-10-14 03:46:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:08,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:08,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:08,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:08,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:08,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:46:08,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:08,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:08,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:08,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:46:08,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:08,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:08,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 976 [2020-10-14 03:46:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:08,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:08,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:08,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:46:08,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:46:08,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:08,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:46:08,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:08,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:09,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2164 backedges. 643 proven. 281 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2020-10-14 03:46:09,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040321338] [2020-10-14 03:46:09,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:09,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:46:09,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017615394] [2020-10-14 03:46:09,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:46:09,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:09,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:46:09,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:46:09,560 INFO L87 Difference]: Start difference. First operand 25510 states and 27567 transitions. Second operand 8 states. [2020-10-14 03:46:14,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:14,482 INFO L93 Difference]: Finished difference Result 52376 states and 56746 transitions. [2020-10-14 03:46:14,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 03:46:14,483 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1156 [2020-10-14 03:46:14,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:14,534 INFO L225 Difference]: With dead ends: 52376 [2020-10-14 03:46:14,534 INFO L226 Difference]: Without dead ends: 27560 [2020-10-14 03:46:14,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:46:14,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27560 states. [2020-10-14 03:46:14,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27560 to 25853. [2020-10-14 03:46:14,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25853 states. [2020-10-14 03:46:14,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25853 states to 25853 states and 27952 transitions. [2020-10-14 03:46:14,881 INFO L78 Accepts]: Start accepts. Automaton has 25853 states and 27952 transitions. Word has length 1156 [2020-10-14 03:46:14,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:14,882 INFO L479 AbstractCegarLoop]: Abstraction has 25853 states and 27952 transitions. [2020-10-14 03:46:14,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:46:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 25853 states and 27952 transitions. [2020-10-14 03:46:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1234 [2020-10-14 03:46:14,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:14,912 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:14,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:46:14,912 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:14,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:14,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1170159778, now seen corresponding path program 1 times [2020-10-14 03:46:14,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:14,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954648522] [2020-10-14 03:46:14,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:15,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:16,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:16,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:20,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:20,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1255 [2020-10-14 03:46:20,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:46:20,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 03:46:20,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:20,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1065 [2020-10-14 03:46:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 03:46:20,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:20,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:20,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:20,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:20,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:20,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:20,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:46:20,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:20,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:20,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:20,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:20,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:20,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:20,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:20,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:20,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:20,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:46:20,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:46:20,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:20,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:20,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:20,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:46:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:20,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:20,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:20,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:46:20,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:20,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:46:20,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:20,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:20,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:20,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:20,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:20,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:20,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:46:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:20,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:20,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:20,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:46:20,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:20,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:46:20,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:20,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:20,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:20,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:20,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:20,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:46:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:20,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:20,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:20,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:46:20,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:20,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:46:20,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:20,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:20,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:20,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:20,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:20,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:20,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:46:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:20,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:20,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:20,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:46:20,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:20,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:46:20,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:20,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:20,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:20,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2020-10-14 03:46:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:20,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:20,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:20,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:46:20,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:20,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:46:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:20,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1053 [2020-10-14 03:46:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:20,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:20,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:20,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:46:20,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:21,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 03:46:21,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:21,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 03:46:21,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:21,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2190 backedges. 759 proven. 2 refuted. 0 times theorem prover too weak. 1429 trivial. 0 not checked. [2020-10-14 03:46:21,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954648522] [2020-10-14 03:46:21,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:21,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:21,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086334675] [2020-10-14 03:46:21,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:21,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:21,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:21,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:21,813 INFO L87 Difference]: Start difference. First operand 25853 states and 27952 transitions. Second operand 7 states. [2020-10-14 03:46:25,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:25,738 INFO L93 Difference]: Finished difference Result 54171 states and 58758 transitions. [2020-10-14 03:46:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:46:25,739 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1233 [2020-10-14 03:46:25,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:25,804 INFO L225 Difference]: With dead ends: 54171 [2020-10-14 03:46:25,804 INFO L226 Difference]: Without dead ends: 25911 [2020-10-14 03:46:25,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 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 03:46:25,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25911 states. [2020-10-14 03:46:26,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25911 to 25476. [2020-10-14 03:46:26,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25476 states. [2020-10-14 03:46:26,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25476 states to 25476 states and 27250 transitions. [2020-10-14 03:46:26,156 INFO L78 Accepts]: Start accepts. Automaton has 25476 states and 27250 transitions. Word has length 1233 [2020-10-14 03:46:26,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:26,157 INFO L479 AbstractCegarLoop]: Abstraction has 25476 states and 27250 transitions. [2020-10-14 03:46:26,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:26,157 INFO L276 IsEmpty]: Start isEmpty. Operand 25476 states and 27250 transitions. [2020-10-14 03:46:26,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2020-10-14 03:46:26,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:26,191 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-14 03:46:26,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:46:26,192 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:26,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:26,192 INFO L82 PathProgramCache]: Analyzing trace with hash -680062310, now seen corresponding path program 1 times [2020-10-14 03:46:26,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:26,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430144534] [2020-10-14 03:46:26,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:26,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:26,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:31,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:31,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1305 [2020-10-14 03:46:31,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:46:31,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5683 [2020-10-14 03:46:31,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:31,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:46:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:46:31,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:32,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:32,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:32,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:32,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:32,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:32,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:32,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:32,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:32,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:32,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:32,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:32,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:32,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:32,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:32,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:32,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:46:32,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:32,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:46:32,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:32,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:32,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:32,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:32,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:32,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:32,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:46:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:32,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:32,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:32,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:46:32,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:32,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:46:32,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:32,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:32,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:32,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:46:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:32,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:32,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:32,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:46:32,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:32,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:46:32,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:32,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:32,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:32,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:46:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:32,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:32,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:32,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:46:32,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:32,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:46:32,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:32,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:32,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:46:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:32,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:32,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:32,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:32,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:32,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:46:32,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:32,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:32,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:32,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:46:32,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:32,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:46:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:32,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:33,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:33,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:46:33,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:33,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-14 03:46:33,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:33,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:46:33,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:33,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:46:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:33,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:33,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:33,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:46:33,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:33,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:46:33,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:33,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:33,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:46:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:33,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0