/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_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:39:24,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:39:24,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:39:25,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:39:25,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:39:25,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:39:25,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:39:25,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:39:25,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:39:25,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:39:25,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:39:25,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:39:25,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:39:25,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:39:25,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:39:25,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:39:25,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:39:25,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:39:25,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:39:25,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:39:25,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:39:25,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:39:25,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:39:25,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:39:25,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:39:25,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:39:25,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:39:25,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:39:25,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:39:25,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:39:25,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:39:25,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:39:25,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:39:25,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:39:25,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:39:25,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:39:25,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:39:25,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:39:25,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:39:25,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:39:25,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:39:25,094 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 03:39:25,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:39:25,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:39:25,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:39:25,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:39:25,133 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:39:25,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:39:25,134 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:39:25,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:39:25,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:39:25,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:39:25,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:39:25,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:39:25,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:39:25,136 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:39:25,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:39:25,136 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:39:25,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:39:25,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:39:25,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:39:25,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:39:25,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:39:25,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:39:25,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:39:25,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:39:25,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:39:25,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:39:25,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:39:25,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:39:25,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:39:25,139 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 03:39:25,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:39:25,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:39:25,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:39:25,475 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:39:25,476 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:39:25,476 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label03.c [2020-10-14 03:39:25,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2704a3cfc/598135908f8342ae805142de8df041cb/FLAG7f20259c5 [2020-10-14 03:39:26,235 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:39:26,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label03.c [2020-10-14 03:39:26,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2704a3cfc/598135908f8342ae805142de8df041cb/FLAG7f20259c5 [2020-10-14 03:39:26,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2704a3cfc/598135908f8342ae805142de8df041cb [2020-10-14 03:39:26,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:39:26,411 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:39:26,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:39:26,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:39:26,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:39:26,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:39:26" (1/1) ... [2020-10-14 03:39:26,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f97e2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:26, skipping insertion in model container [2020-10-14 03:39:26,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:39:26" (1/1) ... [2020-10-14 03:39:26,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:39:26,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:39:27,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:39:27,438 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:39:27,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:39:27,735 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:39:27,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:27 WrapperNode [2020-10-14 03:39:27,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:39:27,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:39:27,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:39:27,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:39:27,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:27" (1/1) ... [2020-10-14 03:39:27,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:27" (1/1) ... [2020-10-14 03:39:27,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:27" (1/1) ... [2020-10-14 03:39:27,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:27" (1/1) ... [2020-10-14 03:39:27,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:27" (1/1) ... [2020-10-14 03:39:27,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:27" (1/1) ... [2020-10-14 03:39:27,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:27" (1/1) ... [2020-10-14 03:39:27,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:39:27,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:39:27,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:39:27,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:39:27,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:27" (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 03:39:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:39:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:39:28,077 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:39:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:39:28,078 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:39:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:39:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:39:28,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:39:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:39:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:39:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:39:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:39:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:39:30,516 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:39:30,517 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:39:30,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:39:30 BoogieIcfgContainer [2020-10-14 03:39:30,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:39:30,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:39:30,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:39:30,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:39:30,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:39:26" (1/3) ... [2020-10-14 03:39:30,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3241b0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:39:30, skipping insertion in model container [2020-10-14 03:39:30,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:27" (2/3) ... [2020-10-14 03:39:30,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3241b0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:39:30, skipping insertion in model container [2020-10-14 03:39:30,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:39:30" (3/3) ... [2020-10-14 03:39:30,551 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label03.c [2020-10-14 03:39:30,563 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:39:30,578 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:39:30,596 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:39:30,628 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:39:30,629 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:39:30,629 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:39:30,629 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:39:30,629 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:39:30,629 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:39:30,629 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:39:30,630 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:39:30,671 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:39:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-14 03:39:30,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:30,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:39:30,682 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:30,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:30,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1120650517, now seen corresponding path program 1 times [2020-10-14 03:39:30,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:30,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389968754] [2020-10-14 03:39:30,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:30,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:31,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:31,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 03:39:31,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:31,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-14 03:39:31,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:31,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:31,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:39:31,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:39:31,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 03:39:31,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:39:31,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:31,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:31,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:31,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:31,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:31,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:39:31,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:31,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:31,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:31,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:39:31,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:31,207 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 03:39:31,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389968754] [2020-10-14 03:39:31,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:39:31,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:39:31,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645972608] [2020-10-14 03:39:31,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:39:31,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:31,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:39:31,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:39:31,236 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:39:34,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:34,724 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 03:39:34,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:39:34,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-14 03:39:34,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:34,751 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:39:34,751 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:39:34,768 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 03:39:34,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:39:34,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 03:39:34,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 03:39:34,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 03:39:34,884 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 12 [2020-10-14 03:39:34,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:34,884 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 03:39:34,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:39:34,885 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 03:39:34,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 03:39:34,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:34,890 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 03:39:34,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:39:34,890 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:34,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:34,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1461469944, now seen corresponding path program 1 times [2020-10-14 03:39:34,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:34,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939880652] [2020-10-14 03:39:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:34,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:35,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:35,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:35,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 03:39:35,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:39:35,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 717 [2020-10-14 03:39:35,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:35,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:35,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:35,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:39:35,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 03:39:35,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:39:35,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:35,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:35,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:35,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:35,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:35,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:39:35,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:35,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:35,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:35,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:35,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:35,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:35,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:35,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:35,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:35,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:39:35,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:35,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:39:35,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:35,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:35,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:35,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:35,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:39:35,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:39:35,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939880652] [2020-10-14 03:39:35,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:35,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:39:35,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861272924] [2020-10-14 03:39:35,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:39:35,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:35,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:39:35,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:39:35,915 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 5 states. [2020-10-14 03:39:39,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:39,388 INFO L93 Difference]: Finished difference Result 2063 states and 3056 transitions. [2020-10-14 03:39:39,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:39:39,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2020-10-14 03:39:39,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:39,401 INFO L225 Difference]: With dead ends: 2063 [2020-10-14 03:39:39,401 INFO L226 Difference]: Without dead ends: 1377 [2020-10-14 03:39:39,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 03:39:39,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-10-14 03:39:39,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1373. [2020-10-14 03:39:39,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1373 states. [2020-10-14 03:39:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1805 transitions. [2020-10-14 03:39:39,492 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1805 transitions. Word has length 88 [2020-10-14 03:39:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:39,493 INFO L479 AbstractCegarLoop]: Abstraction has 1373 states and 1805 transitions. [2020-10-14 03:39:39,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:39:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1805 transitions. [2020-10-14 03:39:39,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-14 03:39:39,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:39,512 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 03:39:39,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:39:39,513 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:39,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:39,514 INFO L82 PathProgramCache]: Analyzing trace with hash 323379736, now seen corresponding path program 1 times [2020-10-14 03:39:39,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:39,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003061553] [2020-10-14 03:39:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:39,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:39,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:40,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:40,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:40,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:42,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:42,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 03:39:42,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:39:42,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2524 [2020-10-14 03:39:42,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:42,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:39:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:39:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:42,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:42,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:42,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:42,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:42,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:42,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:39:42,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:42,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:42,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:42,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:42,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:42,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:42,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:42,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:39:42,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:42,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:39:42,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:42,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:39:42,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:42,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:39:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:42,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:42,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:42,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:39:42,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:42,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 03:39:42,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:42,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:42,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:42,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:39:42,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:39:42,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:39:42,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003061553] [2020-10-14 03:39:42,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:42,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:39:42,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303750374] [2020-10-14 03:39:42,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:39:42,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:42,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:39:42,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:39:42,692 INFO L87 Difference]: Start difference. First operand 1373 states and 1805 transitions. Second operand 7 states. [2020-10-14 03:39:47,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:47,141 INFO L93 Difference]: Finished difference Result 3472 states and 4739 transitions. [2020-10-14 03:39:47,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:39:47,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-10-14 03:39:47,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:47,155 INFO L225 Difference]: With dead ends: 3472 [2020-10-14 03:39:47,155 INFO L226 Difference]: Without dead ends: 2105 [2020-10-14 03:39:47,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 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 03:39:47,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2020-10-14 03:39:47,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2083. [2020-10-14 03:39:47,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-10-14 03:39:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2625 transitions. [2020-10-14 03:39:47,227 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2625 transitions. Word has length 175 [2020-10-14 03:39:47,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:47,228 INFO L479 AbstractCegarLoop]: Abstraction has 2083 states and 2625 transitions. [2020-10-14 03:39:47,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:39:47,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2625 transitions. [2020-10-14 03:39:47,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-14 03:39:47,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:47,232 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:39:47,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:39:47,233 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:47,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:47,233 INFO L82 PathProgramCache]: Analyzing trace with hash -13915995, now seen corresponding path program 1 times [2020-10-14 03:39:47,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:47,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866619941] [2020-10-14 03:39:47,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:47,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:47,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:47,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:48,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:48,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:49,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:49,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-14 03:39:49,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:39:49,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2103 [2020-10-14 03:39:49,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:49,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:39:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:39:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:49,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:49,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:49,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:49,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:49,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:49,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:39:49,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:49,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:49,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:49,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:49,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:49,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:49,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:39:49,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:49,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 03:39:49,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:49,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:39:49,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:39:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:49,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:49,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:49,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:39:49,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:49,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:39:49,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:49,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:49,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:39:49,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 03:39:49,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:49,752 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:39:49,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866619941] [2020-10-14 03:39:49,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:49,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:39:49,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438707974] [2020-10-14 03:39:49,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:39:49,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:49,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:39:49,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:39:49,755 INFO L87 Difference]: Start difference. First operand 2083 states and 2625 transitions. Second operand 7 states. [2020-10-14 03:39:53,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:53,689 INFO L93 Difference]: Finished difference Result 5574 states and 7221 transitions. [2020-10-14 03:39:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:39:53,691 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-10-14 03:39:53,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:53,711 INFO L225 Difference]: With dead ends: 5574 [2020-10-14 03:39:53,711 INFO L226 Difference]: Without dead ends: 3146 [2020-10-14 03:39:53,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 03:39:53,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2020-10-14 03:39:53,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3124. [2020-10-14 03:39:53,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3124 states. [2020-10-14 03:39:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 3414 transitions. [2020-10-14 03:39:53,802 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 3414 transitions. Word has length 186 [2020-10-14 03:39:53,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:53,803 INFO L479 AbstractCegarLoop]: Abstraction has 3124 states and 3414 transitions. [2020-10-14 03:39:53,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:39:53,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 3414 transitions. [2020-10-14 03:39:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-14 03:39:53,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:53,807 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:39:53,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:39:53,808 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:53,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:53,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1988206642, now seen corresponding path program 1 times [2020-10-14 03:39:53,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:53,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887018547] [2020-10-14 03:39:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:53,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:53,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:54,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:57,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:57,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:39:57,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:39:57,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4089 [2020-10-14 03:39:57,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:57,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:39:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:39:57,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:39:58,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:58,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:58,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:58,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:58,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:58,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:39:58,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:58,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:58,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:58,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:58,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:58,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:58,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:39:58,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:58,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:39:58,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:58,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:58,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:58,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:58,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:39:58,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:58,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:39:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:58,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:58,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:58,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:39:58,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:58,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 03:39:58,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:58,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:39:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:39:58,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:58,513 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:39:58,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887018547] [2020-10-14 03:39:58,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:58,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:39:58,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549942840] [2020-10-14 03:39:58,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:39:58,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:58,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:39:58,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:39:58,516 INFO L87 Difference]: Start difference. First operand 3124 states and 3414 transitions. Second operand 7 states. [2020-10-14 03:40:01,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:01,445 INFO L93 Difference]: Finished difference Result 7992 states and 8857 transitions. [2020-10-14 03:40:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:40:01,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 241 [2020-10-14 03:40:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:01,475 INFO L225 Difference]: With dead ends: 7992 [2020-10-14 03:40:01,475 INFO L226 Difference]: Without dead ends: 4874 [2020-10-14 03:40:01,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 03:40:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2020-10-14 03:40:01,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4511. [2020-10-14 03:40:01,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4511 states. [2020-10-14 03:40:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4511 states to 4511 states and 5007 transitions. [2020-10-14 03:40:01,617 INFO L78 Accepts]: Start accepts. Automaton has 4511 states and 5007 transitions. Word has length 241 [2020-10-14 03:40:01,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:01,617 INFO L479 AbstractCegarLoop]: Abstraction has 4511 states and 5007 transitions. [2020-10-14 03:40:01,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:01,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4511 states and 5007 transitions. [2020-10-14 03:40:01,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-14 03:40:01,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:01,622 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:40:01,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:40:01,623 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:01,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:01,624 INFO L82 PathProgramCache]: Analyzing trace with hash -731435455, now seen corresponding path program 1 times [2020-10-14 03:40:01,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:01,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276635755] [2020-10-14 03:40:01,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:01,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:01,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:02,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:04,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:04,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-14 03:40:04,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:40:04,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3025 [2020-10-14 03:40:04,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:04,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:40:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 03:40:04,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:04,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:04,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:04,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:04,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:04,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:04,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:40:04,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:04,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:04,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:04,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:04,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 03:40:04,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:04,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:05,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:05,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:05,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:05,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-14 03:40:05,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:05,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:40:05,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:05,471 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:40:05,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276635755] [2020-10-14 03:40:05,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:05,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:40:05,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970658030] [2020-10-14 03:40:05,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:40:05,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:05,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:40:05,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:40:05,475 INFO L87 Difference]: Start difference. First operand 4511 states and 5007 transitions. Second operand 6 states. [2020-10-14 03:40:08,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:08,820 INFO L93 Difference]: Finished difference Result 10039 states and 11150 transitions. [2020-10-14 03:40:08,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:40:08,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 261 [2020-10-14 03:40:08,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:08,847 INFO L225 Difference]: With dead ends: 10039 [2020-10-14 03:40:08,847 INFO L226 Difference]: Without dead ends: 5534 [2020-10-14 03:40:08,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:40:08,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2020-10-14 03:40:08,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 5521. [2020-10-14 03:40:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5521 states. [2020-10-14 03:40:08,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5521 states to 5521 states and 6023 transitions. [2020-10-14 03:40:08,997 INFO L78 Accepts]: Start accepts. Automaton has 5521 states and 6023 transitions. Word has length 261 [2020-10-14 03:40:08,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:08,999 INFO L479 AbstractCegarLoop]: Abstraction has 5521 states and 6023 transitions. [2020-10-14 03:40:09,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:40:09,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5521 states and 6023 transitions. [2020-10-14 03:40:09,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2020-10-14 03:40:09,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:09,015 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:40:09,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:40:09,016 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:09,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:09,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1061107579, now seen corresponding path program 1 times [2020-10-14 03:40:09,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:09,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73986545] [2020-10-14 03:40:09,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:09,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:09,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:09,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:10,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:14,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:14,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 459 [2020-10-14 03:40:14,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:40:14,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 03:40:14,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:14,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:40:14,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:40:14,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:14,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:14,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:14,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:14,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:14,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:14,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:40:14,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:14,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:14,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:14,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:14,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:14,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:40:14,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:14,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:14,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:14,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:14,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:14,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 03:40:14,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:14,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:14,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:14,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:14,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:14,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:14,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:14,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:14,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:14,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:40:14,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:14,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:40:14,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:14,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:14,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:40:14,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:14,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:40:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:14,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:15,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:15,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:40:15,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:15,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-10-14 03:40:15,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:15,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:15,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:40:15,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 03:40:15,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73986545] [2020-10-14 03:40:15,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:15,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:40:15,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114322884] [2020-10-14 03:40:15,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:40:15,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:15,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:40:15,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:40:15,632 INFO L87 Difference]: Start difference. First operand 5521 states and 6023 transitions. Second operand 8 states. [2020-10-14 03:40:18,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:18,507 INFO L93 Difference]: Finished difference Result 13092 states and 14400 transitions. [2020-10-14 03:40:18,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:40:18,507 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 445 [2020-10-14 03:40:18,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:18,539 INFO L225 Difference]: With dead ends: 13092 [2020-10-14 03:40:18,539 INFO L226 Difference]: Without dead ends: 7577 [2020-10-14 03:40:18,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:40:18,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7577 states. [2020-10-14 03:40:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7577 to 6895. [2020-10-14 03:40:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6895 states. [2020-10-14 03:40:18,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6895 states to 6895 states and 7626 transitions. [2020-10-14 03:40:18,696 INFO L78 Accepts]: Start accepts. Automaton has 6895 states and 7626 transitions. Word has length 445 [2020-10-14 03:40:18,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:18,697 INFO L479 AbstractCegarLoop]: Abstraction has 6895 states and 7626 transitions. [2020-10-14 03:40:18,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:40:18,697 INFO L276 IsEmpty]: Start isEmpty. Operand 6895 states and 7626 transitions. [2020-10-14 03:40:18,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2020-10-14 03:40:18,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:18,709 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:40:18,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:40:18,710 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:18,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:18,711 INFO L82 PathProgramCache]: Analyzing trace with hash 431442818, now seen corresponding path program 1 times [2020-10-14 03:40:18,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:18,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184260741] [2020-10-14 03:40:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:18,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:19,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:19,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:19,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:22,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:23,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:23,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 460 [2020-10-14 03:40:23,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:40:23,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-14 03:40:23,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:23,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:40:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:40:23,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:24,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:24,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:24,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:24,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:24,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:24,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:40:24,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:24,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:24,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:24,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:24,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:24,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:24,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:24,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:24,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:24,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:24,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:24,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 03:40:24,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:24,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:24,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:24,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:24,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:24,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:24,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:24,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:40:24,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:24,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:40:24,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:24,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:24,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:24,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:24,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:40:24,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:24,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:40:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:24,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:24,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:24,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:40:24,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:24,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-14 03:40:24,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:24,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:24,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:40:24,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:24,871 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 03:40:24,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184260741] [2020-10-14 03:40:24,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:24,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:24,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105158376] [2020-10-14 03:40:24,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:24,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:24,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:24,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:24,874 INFO L87 Difference]: Start difference. First operand 6895 states and 7626 transitions. Second operand 7 states. [2020-10-14 03:40:28,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:28,450 INFO L93 Difference]: Finished difference Result 18368 states and 20987 transitions. [2020-10-14 03:40:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:40:28,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 446 [2020-10-14 03:40:28,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:28,498 INFO L225 Difference]: With dead ends: 18368 [2020-10-14 03:40:28,499 INFO L226 Difference]: Without dead ends: 11132 [2020-10-14 03:40:28,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:40:28,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11132 states. [2020-10-14 03:40:28,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11132 to 10988. [2020-10-14 03:40:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10988 states. [2020-10-14 03:40:28,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10988 states to 10988 states and 12035 transitions. [2020-10-14 03:40:28,753 INFO L78 Accepts]: Start accepts. Automaton has 10988 states and 12035 transitions. Word has length 446 [2020-10-14 03:40:28,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:28,754 INFO L479 AbstractCegarLoop]: Abstraction has 10988 states and 12035 transitions. [2020-10-14 03:40:28,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:28,754 INFO L276 IsEmpty]: Start isEmpty. Operand 10988 states and 12035 transitions. [2020-10-14 03:40:28,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2020-10-14 03:40:28,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:28,769 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:40:28,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:40:28,770 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:28,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:28,770 INFO L82 PathProgramCache]: Analyzing trace with hash -359667224, now seen corresponding path program 1 times [2020-10-14 03:40:28,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:28,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035046296] [2020-10-14 03:40:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:28,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:29,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:29,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:31,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:33,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:33,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 488 [2020-10-14 03:40:33,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:40:33,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 03:40:33,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:33,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:33,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:33,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:40:33,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:40:33,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:33,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:33,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:33,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:33,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:33,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:33,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:40:33,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:33,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:33,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:33,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:33,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:33,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:34,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:34,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:34,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:34,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:34,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:34,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:40:34,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:34,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:34,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:34,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:34,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:34,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:34,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:34,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:34,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:40:34,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:34,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:40:34,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:34,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:40:34,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:34,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:40:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:34,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:34,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:34,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:40:34,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:34,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:40:34,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:34,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:34,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:40:34,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:34,578 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 227 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 03:40:34,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035046296] [2020-10-14 03:40:34,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:34,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:34,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80671134] [2020-10-14 03:40:34,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:34,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:34,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:34,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:34,582 INFO L87 Difference]: Start difference. First operand 10988 states and 12035 transitions. Second operand 7 states. [2020-10-14 03:40:38,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:38,493 INFO L93 Difference]: Finished difference Result 26241 states and 29906 transitions. [2020-10-14 03:40:38,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:40:38,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 474 [2020-10-14 03:40:38,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:38,566 INFO L225 Difference]: With dead ends: 26241 [2020-10-14 03:40:38,566 INFO L226 Difference]: Without dead ends: 15259 [2020-10-14 03:40:38,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 03:40:38,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15259 states. [2020-10-14 03:40:38,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15259 to 14401. [2020-10-14 03:40:38,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14401 states. [2020-10-14 03:40:39,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 15820 transitions. [2020-10-14 03:40:39,033 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 15820 transitions. Word has length 474 [2020-10-14 03:40:39,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:39,034 INFO L479 AbstractCegarLoop]: Abstraction has 14401 states and 15820 transitions. [2020-10-14 03:40:39,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:39,034 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 15820 transitions. [2020-10-14 03:40:39,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2020-10-14 03:40:39,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:39,046 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:40:39,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:40:39,047 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:39,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:39,048 INFO L82 PathProgramCache]: Analyzing trace with hash -459713260, now seen corresponding path program 1 times [2020-10-14 03:40:39,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:39,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817319083] [2020-10-14 03:40:39,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:39,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:39,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:39,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:40,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:42,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:44,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:44,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 514 [2020-10-14 03:40:44,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:40:44,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 03:40:44,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:44,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:40:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:40:44,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:44,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:44,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:44,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:44,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:44,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:44,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:40:44,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:44,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:44,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:44,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:44,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:44,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:44,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:44,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:44,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 03:40:44,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:44,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:44,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:44,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:44,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:44,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:44,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:44,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:40:44,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:44,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:40:44,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:44,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:44,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:44,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:44,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:40:44,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:44,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:40:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:44,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:44,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:44,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:40:44,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:44,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:40:44,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:44,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:44,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:44,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:44,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:40:44,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 253 proven. 2 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 03:40:44,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817319083] [2020-10-14 03:40:44,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:44,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:44,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172859114] [2020-10-14 03:40:44,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:44,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:44,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:44,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:44,914 INFO L87 Difference]: Start difference. First operand 14401 states and 15820 transitions. Second operand 7 states. [2020-10-14 03:40:50,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:50,386 INFO L93 Difference]: Finished difference Result 33208 states and 36832 transitions. [2020-10-14 03:40:50,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:40:50,387 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 500 [2020-10-14 03:40:50,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:50,453 INFO L225 Difference]: With dead ends: 33208 [2020-10-14 03:40:50,453 INFO L226 Difference]: Without dead ends: 18813 [2020-10-14 03:40:50,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 03:40:50,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18813 states. [2020-10-14 03:40:50,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18813 to 18472. [2020-10-14 03:40:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18472 states. [2020-10-14 03:40:50,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18472 states to 18472 states and 20498 transitions. [2020-10-14 03:40:50,839 INFO L78 Accepts]: Start accepts. Automaton has 18472 states and 20498 transitions. Word has length 500 [2020-10-14 03:40:50,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:50,840 INFO L479 AbstractCegarLoop]: Abstraction has 18472 states and 20498 transitions. [2020-10-14 03:40:50,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 18472 states and 20498 transitions. [2020-10-14 03:40:50,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2020-10-14 03:40:50,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:50,853 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-14 03:40:50,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:40:50,854 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:50,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:50,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1385421312, now seen corresponding path program 1 times [2020-10-14 03:40:50,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:50,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426004625] [2020-10-14 03:40:50,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:50,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:51,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:51,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:53,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:55,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:55,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 572 [2020-10-14 03:40:55,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:40:55,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 03:40:55,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:55,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:40:55,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 03:40:55,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:56,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:56,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:56,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:56,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:56,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:56,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:40:56,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:56,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:56,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:56,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:56,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:56,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:56,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:56,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:56,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 03:40:56,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:56,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:56,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:56,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:56,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:40:56,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:56,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:56,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:56,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:56,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:40:56,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 03:40:56,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:56,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 03:40:56,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:56,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 03:40:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:56,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:56,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:56,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:40:56,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:56,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:40:56,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:56,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:56,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:56,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:40:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:56,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:56,902 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 169 proven. 143 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 03:40:56,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426004625] [2020-10-14 03:40:56,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:56,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:56,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981471212] [2020-10-14 03:40:56,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:56,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:56,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:56,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:56,905 INFO L87 Difference]: Start difference. First operand 18472 states and 20498 transitions. Second operand 7 states. [2020-10-14 03:41:01,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:01,355 INFO L93 Difference]: Finished difference Result 41928 states and 47665 transitions. [2020-10-14 03:41:01,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:41:01,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 558 [2020-10-14 03:41:01,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:01,431 INFO L225 Difference]: With dead ends: 41928 [2020-10-14 03:41:01,431 INFO L226 Difference]: Without dead ends: 23453 [2020-10-14 03:41:01,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 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 03:41:01,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23453 states. [2020-10-14 03:41:01,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23453 to 23449. [2020-10-14 03:41:01,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23449 states. [2020-10-14 03:41:01,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23449 states to 23449 states and 26701 transitions. [2020-10-14 03:41:01,923 INFO L78 Accepts]: Start accepts. Automaton has 23449 states and 26701 transitions. Word has length 558 [2020-10-14 03:41:01,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:01,924 INFO L479 AbstractCegarLoop]: Abstraction has 23449 states and 26701 transitions. [2020-10-14 03:41:01,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:01,924 INFO L276 IsEmpty]: Start isEmpty. Operand 23449 states and 26701 transitions. [2020-10-14 03:41:01,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2020-10-14 03:41:01,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:01,941 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:41:01,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:41:01,941 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:01,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:01,942 INFO L82 PathProgramCache]: Analyzing trace with hash -79003172, now seen corresponding path program 1 times [2020-10-14 03:41:01,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:01,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384688049] [2020-10-14 03:41:01,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:02,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:02,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:03,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:04,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:05,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:07,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:07,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 606 [2020-10-14 03:41:07,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:41:07,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 03:41:07,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:07,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:41:07,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:41:07,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:07,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:07,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:07,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:07,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:07,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:41:07,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:07,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:07,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:07,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:07,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:07,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:07,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:07,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:07,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:41:07,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:07,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:07,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:07,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:07,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:07,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:07,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:41:07,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:07,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:41:07,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:07,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:07,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:07,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:41:07,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:07,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:41:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:07,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:07,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:07,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:41:07,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:07,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-14 03:41:07,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:07,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:41:07,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 03:41:08,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384688049] [2020-10-14 03:41:08,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:08,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:41:08,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361237481] [2020-10-14 03:41:08,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:41:08,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:08,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:41:08,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:41:08,322 INFO L87 Difference]: Start difference. First operand 23449 states and 26701 transitions. Second operand 8 states. [2020-10-14 03:41:12,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:12,835 INFO L93 Difference]: Finished difference Result 47920 states and 54517 transitions. [2020-10-14 03:41:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:41:12,836 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 592 [2020-10-14 03:41:12,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:12,901 INFO L225 Difference]: With dead ends: 47920 [2020-10-14 03:41:12,902 INFO L226 Difference]: Without dead ends: 24814 [2020-10-14 03:41:12,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:41:12,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24814 states. [2020-10-14 03:41:13,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24814 to 24136. [2020-10-14 03:41:13,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24136 states. [2020-10-14 03:41:13,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24136 states to 24136 states and 27442 transitions. [2020-10-14 03:41:13,426 INFO L78 Accepts]: Start accepts. Automaton has 24136 states and 27442 transitions. Word has length 592 [2020-10-14 03:41:13,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:13,430 INFO L479 AbstractCegarLoop]: Abstraction has 24136 states and 27442 transitions. [2020-10-14 03:41:13,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:41:13,430 INFO L276 IsEmpty]: Start isEmpty. Operand 24136 states and 27442 transitions. [2020-10-14 03:41:13,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2020-10-14 03:41:13,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:13,455 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:41:13,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:41:13,456 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:13,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:13,456 INFO L82 PathProgramCache]: Analyzing trace with hash -467637313, now seen corresponding path program 1 times [2020-10-14 03:41:13,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:13,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563009940] [2020-10-14 03:41:13,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:13,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:13,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:13,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:14,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:14,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:18,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:18,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 607 [2020-10-14 03:41:18,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:41:18,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 03:41:18,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:18,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:41:18,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:41:18,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:18,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:18,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:18,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:18,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:18,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:18,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:41:18,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:18,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:18,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:18,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:18,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:18,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:18,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:18,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:18,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:18,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:18,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:18,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:41:18,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:18,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:18,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:18,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:18,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:18,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:18,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:18,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:41:18,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:18,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:41:18,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:18,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:18,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:18,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:41:18,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:18,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:41:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:18,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:19,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:19,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:41:19,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:19,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-14 03:41:19,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:19,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:19,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:19,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:19,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:41:19,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:19,634 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 333 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 03:41:19,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563009940] [2020-10-14 03:41:19,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:19,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:19,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249359192] [2020-10-14 03:41:19,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:19,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:19,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:19,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:19,637 INFO L87 Difference]: Start difference. First operand 24136 states and 27442 transitions. Second operand 7 states. [2020-10-14 03:41:23,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:23,621 INFO L93 Difference]: Finished difference Result 48276 states and 54917 transitions. [2020-10-14 03:41:23,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:41:23,625 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 593 [2020-10-14 03:41:23,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:23,691 INFO L225 Difference]: With dead ends: 48276 [2020-10-14 03:41:23,691 INFO L226 Difference]: Without dead ends: 24483 [2020-10-14 03:41:23,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 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 03:41:23,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24483 states. [2020-10-14 03:41:24,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24483 to 24136. [2020-10-14 03:41:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24136 states. [2020-10-14 03:41:24,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24136 states to 24136 states and 27378 transitions. [2020-10-14 03:41:24,357 INFO L78 Accepts]: Start accepts. Automaton has 24136 states and 27378 transitions. Word has length 593 [2020-10-14 03:41:24,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:24,358 INFO L479 AbstractCegarLoop]: Abstraction has 24136 states and 27378 transitions. [2020-10-14 03:41:24,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 24136 states and 27378 transitions. [2020-10-14 03:41:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2020-10-14 03:41:24,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:24,374 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:41:24,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:41:24,375 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:24,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:24,375 INFO L82 PathProgramCache]: Analyzing trace with hash -80668000, now seen corresponding path program 1 times [2020-10-14 03:41:24,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:24,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544031651] [2020-10-14 03:41:24,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:24,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:24,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:24,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:25,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:29,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:29,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 620 [2020-10-14 03:41:29,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:41:29,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 03:41:29,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:29,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:41:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:41:29,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:29,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:29,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:29,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:29,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:29,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:29,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:41:29,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:29,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:29,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:29,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:29,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:29,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:41:29,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:29,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:29,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:29,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:29,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:29,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 03:41:29,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:29,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:29,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:41:29,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:29,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:29,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:30,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:30,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:41:30,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:30,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 03:41:30,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:30,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:30,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:30,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:30,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:41:30,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:30,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 03:41:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:30,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:30,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:30,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:41:30,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:30,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:41:30,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:30,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:30,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:30,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:41:30,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:30,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:30,635 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 217 proven. 143 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-14 03:41:30,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544031651] [2020-10-14 03:41:30,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:30,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:30,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266777234] [2020-10-14 03:41:30,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:30,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:30,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:30,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:30,637 INFO L87 Difference]: Start difference. First operand 24136 states and 27378 transitions. Second operand 7 states. [2020-10-14 03:41:35,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:35,500 INFO L93 Difference]: Finished difference Result 50673 states and 57622 transitions. [2020-10-14 03:41:35,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:41:35,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 606 [2020-10-14 03:41:35,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:35,585 INFO L225 Difference]: With dead ends: 50673 [2020-10-14 03:41:35,585 INFO L226 Difference]: Without dead ends: 26541 [2020-10-14 03:41:35,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:41:35,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26541 states. [2020-10-14 03:41:36,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26541 to 26531. [2020-10-14 03:41:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26531 states. [2020-10-14 03:41:36,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26531 states to 26531 states and 30001 transitions. [2020-10-14 03:41:36,156 INFO L78 Accepts]: Start accepts. Automaton has 26531 states and 30001 transitions. Word has length 606 [2020-10-14 03:41:36,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:36,156 INFO L479 AbstractCegarLoop]: Abstraction has 26531 states and 30001 transitions. [2020-10-14 03:41:36,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:36,156 INFO L276 IsEmpty]: Start isEmpty. Operand 26531 states and 30001 transitions. [2020-10-14 03:41:36,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2020-10-14 03:41:36,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:36,176 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:36,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:41:36,177 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:36,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:36,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1407617484, now seen corresponding path program 1 times [2020-10-14 03:41:36,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:36,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674461489] [2020-10-14 03:41:36,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:36,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:36,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:36,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:36,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:41,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:41,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 667 [2020-10-14 03:41:41,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:41:41,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 03:41:41,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:41,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-14 03:41:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 03:41:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:41,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:41,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:41,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:41,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:41,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:41,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:41:41,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:41,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:41,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:41,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:41,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:41,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:41,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:41,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:41,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:41:41,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:41,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:41,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:41,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:41,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:41,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:41,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 03:41:41,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:41,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:41:41,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:41,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 03:41:41,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:41,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-10-14 03:41:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:41,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:41,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:41,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:41:41,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:41,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 03:41:41,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:41,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:41,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:41,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:41,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 03:41:41,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:41,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 03:41:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:41,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:41,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:41,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:41:41,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:41,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:41:41,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:41,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:41:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:41,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:42,333 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 273 proven. 143 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2020-10-14 03:41:42,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674461489] [2020-10-14 03:41:42,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:42,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:42,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166038908] [2020-10-14 03:41:42,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:42,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:42,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:42,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:42,336 INFO L87 Difference]: Start difference. First operand 26531 states and 30001 transitions. Second operand 7 states. [2020-10-14 03:41:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:46,560 INFO L93 Difference]: Finished difference Result 55115 states and 62367 transitions. [2020-10-14 03:41:46,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:41:46,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 651 [2020-10-14 03:41:46,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:46,651 INFO L225 Difference]: With dead ends: 55115 [2020-10-14 03:41:46,651 INFO L226 Difference]: Without dead ends: 28927 [2020-10-14 03:41:46,693 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 03:41:46,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28927 states. [2020-10-14 03:41:47,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28927 to 27894. [2020-10-14 03:41:47,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27894 states. [2020-10-14 03:41:47,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27894 states to 27894 states and 31551 transitions. [2020-10-14 03:41:47,256 INFO L78 Accepts]: Start accepts. Automaton has 27894 states and 31551 transitions. Word has length 651 [2020-10-14 03:41:47,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:47,257 INFO L479 AbstractCegarLoop]: Abstraction has 27894 states and 31551 transitions. [2020-10-14 03:41:47,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 27894 states and 31551 transitions. [2020-10-14 03:41:47,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2020-10-14 03:41:47,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:47,277 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:41:47,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:41:47,278 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:47,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:47,279 INFO L82 PathProgramCache]: Analyzing trace with hash 851579684, now seen corresponding path program 1 times [2020-10-14 03:41:47,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:47,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529770784] [2020-10-14 03:41:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:47,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:47,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:47,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:47,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:48,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:52,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:52,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 691 [2020-10-14 03:41:52,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:41:52,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 03:41:52,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:52,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:52,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:52,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:41:52,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:41:52,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:52,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:52,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:52,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:52,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:52,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:41:52,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:52,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:52,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:52,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:52,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:52,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:52,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:52,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:41:52,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:52,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:52,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:52,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:52,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:52,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:52,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:52,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:52,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:52,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:41:52,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:52,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:41:52,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:52,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:52,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:52,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:52,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:41:52,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:41:52,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:41:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:52,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:52,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:52,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:41:52,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:52,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 03:41:52,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:52,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:41:52,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:52,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2020-10-14 03:41:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:53,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:53,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:53,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:41:53,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:53,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:41:53,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:53,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:53,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:53,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:41:53,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:53,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:53,465 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 297 proven. 143 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2020-10-14 03:41:53,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529770784] [2020-10-14 03:41:53,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:53,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:53,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657275466] [2020-10-14 03:41:53,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:53,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:53,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:53,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:53,468 INFO L87 Difference]: Start difference. First operand 27894 states and 31551 transitions. Second operand 7 states. [2020-10-14 03:41:58,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:58,157 INFO L93 Difference]: Finished difference Result 56225 states and 63811 transitions. [2020-10-14 03:41:58,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:41:58,158 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 675 [2020-10-14 03:41:58,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:58,244 INFO L225 Difference]: With dead ends: 56225 [2020-10-14 03:41:58,244 INFO L226 Difference]: Without dead ends: 28674 [2020-10-14 03:41:58,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:41:58,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28674 states. [2020-10-14 03:41:58,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28674 to 28576. [2020-10-14 03:41:58,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28576 states. [2020-10-14 03:41:58,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28576 states to 28576 states and 32224 transitions. [2020-10-14 03:41:58,893 INFO L78 Accepts]: Start accepts. Automaton has 28576 states and 32224 transitions. Word has length 675 [2020-10-14 03:41:58,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:58,895 INFO L479 AbstractCegarLoop]: Abstraction has 28576 states and 32224 transitions. [2020-10-14 03:41:58,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:58,895 INFO L276 IsEmpty]: Start isEmpty. Operand 28576 states and 32224 transitions. [2020-10-14 03:41:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2020-10-14 03:41:58,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:58,928 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:58,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:41:58,929 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:58,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:58,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1454020984, now seen corresponding path program 1 times [2020-10-14 03:41:58,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:58,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070568644] [2020-10-14 03:41:58,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:59,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:59,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:59,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:00,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:01,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:04,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:04,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 717 [2020-10-14 03:42:04,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:42:04,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 03:42:04,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:04,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:42:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:42:04,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:04,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:04,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:04,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:04,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:04,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:04,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:42:04,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:04,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:04,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:04,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:04,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:04,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:04,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:04,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:04,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:04,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:42:04,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:42:04,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:04,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:04,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:42:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:04,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:04,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:04,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:42:04,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:04,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:42:04,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:04,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:04,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:42:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:04,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:42:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:04,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:04,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:04,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:42:04,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:04,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 03:42:04,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:04,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:42:04,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:04,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 553 [2020-10-14 03:42:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:04,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:04,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:04,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:42:04,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:04,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:42:04,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:04,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:04,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:04,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:42:04,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:04,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:05,797 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 323 proven. 143 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-14 03:42:05,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070568644] [2020-10-14 03:42:05,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:05,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:42:05,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478478702] [2020-10-14 03:42:05,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:42:05,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:05,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:42:05,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:42:05,799 INFO L87 Difference]: Start difference. First operand 28576 states and 32224 transitions. Second operand 8 states. [2020-10-14 03:42:11,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:11,943 INFO L93 Difference]: Finished difference Result 57148 states and 64440 transitions. [2020-10-14 03:42:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:42:11,945 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 701 [2020-10-14 03:42:11,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:12,017 INFO L225 Difference]: With dead ends: 57148 [2020-10-14 03:42:12,017 INFO L226 Difference]: Without dead ends: 28574 [2020-10-14 03:42:12,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:42:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28574 states. [2020-10-14 03:42:12,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28574 to 27890. [2020-10-14 03:42:12,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27890 states. [2020-10-14 03:42:12,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27890 states to 27890 states and 30515 transitions. [2020-10-14 03:42:12,554 INFO L78 Accepts]: Start accepts. Automaton has 27890 states and 30515 transitions. Word has length 701 [2020-10-14 03:42:12,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:12,555 INFO L479 AbstractCegarLoop]: Abstraction has 27890 states and 30515 transitions. [2020-10-14 03:42:12,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:42:12,555 INFO L276 IsEmpty]: Start isEmpty. Operand 27890 states and 30515 transitions. [2020-10-14 03:42:12,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2020-10-14 03:42:12,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:12,576 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:12,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:42:12,576 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:12,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:12,577 INFO L82 PathProgramCache]: Analyzing trace with hash -556555428, now seen corresponding path program 1 times [2020-10-14 03:42:12,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:12,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715420436] [2020-10-14 03:42:12,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:12,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:12,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:12,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:13,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:13,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:17,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:17,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 824 [2020-10-14 03:42:17,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:42:17,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 03:42:17,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:17,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-14 03:42:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 03:42:17,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:17,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:17,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:17,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:17,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:17,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:17,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:42:17,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:17,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:17,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:17,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:17,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:17,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:17,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:17,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:17,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:17,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:42:17,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:17,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:42:17,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:17,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:17,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:17,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:17,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:42:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:17,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:17,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:17,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 03:42:17,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:17,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:42:17,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:17,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:17,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:17,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:17,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:17,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:17,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-10-14 03:42:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:17,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:18,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:18,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 03:42:18,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:18,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:42:18,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:18,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:18,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:18,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:18,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 03:42:18,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:18,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2020-10-14 03:42:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:18,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:18,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:18,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:42:18,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:18,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 03:42:18,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:18,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:18,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:18,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:18,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 03:42:18,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:18,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 658 [2020-10-14 03:42:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:18,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:18,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:18,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:42:18,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:18,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:42:18,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:18,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:42:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:18,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1290 backedges. 437 proven. 143 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2020-10-14 03:42:18,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715420436] [2020-10-14 03:42:18,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:18,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:18,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511292454] [2020-10-14 03:42:18,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:18,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:18,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:18,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:18,800 INFO L87 Difference]: Start difference. First operand 27890 states and 30515 transitions. Second operand 7 states. [2020-10-14 03:42:22,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:22,455 INFO L93 Difference]: Finished difference Result 57167 states and 62777 transitions. [2020-10-14 03:42:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:42:22,456 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 806 [2020-10-14 03:42:22,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:22,524 INFO L225 Difference]: With dead ends: 57167 [2020-10-14 03:42:22,524 INFO L226 Difference]: Without dead ends: 29620 [2020-10-14 03:42:22,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:42:22,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29620 states. [2020-10-14 03:42:22,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29620 to 28244. [2020-10-14 03:42:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28244 states. [2020-10-14 03:42:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28244 states to 28244 states and 31030 transitions. [2020-10-14 03:42:23,009 INFO L78 Accepts]: Start accepts. Automaton has 28244 states and 31030 transitions. Word has length 806 [2020-10-14 03:42:23,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:23,010 INFO L479 AbstractCegarLoop]: Abstraction has 28244 states and 31030 transitions. [2020-10-14 03:42:23,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:23,010 INFO L276 IsEmpty]: Start isEmpty. Operand 28244 states and 31030 transitions. [2020-10-14 03:42:23,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2020-10-14 03:42:23,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:23,043 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:23,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:42:23,043 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:23,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:23,044 INFO L82 PathProgramCache]: Analyzing trace with hash 2031511159, now seen corresponding path program 1 times [2020-10-14 03:42:23,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:23,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65278155] [2020-10-14 03:42:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:23,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:23,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:27,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:27,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 893 [2020-10-14 03:42:27,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:42:27,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4222 [2020-10-14 03:42:27,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:27,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-14 03:42:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 03:42:27,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:27,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:27,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:27,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:27,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:27,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:42:27,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:27,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:27,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:27,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:27,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:27,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:27,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:27,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:27,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:27,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:42:27,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:27,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:42:27,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:27,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:27,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:27,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:42:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:27,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:27,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:27,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:42:27,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:27,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 03:42:27,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:27,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:42:27,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:27,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 03:42:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:27,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:28,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:28,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:42:28,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:28,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-14 03:42:28,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:28,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:28,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 03:42:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:42:28,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-14 03:42:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:28,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:28,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:28,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:42:28,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:28,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:42:28,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:28,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:28,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:28,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-14 03:42:28,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:28,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:28,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2020-10-14 03:42:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:28,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:28,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:28,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:42:28,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:28,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 03:42:28,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:28,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:28,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:28,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:42:28,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:28,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 359 proven. 293 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2020-10-14 03:42:29,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65278155] [2020-10-14 03:42:29,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:29,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:29,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99833848] [2020-10-14 03:42:29,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:29,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:29,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:29,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:29,292 INFO L87 Difference]: Start difference. First operand 28244 states and 31030 transitions. Second operand 7 states. [2020-10-14 03:42:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:33,152 INFO L93 Difference]: Finished difference Result 58554 states and 64342 transitions. [2020-10-14 03:42:33,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:42:33,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 875 [2020-10-14 03:42:33,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:33,212 INFO L225 Difference]: With dead ends: 58554 [2020-10-14 03:42:33,213 INFO L226 Difference]: Without dead ends: 30653 [2020-10-14 03:42:33,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:42:33,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30653 states. [2020-10-14 03:42:33,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30653 to 30304. [2020-10-14 03:42:33,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30304 states. [2020-10-14 03:42:34,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30304 states to 30304 states and 33265 transitions. [2020-10-14 03:42:34,032 INFO L78 Accepts]: Start accepts. Automaton has 30304 states and 33265 transitions. Word has length 875 [2020-10-14 03:42:34,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:34,033 INFO L479 AbstractCegarLoop]: Abstraction has 30304 states and 33265 transitions. [2020-10-14 03:42:34,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:34,033 INFO L276 IsEmpty]: Start isEmpty. Operand 30304 states and 33265 transitions. [2020-10-14 03:42:34,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 888 [2020-10-14 03:42:34,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:34,064 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:34,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:42:34,065 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:34,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:34,065 INFO L82 PathProgramCache]: Analyzing trace with hash -2090721929, now seen corresponding path program 1 times [2020-10-14 03:42:34,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:34,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417041117] [2020-10-14 03:42:34,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:34,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:34,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:34,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:38,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:39,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:39,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 905 [2020-10-14 03:42:39,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:42:39,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 03:42:39,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:39,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 544 [2020-10-14 03:42:39,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:42:39,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:39,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:39,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:39,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:39,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:39,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:39,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:42:39,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:39,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:39,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:39,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:39,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:39,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:39,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:39,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:39,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:39,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:42:39,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:39,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:42:39,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:39,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:39,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:39,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:42:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:39,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:39,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:39,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:42:39,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:39,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:42:39,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:39,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:39,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:39,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:39,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:42:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:39,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:39,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:39,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:42:39,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:39,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:42:39,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:39,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:42:39,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:39,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 03:42:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:39,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:39,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:39,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:42:39,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:39,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 03:42:39,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:39,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:39,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:39,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:39,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:42:39,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:39,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 739 [2020-10-14 03:42:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:40,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:40,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:40,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:42:40,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:42:40,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:40,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:42:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:40,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:40,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1498 backedges. 530 proven. 143 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2020-10-14 03:42:40,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417041117] [2020-10-14 03:42:40,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:40,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:40,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740058588] [2020-10-14 03:42:40,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:40,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:40,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:40,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:40,564 INFO L87 Difference]: Start difference. First operand 30304 states and 33265 transitions. Second operand 7 states. [2020-10-14 03:42:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:44,674 INFO L93 Difference]: Finished difference Result 61296 states and 67351 transitions. [2020-10-14 03:42:44,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:42:44,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 887 [2020-10-14 03:42:44,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:44,732 INFO L225 Difference]: With dead ends: 61296 [2020-10-14 03:42:44,732 INFO L226 Difference]: Without dead ends: 31335 [2020-10-14 03:42:44,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 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 03:42:44,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31335 states. [2020-10-14 03:42:45,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31335 to 31329. [2020-10-14 03:42:45,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31329 states. [2020-10-14 03:42:45,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31329 states to 31329 states and 34403 transitions. [2020-10-14 03:42:45,273 INFO L78 Accepts]: Start accepts. Automaton has 31329 states and 34403 transitions. Word has length 887 [2020-10-14 03:42:45,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:45,274 INFO L479 AbstractCegarLoop]: Abstraction has 31329 states and 34403 transitions. [2020-10-14 03:42:45,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:45,274 INFO L276 IsEmpty]: Start isEmpty. Operand 31329 states and 34403 transitions. [2020-10-14 03:42:45,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 933 [2020-10-14 03:42:45,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:45,301 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:45,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:42:45,301 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:45,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:45,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1336414792, now seen corresponding path program 1 times [2020-10-14 03:42:45,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:45,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775490617] [2020-10-14 03:42:45,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:45,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:46,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:46,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 950 [2020-10-14 03:42:46,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1392 [2020-10-14 03:42:46,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:46,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 938 [2020-10-14 03:42:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 03:42:46,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:47,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:47,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:47,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:47,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:47,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:47,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:42:47,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:47,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:47,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:47,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:47,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:47,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:47,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:47,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:47,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:47,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:42:47,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:47,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 03:42:47,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:47,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:47,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:47,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:47,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:42:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:47,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:47,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:47,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 03:42:47,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:47,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:42:47,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:47,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:47,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:47,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 03:42:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:47,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:47,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:47,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:42:47,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:47,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:42:47,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:47,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:47,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:47,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:47,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:47,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:47,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-14 03:42:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:47,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:47,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:47,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:42:47,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:47,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:42:47,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:47,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:47,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:47,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 03:42:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:47,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:47,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:47,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:42:47,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:47,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:42:47,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:47,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:42:47,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:48,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 1556 trivial. 0 not checked. [2020-10-14 03:42:48,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775490617] [2020-10-14 03:42:48,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:48,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:42:48,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517242000] [2020-10-14 03:42:48,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:42:48,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:48,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:42:48,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:42:48,513 INFO L87 Difference]: Start difference. First operand 31329 states and 34403 transitions. Second operand 5 states. [2020-10-14 03:42:51,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:51,718 INFO L93 Difference]: Finished difference Result 61974 states and 68091 transitions. [2020-10-14 03:42:51,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:42:51,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 932 [2020-10-14 03:42:51,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:51,787 INFO L225 Difference]: With dead ends: 61974 [2020-10-14 03:42:51,787 INFO L226 Difference]: Without dead ends: 30988 [2020-10-14 03:42:51,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 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 03:42:51,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30988 states. [2020-10-14 03:42:52,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30988 to 29620. [2020-10-14 03:42:52,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29620 states. [2020-10-14 03:42:52,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29620 states to 29620 states and 31864 transitions. [2020-10-14 03:42:52,186 INFO L78 Accepts]: Start accepts. Automaton has 29620 states and 31864 transitions. Word has length 932 [2020-10-14 03:42:52,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:52,187 INFO L479 AbstractCegarLoop]: Abstraction has 29620 states and 31864 transitions. [2020-10-14 03:42:52,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:42:52,187 INFO L276 IsEmpty]: Start isEmpty. Operand 29620 states and 31864 transitions. [2020-10-14 03:42:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2020-10-14 03:42:52,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:52,215 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:42:52,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 03:42:52,215 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:52,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:52,216 INFO L82 PathProgramCache]: Analyzing trace with hash 907611845, now seen corresponding path program 1 times [2020-10-14 03:42:52,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:52,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485133391] [2020-10-14 03:42:52,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:52,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:52,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:53,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:54,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:57,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:57,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1049 [2020-10-14 03:42:57,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:42:57,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 03:42:57,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:57,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:57,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:57,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-14 03:42:57,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:42:57,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:57,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:57,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:57,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:57,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:57,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:57,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:42:57,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:57,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:57,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:57,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:57,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:57,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking...