/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=NARROWEST --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/Problem02_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:08:14,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:08:14,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:08:14,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:08:14,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:08:14,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:08:14,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:08:14,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:08:15,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:08:15,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:08:15,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:08:15,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:08:15,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:08:15,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:08:15,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:08:15,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:08:15,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:08:15,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:08:15,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:08:15,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:08:15,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:08:15,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:08:15,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:08:15,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:08:15,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:08:15,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:08:15,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:08:15,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:08:15,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:08:15,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:08:15,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:08:15,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:08:15,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:08:15,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:08:15,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:08:15,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:08:15,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:08:15,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:08:15,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:08:15,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:08:15,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:08:15,028 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 [2020-10-13 06:08:15,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:08:15,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:08:15,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:08:15,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:08:15,051 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:08:15,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:08:15,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:08:15,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:08:15,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:08:15,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:08:15,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:08:15,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:08:15,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:08:15,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:08:15,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:08:15,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:08:15,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:08:15,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:08:15,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:08:15,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:08:15,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:08:15,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:08:15,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:08:15,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:08:15,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:08:15,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:08:15,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:08:15,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:08:15,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:08:15,056 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:08:15,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:08:15,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:08:15,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:08:15,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:08:15,355 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:08:15,355 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-10-13 06:08:15,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a34c9bc11/e6f952a0f99d4cf1be5282a12adc8bcc/FLAGe0b0ae4f3 [2020-10-13 06:08:16,021 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:08:16,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-10-13 06:08:16,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a34c9bc11/e6f952a0f99d4cf1be5282a12adc8bcc/FLAGe0b0ae4f3 [2020-10-13 06:08:16,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a34c9bc11/e6f952a0f99d4cf1be5282a12adc8bcc [2020-10-13 06:08:16,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:08:16,283 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:08:16,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:08:16,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:08:16,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:08:16,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:08:16" (1/1) ... [2020-10-13 06:08:16,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d876c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:16, skipping insertion in model container [2020-10-13 06:08:16,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:08:16" (1/1) ... [2020-10-13 06:08:16,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:08:16,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:08:16,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:08:16,793 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:08:16,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:08:17,009 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:08:17,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:17 WrapperNode [2020-10-13 06:08:17,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:08:17,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:08:17,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:08:17,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:08:17,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:17" (1/1) ... [2020-10-13 06:08:17,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:17" (1/1) ... [2020-10-13 06:08:17,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:17" (1/1) ... [2020-10-13 06:08:17,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:17" (1/1) ... [2020-10-13 06:08:17,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:17" (1/1) ... [2020-10-13 06:08:17,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:17" (1/1) ... [2020-10-13 06:08:17,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:17" (1/1) ... [2020-10-13 06:08:17,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:08:17,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:08:17,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:08:17,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:08:17,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:17" (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 [2020-10-13 06:08:17,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:08:17,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:08:17,179 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:08:17,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:08:17,179 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:08:17,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:08:17,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:08:17,180 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:08:17,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:08:17,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:08:17,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:08:18,313 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:08:18,313 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:08:18,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:08:18 BoogieIcfgContainer [2020-10-13 06:08:18,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:08:18,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:08:18,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:08:18,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:08:18,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:08:16" (1/3) ... [2020-10-13 06:08:18,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d31136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:08:18, skipping insertion in model container [2020-10-13 06:08:18,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:08:17" (2/3) ... [2020-10-13 06:08:18,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d31136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:08:18, skipping insertion in model container [2020-10-13 06:08:18,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:08:18" (3/3) ... [2020-10-13 06:08:18,328 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label03.c [2020-10-13 06:08:18,338 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:08:18,346 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:08:18,361 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:08:18,388 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:08:18,388 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:08:18,388 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:08:18,389 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:08:18,389 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:08:18,390 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:08:18,390 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:08:18,390 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:08:18,414 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-13 06:08:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-13 06:08:18,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:18,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:18,431 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:18,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:18,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1255491721, now seen corresponding path program 1 times [2020-10-13 06:08:18,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:18,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764926507] [2020-10-13 06:08:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:18,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:19,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:20,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:20,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 06:08:20,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:20,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1499 [2020-10-13 06:08:20,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 06:08:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:08:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:08:20,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:08:20,872 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-13 06:08:21,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:21,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:21,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:21,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:21,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:21,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:08:21,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:08:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:21,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:08:21,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764926507] [2020-10-13 06:08:21,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:08:21,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 06:08:21,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438632327] [2020-10-13 06:08:21,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:08:21,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:21,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:08:21,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:08:21,570 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 13 states. [2020-10-13 06:08:21,937 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-13 06:08:22,112 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-13 06:08:22,355 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-10-13 06:08:22,624 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:08:22,874 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:08:23,394 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:08:23,830 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2020-10-13 06:08:24,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:24,916 INFO L93 Difference]: Finished difference Result 536 states and 892 transitions. [2020-10-13 06:08:24,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:08:24,921 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 135 [2020-10-13 06:08:24,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:24,948 INFO L225 Difference]: With dead ends: 536 [2020-10-13 06:08:24,948 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:08:24,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:08:24,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:08:25,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:08:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:08:25,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 323 transitions. [2020-10-13 06:08:25,092 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 323 transitions. Word has length 135 [2020-10-13 06:08:25,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:25,093 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 323 transitions. [2020-10-13 06:08:25,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:08:25,093 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 323 transitions. [2020-10-13 06:08:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-13 06:08:25,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:25,107 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:25,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:08:25,107 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:25,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:25,108 INFO L82 PathProgramCache]: Analyzing trace with hash 603998840, now seen corresponding path program 1 times [2020-10-13 06:08:25,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:25,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167993707] [2020-10-13 06:08:25,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:25,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:25,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:25,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:26,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:26,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 06:08:26,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:26,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1752 [2020-10-13 06:08:26,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:26,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:08:26,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 06:08:26,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:08:26,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:27,723 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 30 [2020-10-13 06:08:27,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:27,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:08:27,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:27,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:27,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:27,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:27,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:27,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:27,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:08:27,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:27,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:08:27,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:27,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:27,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 06:08:27,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:08:28,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167993707] [2020-10-13 06:08:28,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:28,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:08:28,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843454561] [2020-10-13 06:08:28,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:08:28,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:28,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:08:28,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:08:28,091 INFO L87 Difference]: Start difference. First operand 233 states and 323 transitions. Second operand 12 states. [2020-10-13 06:08:28,649 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2020-10-13 06:08:29,348 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2020-10-13 06:08:29,723 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2020-10-13 06:08:30,121 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-13 06:08:30,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:30,637 INFO L93 Difference]: Finished difference Result 549 states and 794 transitions. [2020-10-13 06:08:30,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 06:08:30,644 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 144 [2020-10-13 06:08:30,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:30,647 INFO L225 Difference]: With dead ends: 549 [2020-10-13 06:08:30,647 INFO L226 Difference]: Without dead ends: 236 [2020-10-13 06:08:30,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:08:30,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-13 06:08:30,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-10-13 06:08:30,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-13 06:08:30,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 308 transitions. [2020-10-13 06:08:30,665 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 308 transitions. Word has length 144 [2020-10-13 06:08:30,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:30,666 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 308 transitions. [2020-10-13 06:08:30,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:08:30,666 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 308 transitions. [2020-10-13 06:08:30,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 06:08:30,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:30,669 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:08:30,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:08:30,669 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:30,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:30,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1386528000, now seen corresponding path program 1 times [2020-10-13 06:08:30,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:30,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233293197] [2020-10-13 06:08:30,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:30,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:30,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:31,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:32,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:32,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 06:08:32,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:32,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1520 [2020-10-13 06:08:32,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:08:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 06:08:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:08:32,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:32,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:32,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:32,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:32,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:32,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:32,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:32,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:32,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:32,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:32,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:32,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:32,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:32,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:32,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:32,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:32,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:32,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:32,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:08:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:32,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:08:32,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233293197] [2020-10-13 06:08:32,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:32,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:08:32,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298101235] [2020-10-13 06:08:32,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:08:32,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:32,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:08:32,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:08:32,915 INFO L87 Difference]: Start difference. First operand 233 states and 308 transitions. Second operand 12 states. [2020-10-13 06:08:34,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:34,637 INFO L93 Difference]: Finished difference Result 554 states and 772 transitions. [2020-10-13 06:08:34,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:08:34,637 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 148 [2020-10-13 06:08:34,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:34,641 INFO L225 Difference]: With dead ends: 554 [2020-10-13 06:08:34,641 INFO L226 Difference]: Without dead ends: 327 [2020-10-13 06:08:34,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:08:34,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-13 06:08:34,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2020-10-13 06:08:34,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:08:34,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 397 transitions. [2020-10-13 06:08:34,664 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 397 transitions. Word has length 148 [2020-10-13 06:08:34,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:34,665 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 397 transitions. [2020-10-13 06:08:34,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:08:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 397 transitions. [2020-10-13 06:08:34,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-13 06:08:34,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:34,668 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:08:34,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:08:34,668 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:34,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:34,669 INFO L82 PathProgramCache]: Analyzing trace with hash 931972008, now seen corresponding path program 1 times [2020-10-13 06:08:34,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:34,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021139626] [2020-10-13 06:08:34,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:34,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:34,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:35,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:35,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-13 06:08:35,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:08:35,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-13 06:08:35,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:35,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:35,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 06:08:35,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 06:08:35,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:35,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:35,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:35,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:35,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:35,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:35,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:08:35,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:35,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:35,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:35,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:35,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:35,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:35,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:35,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:35,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:35,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:35,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:35,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:35,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:35,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:35,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:35,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:35,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:08:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:35,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:35,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:35,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:08:35,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:35,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:08:35,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:35,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:35,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:35,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:08:35,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:35,477 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:08:35,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021139626] [2020-10-13 06:08:35,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:35,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:35,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49428724] [2020-10-13 06:08:35,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:35,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:35,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:35,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:35,479 INFO L87 Difference]: Start difference. First operand 318 states and 397 transitions. Second operand 5 states. [2020-10-13 06:08:36,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:36,569 INFO L93 Difference]: Finished difference Result 724 states and 951 transitions. [2020-10-13 06:08:36,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:36,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-10-13 06:08:36,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:36,573 INFO L225 Difference]: With dead ends: 724 [2020-10-13 06:08:36,574 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 06:08:36,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:36,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 06:08:36,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2020-10-13 06:08:36,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 06:08:36,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 395 transitions. [2020-10-13 06:08:36,593 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 395 transitions. Word has length 170 [2020-10-13 06:08:36,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:36,593 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 395 transitions. [2020-10-13 06:08:36,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:36,594 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 395 transitions. [2020-10-13 06:08:36,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-13 06:08:36,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:36,596 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:36,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:08:36,597 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:36,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:36,597 INFO L82 PathProgramCache]: Analyzing trace with hash -410993143, now seen corresponding path program 1 times [2020-10-13 06:08:36,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:36,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113741063] [2020-10-13 06:08:36,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:36,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:36,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:37,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:37,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 06:08:37,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:37,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1306 [2020-10-13 06:08:37,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:08:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:08:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:08:37,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:38,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:38,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:38,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:38,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:38,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:38,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:38,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:38,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:38,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:38,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:38,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:38,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:38,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:08:38,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 06:08:38,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:08:38,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:38,693 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:08:38,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113741063] [2020-10-13 06:08:38,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:38,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:08:38,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123006026] [2020-10-13 06:08:38,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:08:38,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:38,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:08:38,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:08:38,697 INFO L87 Difference]: Start difference. First operand 318 states and 395 transitions. Second operand 12 states. [2020-10-13 06:08:40,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:40,441 INFO L93 Difference]: Finished difference Result 723 states and 948 transitions. [2020-10-13 06:08:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:08:40,441 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 169 [2020-10-13 06:08:40,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:40,444 INFO L225 Difference]: With dead ends: 723 [2020-10-13 06:08:40,444 INFO L226 Difference]: Without dead ends: 401 [2020-10-13 06:08:40,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2020-10-13 06:08:40,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-13 06:08:40,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2020-10-13 06:08:40,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:08:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2020-10-13 06:08:40,464 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 169 [2020-10-13 06:08:40,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:40,464 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2020-10-13 06:08:40,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:08:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2020-10-13 06:08:40,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-13 06:08:40,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:40,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:40,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:08:40,468 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:40,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:40,469 INFO L82 PathProgramCache]: Analyzing trace with hash -776139634, now seen corresponding path program 1 times [2020-10-13 06:08:40,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:40,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665019302] [2020-10-13 06:08:40,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:40,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:40,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 06:08:42,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:42,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1772 [2020-10-13 06:08:42,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:42,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 06:08:42,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:08:42,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:42,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:42,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:42,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:42,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:42,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:42,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:08:42,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:42,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:08:42,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:42,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:08:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:42,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:42,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:42,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:08:42,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:08:42,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:08:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:08:42,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665019302] [2020-10-13 06:08:42,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:42,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:42,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869081563] [2020-10-13 06:08:42,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:42,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:42,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:42,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:42,596 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand 5 states. [2020-10-13 06:08:43,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:43,685 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2020-10-13 06:08:43,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:43,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-10-13 06:08:43,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:43,689 INFO L225 Difference]: With dead ends: 874 [2020-10-13 06:08:43,689 INFO L226 Difference]: Without dead ends: 399 [2020-10-13 06:08:43,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:43,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-13 06:08:43,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 394. [2020-10-13 06:08:43,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-13 06:08:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 472 transitions. [2020-10-13 06:08:43,712 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 472 transitions. Word has length 177 [2020-10-13 06:08:43,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:43,713 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 472 transitions. [2020-10-13 06:08:43,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:43,713 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 472 transitions. [2020-10-13 06:08:43,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-13 06:08:43,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:43,717 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:43,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:08:43,717 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:43,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:43,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1730947597, now seen corresponding path program 1 times [2020-10-13 06:08:43,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:43,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102286259] [2020-10-13 06:08:43,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:43,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:43,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:44,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:44,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-13 06:08:44,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:44,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1077 [2020-10-13 06:08:44,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:08:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 06:08:44,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:08:44,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:45,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:45,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:45,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:45,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:45,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:45,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:08:45,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:45,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:45,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:45,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:45,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:08:45,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:45,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:08:45,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:45,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:45,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:45,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:08:45,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:08:45,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102286259] [2020-10-13 06:08:45,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:45,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:08:45,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488421921] [2020-10-13 06:08:45,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:08:45,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:45,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:08:45,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:08:45,816 INFO L87 Difference]: Start difference. First operand 394 states and 472 transitions. Second operand 12 states. [2020-10-13 06:08:46,249 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:08:48,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:48,190 INFO L93 Difference]: Finished difference Result 886 states and 1110 transitions. [2020-10-13 06:08:48,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:08:48,192 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 186 [2020-10-13 06:08:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:48,195 INFO L225 Difference]: With dead ends: 886 [2020-10-13 06:08:48,195 INFO L226 Difference]: Without dead ends: 498 [2020-10-13 06:08:48,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:08:48,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-10-13 06:08:48,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 477. [2020-10-13 06:08:48,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-13 06:08:48,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 561 transitions. [2020-10-13 06:08:48,218 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 561 transitions. Word has length 186 [2020-10-13 06:08:48,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:48,219 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 561 transitions. [2020-10-13 06:08:48,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:08:48,219 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 561 transitions. [2020-10-13 06:08:48,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-13 06:08:48,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:48,222 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:48,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:08:48,223 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:48,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:48,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1209521119, now seen corresponding path program 1 times [2020-10-13 06:08:48,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:48,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304122167] [2020-10-13 06:08:48,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:48,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:48,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:48,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:49,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:49,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-13 06:08:49,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:08:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1336 [2020-10-13 06:08:49,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:08:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 06:08:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:08:49,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:50,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:50,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:50,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:50,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:50,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:50,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:50,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:50,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:50,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:50,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:50,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:50,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:08:50,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:50,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:08:50,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 06:08:50,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:50,498 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:08:50,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304122167] [2020-10-13 06:08:50,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:50,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:08:50,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234071090] [2020-10-13 06:08:50,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:08:50,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:50,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:08:50,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:08:50,501 INFO L87 Difference]: Start difference. First operand 477 states and 561 transitions. Second operand 12 states. [2020-10-13 06:08:51,363 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-13 06:08:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:52,360 INFO L93 Difference]: Finished difference Result 1040 states and 1272 transitions. [2020-10-13 06:08:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:08:52,361 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 192 [2020-10-13 06:08:52,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:52,364 INFO L225 Difference]: With dead ends: 1040 [2020-10-13 06:08:52,364 INFO L226 Difference]: Without dead ends: 569 [2020-10-13 06:08:52,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:08:52,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-10-13 06:08:52,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 556. [2020-10-13 06:08:52,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-13 06:08:52,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 645 transitions. [2020-10-13 06:08:52,385 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 645 transitions. Word has length 192 [2020-10-13 06:08:52,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:52,386 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 645 transitions. [2020-10-13 06:08:52,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:08:52,386 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 645 transitions. [2020-10-13 06:08:52,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-13 06:08:52,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:52,390 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:52,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:08:52,390 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:52,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:52,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1777585579, now seen corresponding path program 1 times [2020-10-13 06:08:52,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:52,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651407959] [2020-10-13 06:08:52,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:52,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:52,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:52,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:52,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:54,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:54,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-13 06:08:54,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:54,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1761 [2020-10-13 06:08:54,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:54,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:08:54,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 06:08:54,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 06:08:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:54,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:54,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:54,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:54,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:54,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:54,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:54,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:54,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:54,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:08:54,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:54,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:54,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:54,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:08:54,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:54,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:08:54,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:54,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:54,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:54,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 06:08:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:54,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:54,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:54,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 06:08:54,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:54,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 06:08:54,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:54,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:54,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:54,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 06:08:54,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:08:54,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651407959] [2020-10-13 06:08:54,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:54,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:08:54,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813084912] [2020-10-13 06:08:54,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:08:54,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:54,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:08:54,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:08:54,536 INFO L87 Difference]: Start difference. First operand 556 states and 645 transitions. Second operand 5 states. [2020-10-13 06:08:55,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:08:55,618 INFO L93 Difference]: Finished difference Result 1203 states and 1454 transitions. [2020-10-13 06:08:55,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:08:55,622 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2020-10-13 06:08:55,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:08:55,625 INFO L225 Difference]: With dead ends: 1203 [2020-10-13 06:08:55,625 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 06:08:55,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:08:55,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 06:08:55,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 457. [2020-10-13 06:08:55,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-10-13 06:08:55,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 533 transitions. [2020-10-13 06:08:55,644 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 533 transitions. Word has length 217 [2020-10-13 06:08:55,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:08:55,644 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 533 transitions. [2020-10-13 06:08:55,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:08:55,644 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 533 transitions. [2020-10-13 06:08:55,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-13 06:08:55,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:08:55,652 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:08:55,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:08:55,652 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:08:55,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:08:55,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1579795037, now seen corresponding path program 1 times [2020-10-13 06:08:55,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:08:55,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697522620] [2020-10-13 06:08:55,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:08:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:55,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:55,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:56,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:58,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:58,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-13 06:08:58,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:08:58,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2845 [2020-10-13 06:08:58,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:08:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 06:08:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:08:58,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:59,076 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2020-10-13 06:08:59,241 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 43 [2020-10-13 06:08:59,394 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 39 [2020-10-13 06:08:59,538 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 35 [2020-10-13 06:08:59,686 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 30 [2020-10-13 06:08:59,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:08:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:59,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:59,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:59,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:08:59,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:59,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:08:59,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:59,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:59,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:59,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:59,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:08:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:59,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:59,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:59,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:08:59,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:59,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:08:59,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:08:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:08:59,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:59,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:08:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:08:59,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:08:59,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:08:59,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:08:59,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:08:59,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:08:59,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:08:59,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:08:59,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:08:59,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:08:59,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:08:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:08:59,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697522620] [2020-10-13 06:08:59,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:08:59,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:08:59,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602287860] [2020-10-13 06:08:59,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:08:59,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:08:59,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:08:59,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:08:59,975 INFO L87 Difference]: Start difference. First operand 457 states and 533 transitions. Second operand 12 states. [2020-10-13 06:09:00,564 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 06:09:00,914 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 102 [2020-10-13 06:09:01,205 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2020-10-13 06:09:01,647 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2020-10-13 06:09:01,919 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2020-10-13 06:09:02,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:02,675 INFO L93 Difference]: Finished difference Result 1000 states and 1211 transitions. [2020-10-13 06:09:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:09:02,676 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 228 [2020-10-13 06:09:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:02,680 INFO L225 Difference]: With dead ends: 1000 [2020-10-13 06:09:02,680 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 06:09:02,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:09:02,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 06:09:02,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 534. [2020-10-13 06:09:02,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-13 06:09:02,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 613 transitions. [2020-10-13 06:09:02,698 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 613 transitions. Word has length 228 [2020-10-13 06:09:02,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:02,699 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 613 transitions. [2020-10-13 06:09:02,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:09:02,699 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 613 transitions. [2020-10-13 06:09:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-13 06:09:02,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:02,701 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:02,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:09:02,702 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:02,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:02,702 INFO L82 PathProgramCache]: Analyzing trace with hash 259892337, now seen corresponding path program 1 times [2020-10-13 06:09:02,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:02,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976238220] [2020-10-13 06:09:02,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:02,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:02,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:03,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-13 06:09:03,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:03,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-10-13 06:09:03,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-13 06:09:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 06:09:03,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:03,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:03,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:03,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:03,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:03,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:03,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:03,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:03,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:03,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:03,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:03,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:03,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:09:03,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:03,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:09:03,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:03,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:03,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:03,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 06:09:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:03,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:03,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:03,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:09:03,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:03,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 06:09:03,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:03,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:03,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:03,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:09:03,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:03,799 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 06:09:03,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976238220] [2020-10-13 06:09:03,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:03,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:09:03,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99522053] [2020-10-13 06:09:03,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:09:03,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:03,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:09:03,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:03,801 INFO L87 Difference]: Start difference. First operand 534 states and 613 transitions. Second operand 6 states. [2020-10-13 06:09:05,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:05,071 INFO L93 Difference]: Finished difference Result 1245 states and 1526 transitions. [2020-10-13 06:09:05,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 06:09:05,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 241 [2020-10-13 06:09:05,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:05,075 INFO L225 Difference]: With dead ends: 1245 [2020-10-13 06:09:05,075 INFO L226 Difference]: Without dead ends: 465 [2020-10-13 06:09:05,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:09:05,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-13 06:09:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 458. [2020-10-13 06:09:05,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-13 06:09:05,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 530 transitions. [2020-10-13 06:09:05,092 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 530 transitions. Word has length 241 [2020-10-13 06:09:05,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:05,092 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 530 transitions. [2020-10-13 06:09:05,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:09:05,093 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 530 transitions. [2020-10-13 06:09:05,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-13 06:09:05,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:05,095 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:09:05,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:09:05,095 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:05,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:05,096 INFO L82 PathProgramCache]: Analyzing trace with hash 549440510, now seen corresponding path program 1 times [2020-10-13 06:09:05,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:05,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109638539] [2020-10-13 06:09:05,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:05,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:05,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:06,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:09,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:09,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-13 06:09:09,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:09:09,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4549 [2020-10-13 06:09:09,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:09:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 06:09:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:09:09,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:10,146 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 34 [2020-10-13 06:09:10,284 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 32 [2020-10-13 06:09:10,431 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 31 [2020-10-13 06:09:10,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:10,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:10,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:10,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:10,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 06:09:10,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:09:10,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:10,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:10,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 06:09:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:09:10,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:09:10,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:10,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:10,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 06:09:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:10,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:10,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:10,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:09:10,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:10,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:09:10,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:09:10,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:10,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:09:10,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 06:09:10,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109638539] [2020-10-13 06:09:10,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:10,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:09:10,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090781268] [2020-10-13 06:09:10,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:09:10,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:10,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:09:10,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:09:10,841 INFO L87 Difference]: Start difference. First operand 458 states and 530 transitions. Second operand 13 states. [2020-10-13 06:09:11,639 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2020-10-13 06:09:11,861 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2020-10-13 06:09:12,298 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-10-13 06:09:13,041 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-10-13 06:09:13,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:13,924 INFO L93 Difference]: Finished difference Result 1152 states and 1416 transitions. [2020-10-13 06:09:13,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:09:13,925 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 248 [2020-10-13 06:09:13,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:13,928 INFO L225 Difference]: With dead ends: 1152 [2020-10-13 06:09:13,928 INFO L226 Difference]: Without dead ends: 466 [2020-10-13 06:09:13,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:09:13,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-13 06:09:13,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 461. [2020-10-13 06:09:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-10-13 06:09:13,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 541 transitions. [2020-10-13 06:09:13,942 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 541 transitions. Word has length 248 [2020-10-13 06:09:13,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:13,943 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 541 transitions. [2020-10-13 06:09:13,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:09:13,943 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 541 transitions. [2020-10-13 06:09:13,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-13 06:09:13,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:13,945 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:13,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:09:13,946 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:13,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:13,946 INFO L82 PathProgramCache]: Analyzing trace with hash 870781817, now seen corresponding path program 1 times [2020-10-13 06:09:13,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:13,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768236472] [2020-10-13 06:09:13,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:14,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:14,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:14,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:14,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:16,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:16,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-13 06:09:16,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:09:16,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2034 [2020-10-13 06:09:16,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:16,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 06:09:16,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 06:09:16,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:09:16,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:16,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:16,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:16,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:16,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:16,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:16,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:16,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:16,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:16,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:16,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:16,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:16,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:16,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:16,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:16,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:16,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:16,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:09:16,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:16,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:16,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:09:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:16,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:16,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:09:16,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:09:16,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:09:16,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:16,464 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:09:16,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768236472] [2020-10-13 06:09:16,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:16,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:09:16,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288421886] [2020-10-13 06:09:16,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:09:16,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:16,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:09:16,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:09:16,466 INFO L87 Difference]: Start difference. First operand 461 states and 541 transitions. Second operand 12 states. [2020-10-13 06:09:17,246 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2020-10-13 06:09:17,434 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-13 06:09:17,641 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 06:09:17,828 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2020-10-13 06:09:18,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:18,379 INFO L93 Difference]: Finished difference Result 954 states and 1138 transitions. [2020-10-13 06:09:18,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 06:09:18,382 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 263 [2020-10-13 06:09:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:18,385 INFO L225 Difference]: With dead ends: 954 [2020-10-13 06:09:18,385 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:09:18,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-13 06:09:18,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:09:18,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:09:18,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:09:18,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 583 transitions. [2020-10-13 06:09:18,407 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 583 transitions. Word has length 263 [2020-10-13 06:09:18,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:18,407 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 583 transitions. [2020-10-13 06:09:18,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:09:18,407 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 583 transitions. [2020-10-13 06:09:18,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-13 06:09:18,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:18,410 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:18,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:09:18,410 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:18,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:18,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1487921098, now seen corresponding path program 1 times [2020-10-13 06:09:18,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:18,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722483005] [2020-10-13 06:09:18,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:18,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:18,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:18,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:18,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:18,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:20,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:20,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-13 06:09:20,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:09:20,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1904 [2020-10-13 06:09:20,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:20,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:20,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-10-13 06:09:20,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:09:20,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:20,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:20,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:20,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:20,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:20,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:20,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:20,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:20,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:20,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:20,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:20,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:20,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:20,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:20,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:20,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:20,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:20,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:20,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:20,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:20,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:09:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:20,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:20,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:20,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:09:20,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:20,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:09:20,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:20,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:20,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:20,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:20,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:20,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:09:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:20,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:20,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:20,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:09:20,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:20,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:09:20,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:20,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:20,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 06:09:20,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:20,662 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 06:09:20,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722483005] [2020-10-13 06:09:20,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:20,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:20,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535175331] [2020-10-13 06:09:20,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:20,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:20,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:20,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:20,664 INFO L87 Difference]: Start difference. First operand 496 states and 583 transitions. Second operand 5 states. [2020-10-13 06:09:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:21,538 INFO L93 Difference]: Finished difference Result 1072 states and 1301 transitions. [2020-10-13 06:09:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:21,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-10-13 06:09:21,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:21,546 INFO L225 Difference]: With dead ends: 1072 [2020-10-13 06:09:21,546 INFO L226 Difference]: Without dead ends: 499 [2020-10-13 06:09:21,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:21,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-10-13 06:09:21,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 496. [2020-10-13 06:09:21,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-13 06:09:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 578 transitions. [2020-10-13 06:09:21,565 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 578 transitions. Word has length 277 [2020-10-13 06:09:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:21,565 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 578 transitions. [2020-10-13 06:09:21,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:21,565 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 578 transitions. [2020-10-13 06:09:21,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-13 06:09:21,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:21,568 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 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] [2020-10-13 06:09:21,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:09:21,568 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:21,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:21,569 INFO L82 PathProgramCache]: Analyzing trace with hash 328090654, now seen corresponding path program 1 times [2020-10-13 06:09:21,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:21,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243156766] [2020-10-13 06:09:21,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:21,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:21,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:21,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:21,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:21,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:22,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:22,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:23,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:23,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:24,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:24,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-13 06:09:24,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 06:09:24,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2841 [2020-10-13 06:09:24,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:09:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 06:09:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:09:24,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:25,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:25,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:25,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:25,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:25,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:25,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:25,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:25,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:25,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:25,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:09:25,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:25,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:25,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:25,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:09:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:25,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:09:25,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:25,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:09:25,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:25,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:25,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:25,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:09:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:25,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:25,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:25,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:09:25,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:25,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:09:25,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:25,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 06:09:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:09:25,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 141 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:09:25,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243156766] [2020-10-13 06:09:25,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:25,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:09:25,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587553837] [2020-10-13 06:09:25,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:09:25,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:25,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:09:25,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:09:25,404 INFO L87 Difference]: Start difference. First operand 496 states and 578 transitions. Second operand 13 states. [2020-10-13 06:09:26,164 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:09:26,488 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-10-13 06:09:26,769 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-10-13 06:09:27,212 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2020-10-13 06:09:27,654 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-10-13 06:09:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:28,589 INFO L93 Difference]: Finished difference Result 1366 states and 1671 transitions. [2020-10-13 06:09:28,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:09:28,590 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 284 [2020-10-13 06:09:28,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:28,595 INFO L225 Difference]: With dead ends: 1366 [2020-10-13 06:09:28,595 INFO L226 Difference]: Without dead ends: 875 [2020-10-13 06:09:28,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:09:28,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2020-10-13 06:09:28,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 867. [2020-10-13 06:09:28,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:09:28,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 998 transitions. [2020-10-13 06:09:28,621 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 998 transitions. Word has length 284 [2020-10-13 06:09:28,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:28,621 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 998 transitions. [2020-10-13 06:09:28,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:09:28,622 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 998 transitions. [2020-10-13 06:09:28,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-13 06:09:28,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:28,625 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:28,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:09:28,625 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:28,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:28,626 INFO L82 PathProgramCache]: Analyzing trace with hash 80191465, now seen corresponding path program 1 times [2020-10-13 06:09:28,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:28,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778261332] [2020-10-13 06:09:28,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:28,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:28,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:29,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:29,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-10-13 06:09:29,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:09:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 665 [2020-10-13 06:09:29,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 06:09:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:09:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:29,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:29,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:29,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:29,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:29,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:29,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:09:29,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:29,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:29,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:29,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:29,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:29,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:29,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:29,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:29,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:29,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:29,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:09:29,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:29,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:29,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:09:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:29,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:29,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:29,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:09:29,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:29,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:09:29,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:29,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:09:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:29,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:29,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:29,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:09:29,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:29,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:09:29,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:29,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:29,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:29,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:09:29,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 148 proven. 3 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-13 06:09:30,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778261332] [2020-10-13 06:09:30,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:30,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:30,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360520880] [2020-10-13 06:09:30,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:30,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:30,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:30,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:30,111 INFO L87 Difference]: Start difference. First operand 867 states and 998 transitions. Second operand 5 states. [2020-10-13 06:09:30,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:30,986 INFO L93 Difference]: Finished difference Result 1819 states and 2141 transitions. [2020-10-13 06:09:30,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:30,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 289 [2020-10-13 06:09:30,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:30,996 INFO L225 Difference]: With dead ends: 1819 [2020-10-13 06:09:30,997 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:09:30,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:31,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:09:31,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:09:31,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:09:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 983 transitions. [2020-10-13 06:09:31,022 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 983 transitions. Word has length 289 [2020-10-13 06:09:31,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:31,023 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 983 transitions. [2020-10-13 06:09:31,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:31,023 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 983 transitions. [2020-10-13 06:09:31,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-13 06:09:31,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:31,026 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:31,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:09:31,027 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:31,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:31,027 INFO L82 PathProgramCache]: Analyzing trace with hash 468325595, now seen corresponding path program 1 times [2020-10-13 06:09:31,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:31,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098267690] [2020-10-13 06:09:31,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:31,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:31,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:31,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:31,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:31,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:33,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:33,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-13 06:09:33,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:09:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2103 [2020-10-13 06:09:33,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-13 06:09:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:09:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:33,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:33,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:33,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:33,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:33,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:33,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:09:33,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:33,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:33,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:33,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:33,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:33,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:33,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:33,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:33,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:33,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:33,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:09:33,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:33,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:33,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:33,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:33,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:09:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:33,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:33,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:33,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:09:33,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:33,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:09:33,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:33,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:33,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:33,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:09:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:33,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:33,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:33,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 06:09:33,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:33,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:09:33,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:33,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:33,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 06:09:33,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:09:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-10-13 06:09:33,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098267690] [2020-10-13 06:09:33,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:33,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:09:33,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024046449] [2020-10-13 06:09:33,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:09:33,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:33,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:09:33,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:09:33,837 INFO L87 Difference]: Start difference. First operand 867 states and 983 transitions. Second operand 5 states. [2020-10-13 06:09:34,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:34,800 INFO L93 Difference]: Finished difference Result 1817 states and 2103 transitions. [2020-10-13 06:09:34,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:09:34,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-10-13 06:09:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:34,805 INFO L225 Difference]: With dead ends: 1817 [2020-10-13 06:09:34,805 INFO L226 Difference]: Without dead ends: 872 [2020-10-13 06:09:34,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:09:34,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2020-10-13 06:09:34,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 867. [2020-10-13 06:09:34,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-10-13 06:09:34,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 970 transitions. [2020-10-13 06:09:34,830 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 970 transitions. Word has length 294 [2020-10-13 06:09:34,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:34,830 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 970 transitions. [2020-10-13 06:09:34,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:09:34,831 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 970 transitions. [2020-10-13 06:09:34,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-13 06:09:34,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:09:34,835 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:09:34,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:09:34,835 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:09:34,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:09:34,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1164878076, now seen corresponding path program 1 times [2020-10-13 06:09:34,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:09:34,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838296589] [2020-10-13 06:09:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:09:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:34,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:35,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:36,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:36,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:36,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:38,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-13 06:09:38,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 06:09:38,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3453 [2020-10-13 06:09:38,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:38,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:38,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-10-13 06:09:38,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:09:38,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:38,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:09:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:38,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:38,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:09:38,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:38,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:09:38,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:38,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:38,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:38,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:38,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:38,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:09:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:38,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:38,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:09:38,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:38,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:09:38,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:38,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:38,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:38,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:38,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:38,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 06:09:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:38,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:38,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 06:09:38,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:38,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:09:38,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:38,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:09:38,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:09:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:38,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 06:09:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:38,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:38,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:09:38,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:38,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:09:38,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:09:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:09:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 06:09:38,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:38,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-13 06:09:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:09:38,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:09:38,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:09:38,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 06:09:38,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:09:38,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 06:09:38,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:09:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:09:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:09:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:09:38,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:09:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-13 06:09:38,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838296589] [2020-10-13 06:09:38,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:09:38,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:09:38,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128371229] [2020-10-13 06:09:38,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:09:38,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:09:38,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:09:38,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:09:38,834 INFO L87 Difference]: Start difference. First operand 867 states and 970 transitions. Second operand 7 states. [2020-10-13 06:09:39,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:09:39,530 INFO L93 Difference]: Finished difference Result 1260 states and 1387 transitions. [2020-10-13 06:09:39,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:09:39,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 349 [2020-10-13 06:09:39,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:09:39,531 INFO L225 Difference]: With dead ends: 1260 [2020-10-13 06:09:39,531 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:09:39,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:09:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:09:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:09:39,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:09:39,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:09:39,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 349 [2020-10-13 06:09:39,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:09:39,538 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:09:39,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:09:39,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:09:39,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:09:39,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:09:39,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:09:40,406 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 137 [2020-10-13 06:09:41,180 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 178 [2020-10-13 06:09:43,178 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 254 DAG size of output: 184 [2020-10-13 06:09:43,743 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 81 [2020-10-13 06:09:44,796 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 175 DAG size of output: 107 [2020-10-13 06:09:44,800 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:09:44,801 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-10-13 06:09:44,801 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:09:44,802 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,802 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,802 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,802 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,802 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,802 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-10-13 06:09:44,802 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-10-13 06:09:44,802 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-13 06:09:44,803 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-13 06:09:44,803 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-13 06:09:44,803 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-13 06:09:44,803 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-13 06:09:44,803 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-10-13 06:09:44,803 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-10-13 06:09:44,803 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-10-13 06:09:44,803 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:09:44,803 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-10-13 06:09:44,804 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-10-13 06:09:44,804 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,804 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,804 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,804 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,804 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-10-13 06:09:44,804 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,804 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-10-13 06:09:44,804 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-13 06:09:44,804 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-13 06:09:44,805 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-13 06:09:44,805 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-13 06:09:44,805 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-13 06:09:44,805 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-10-13 06:09:44,805 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:09:44,805 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-10-13 06:09:44,805 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-10-13 06:09:44,805 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-10-13 06:09:44,805 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-10-13 06:09:44,806 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:09:44,806 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-10-13 06:09:44,806 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-10-13 06:09:44,806 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,806 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,806 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,806 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,806 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,807 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 559) no Hoare annotation was computed. [2020-10-13 06:09:44,807 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:09:44,807 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-10-13 06:09:44,807 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-10-13 06:09:44,807 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-13 06:09:44,807 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-13 06:09:44,807 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-13 06:09:44,807 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-13 06:09:44,807 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-13 06:09:44,808 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-10-13 06:09:44,808 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-13 06:09:44,808 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-10-13 06:09:44,808 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,808 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,808 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,808 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,808 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,808 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-10-13 06:09:44,809 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-10-13 06:09:44,810 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-10-13 06:09:44,810 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,810 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,810 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,810 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,810 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,810 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-10-13 06:09:44,810 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-10-13 06:09:44,810 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-13 06:09:44,810 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-13 06:09:44,811 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-13 06:09:44,811 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-13 06:09:44,811 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-10-13 06:09:44,811 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-10-13 06:09:44,811 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-10-13 06:09:44,811 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-10-13 06:09:44,811 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-10-13 06:09:44,811 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-10-13 06:09:44,811 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-10-13 06:09:44,811 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:09:44,812 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-10-13 06:09:44,812 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-10-13 06:09:44,812 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,812 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,812 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,812 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,812 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-10-13 06:09:44,812 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,812 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-13 06:09:44,813 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-13 06:09:44,814 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-13 06:09:44,814 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-10-13 06:09:44,814 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-10-13 06:09:44,814 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-10-13 06:09:44,814 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-10-13 06:09:44,814 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-10-13 06:09:44,814 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,814 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,814 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,814 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-10-13 06:09:44,815 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-10-13 06:09:44,816 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-10-13 06:09:44,816 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-10-13 06:09:44,816 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,816 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,816 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,816 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,816 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,816 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,816 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-10-13 06:09:44,816 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-10-13 06:09:44,817 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-10-13 06:09:44,817 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-10-13 06:09:44,817 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-13 06:09:44,817 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-13 06:09:44,817 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-13 06:09:44,817 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-13 06:09:44,817 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-13 06:09:44,817 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-10-13 06:09:44,817 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-10-13 06:09:44,818 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-10-13 06:09:44,818 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-10-13 06:09:44,818 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-10-13 06:09:44,818 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,818 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,818 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,819 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse44 (= |old(~a19~0)| 1)) (.cse2 (= |old(~a25~0)| 1)) (.cse4 (= |old(~a11~0)| 1)) (.cse8 (= 7 ~a28~0)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse7 (= ~a17~0 8)) (.cse30 (= ~a28~0 9)) (.cse13 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (not (= 0 |old(~a19~0)|))) (.cse0 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse31 (not (<= |old(~a25~0)| 1))) (.cse15 (not (<= |old(~a19~0)| 1))) (.cse32 (not (<= |old(~a11~0)| 1))) (.cse18 (not (<= 1 |old(~a19~0)|))) (.cse34 (<= 1 ~a11~0)) (.cse35 (<= 1 ~a25~0)) (.cse36 (<= ~a11~0 1)) (.cse37 (<= ~a25~0 1)) (.cse38 (not (<= 1 |old(~a11~0)|))) (.cse39 (not (<= 1 |old(~a25~0)|))) (.cse17 (not (<= |old(~a28~0)| 10))) (.cse21 (< 9 ~a28~0)) (.cse23 (< 7 ~a17~0)) (.cse24 (<= ~a28~0 10)) (.cse20 (not (< 7 |old(~a17~0)|))) (.cse19 (and (not (<= 2 |old(~a11~0)|)) (not (<= |old(~a11~0)| 0)))) (.cse25 (not (< 9 |old(~a28~0)|))) (.cse11 (not (= 7 |old(~a17~0)|))) (.cse12 (= 7 ~a17~0)) (.cse28 (not (= 9 |old(~a28~0)|))) (.cse41 (and .cse5 .cse6 .cse7 .cse30 .cse13)) (.cse42 (and .cse5 .cse6 .cse7 .cse8 .cse13)) (.cse10 (not (= 7 |old(~a28~0)|))) (.cse14 (not .cse4)) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse40 (not (= 0 |old(~a25~0)|))) (.cse43 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse26 (not .cse2)) (.cse16 (not (<= |old(~a17~0)| 8))) (.cse27 (not .cse44)) (.cse33 (not (<= 8 |old(~a17~0)|))) (.cse29 (= ~a25~0 1)) (.cse22 (<= ~a17~0 8)) (.cse9 (not (= ~a21~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and (= ~a19~0 0) .cse5 .cse6 .cse7 .cse8) .cse9 .cse10) (or (not (= 10 |old(~a28~0)|)) .cse11 .cse1 (not (= |old(~a19~0)| |old(~a25~0)|)) .cse9 (and .cse12 .cse5 (= ~a25~0 ~a19~0) .cse13 (= ~a28~0 10)) .cse14) (or .cse0 .cse15 .cse16 .cse17 .cse18 .cse9 .cse19 .cse20 (and .cse5 .cse21 .cse6 .cse22 .cse23 .cse24 .cse13) .cse25) (or .cse26 .cse27 .cse3 .cse28 .cse9 (and .cse5 .cse7 .cse29 .cse30 .cse13)) (or .cse31 .cse15 .cse16 .cse32 .cse17 .cse33 .cse18 (and (= ~a17~0 |old(~a17~0)|) .cse34 (<= 10 ~a28~0) .cse35 .cse36 .cse37 .cse24 .cse13) (not (<= 10 |old(~a28~0)|)) .cse9 .cse38 .cse39) (or (not (= |old(~a11~0)| |old(~a19~0)|)) .cse3 .cse40 .cse28 .cse9 .cse41 .cse14) (or .cse31 (not (<= |old(~a28~0)| 7)) .cse15 .cse32 (not (<= 7 |old(~a17~0)|)) .cse18 (not (<= |old(~a17~0)| 7)) (not (<= 7 |old(~a28~0)|)) (and .cse34 (<= 7 ~a17~0) .cse35 (<= 7 ~a28~0) .cse36 (<= ~a28~0 7) .cse37 (<= ~a17~0 7) .cse13) .cse9 .cse38 .cse39) (or .cse27 .cse42 .cse3 .cse40 .cse9 .cse43 .cse10 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse26 .cse16 .cse17 (and .cse5 .cse21 .cse29 .cse22 .cse23 .cse24 .cse13) .cse9 .cse43 .cse20 .cse19 (not (<= |old(~a19~0)| 0)) .cse25) (or .cse44 .cse26 .cse11 (and .cse12 .cse5 .cse29 .cse30 .cse13) .cse28 .cse9 .cse14) (or .cse27 .cse3 .cse4 .cse28 .cse9 .cse43 .cse41) (or .cse44 .cse42 .cse3 .cse40 .cse9 .cse10 .cse14) (or (and .cse5 .cse6 .cse7 (= ~a28~0 8) .cse13) .cse44 .cse3 .cse40 .cse4 .cse9 .cse43 (not (= 8 |old(~a28~0)|))) (or .cse26 .cse16 .cse27 .cse33 (and (= ~a28~0 |old(~a28~0)|) .cse5 (<= 8 ~a17~0) .cse29 .cse22 .cse13) .cse4 .cse9)))) [2020-10-13 06:09:44,819 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,819 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,819 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,819 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-10-13 06:09:44,819 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-10-13 06:09:44,819 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-10-13 06:09:44,820 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-13 06:09:44,820 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-13 06:09:44,820 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-13 06:09:44,820 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-13 06:09:44,820 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-13 06:09:44,820 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-13 06:09:44,820 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-10-13 06:09:44,820 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-10-13 06:09:44,820 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-10-13 06:09:44,820 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-10-13 06:09:44,821 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,821 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,821 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,821 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,821 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,821 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,821 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-10-13 06:09:44,821 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-10-13 06:09:44,821 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-13 06:09:44,821 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-13 06:09:44,822 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-13 06:09:44,822 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-13 06:09:44,822 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-13 06:09:44,822 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-13 06:09:44,822 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-10-13 06:09:44,822 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-10-13 06:09:44,822 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-10-13 06:09:44,822 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:09:44,822 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-10-13 06:09:44,822 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-10-13 06:09:44,823 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-10-13 06:09:44,824 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-10-13 06:09:44,824 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-13 06:09:44,824 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-13 06:09:44,824 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-13 06:09:44,824 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-13 06:09:44,824 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-13 06:09:44,824 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-10-13 06:09:44,824 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:09:44,824 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-10-13 06:09:44,824 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-10-13 06:09:44,825 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-10-13 06:09:44,825 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:09:44,825 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-10-13 06:09:44,825 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-10-13 06:09:44,825 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-10-13 06:09:44,825 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:09:44,825 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (= ~a17~0 8) (= 7 ~a28~0)) [2020-10-13 06:09:44,825 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:09:44,825 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:09:44,826 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (= ~a21~0 1)) (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-13 06:09:44,826 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (= ~a19~0 1)) (.cse3 (= ~a11~0 1))) (let ((.cse0 (= ~a25~0 0)) (.cse17 (= ~a19~0 0)) (.cse16 (= 7 ~a28~0)) (.cse1 (= ~a17~0 8)) (.cse5 (not .cse3)) (.cse6 (<= 10 ~a28~0)) (.cse12 (<= 1 ~a25~0)) (.cse7 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 1)) (.cse9 (<= ~a17~0 8)) (.cse13 (<= ~a25~0 1)) (.cse10 (<= 1 ~a19~0)) (.cse11 (<= ~a28~0 10)) (.cse18 (= 7 ~a17~0)) (.cse15 (not .cse4)) (.cse14 (= ~a25~0 1)) (.cse2 (= ~a28~0 9))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 (= ~a11~0 ~a19~0)) (and .cse4 .cse1 .cse2 .cse5) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and (<= 1 ~a11~0) (<= 7 ~a17~0) .cse12 (<= 7 ~a28~0) (<= ~a11~0 1) .cse8 (<= ~a28~0 7) .cse13 (<= ~a17~0 7) .cse10) (and .cse4 .cse7 .cse14 .cse5 .cse9) (and .cse0 .cse1 .cse15 .cse5 (= ~a28~0 8)) (and .cse0 .cse1 .cse15 .cse16 .cse3) (and .cse17 .cse1 .cse16 .cse5 (not .cse14)) (and .cse17 .cse18 .cse3 (= ~a25~0 ~a19~0) (= ~a28~0 10)) (and (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse1 .cse16 (= ~a19~0 |old(~a19~0)|)) (and .cse4 .cse1 .cse14 .cse2) (and (<= ~a19~0 0) .cse6 .cse7 .cse14 .cse5 .cse9 .cse11) (not (= ~a21~0 1)) (and .cse6 .cse12 .cse7 .cse8 .cse9 .cse13 .cse10 .cse11) (not (= 7 |old(~a28~0)|)) (and .cse18 .cse15 .cse14 .cse2 .cse3) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:09:44,826 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:09:44,826 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-10-13 06:09:44,827 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (= ~a11~0 1)) (.cse11 (= ~a19~0 1))) (let ((.cse0 (= ~a25~0 0)) (.cse7 (<= 1 ~a25~0)) (.cse9 (<= ~a25~0 1)) (.cse16 (= ~a19~0 0)) (.cse15 (= 7 ~a28~0)) (.cse17 (= 7 ~a17~0)) (.cse5 (not .cse11)) (.cse13 (= ~a25~0 1)) (.cse1 (= ~a17~0 8)) (.cse4 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse2 (= ~a28~0 9)) (.cse6 (not .cse3)) (.cse20 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1))) (.cse18 (<= 10 ~a28~0)) (.cse12 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 1)) (.cse14 (<= ~a17~0 8)) (.cse10 (<= 1 ~a19~0)) (.cse19 (<= ~a28~0 10))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 (= ~a11~0 ~a19~0)) (and .cse0 .cse1 .cse4 .cse5 .cse6 (= ~a28~0 8)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and (<= 1 ~a11~0) (<= 7 ~a17~0) .cse7 (<= 7 ~a28~0) (<= ~a11~0 1) .cse8 (<= ~a28~0 7) .cse9 (<= ~a17~0 7) .cse10) (and .cse11 .cse12 .cse13 .cse6 .cse14) (and .cse0 .cse1 .cse5 .cse15 .cse3) (and .cse16 .cse17 .cse3 (= ~a25~0 ~a19~0) (= ~a28~0 10)) (and (= ~a11~0 |old(~a11~0)|) .cse11 .cse0 .cse1 .cse4 .cse15) (and (<= ~a19~0 0) .cse18 .cse12 .cse4 .cse13 .cse6 .cse14 .cse19) (and .cse11 .cse1 .cse13 .cse2) (not (= ~a21~0 1)) (and .cse18 .cse7 .cse12 .cse8 .cse14 .cse9 .cse10 .cse19) (and .cse20 .cse16 .cse1 .cse15 .cse6 (not .cse13)) (not (= 7 |old(~a28~0)|)) (and .cse17 .cse5 .cse13 .cse2 .cse3) (and .cse11 .cse1 .cse4 .cse2 .cse6) (and (or (<= ~a11~0 0) (< 1 ~a11~0)) .cse20 .cse18 .cse12 .cse8 .cse14 .cse10 .cse19) (not (= |old(~a11~0)| |old(~a25~0)|))))) [2020-10-13 06:09:44,827 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-10-13 06:09:44,827 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-10-13 06:09:44,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:09:44 BoogieIcfgContainer [2020-10-13 06:09:44,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:09:44,871 INFO L168 Benchmark]: Toolchain (without parser) took 88588.47 ms. Allocated memory was 140.5 MB in the beginning and 1.1 GB in the end (delta: 994.1 MB). Free memory was 102.1 MB in the beginning and 1.1 GB in the end (delta: -976.7 MB). Peak memory consumption was 984.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:44,871 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:09:44,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.23 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 172.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:44,872 INFO L168 Benchmark]: Boogie Preprocessor took 96.15 ms. Allocated memory is still 205.5 MB. Free memory was 172.3 MB in the beginning and 167.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:44,873 INFO L168 Benchmark]: RCFGBuilder took 1211.58 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 167.4 MB in the beginning and 182.7 MB in the end (delta: -15.3 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:44,874 INFO L168 Benchmark]: TraceAbstraction took 86548.26 ms. Allocated memory was 239.6 MB in the beginning and 1.1 GB in the end (delta: 895.0 MB). Free memory was 181.2 MB in the beginning and 1.1 GB in the end (delta: -897.6 MB). Peak memory consumption was 964.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:09:44,876 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.23 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 172.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.15 ms. Allocated memory is still 205.5 MB. Free memory was 172.3 MB in the beginning and 167.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1211.58 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 167.4 MB in the beginning and 182.7 MB in the end (delta: -15.3 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 86548.26 ms. Allocated memory was 239.6 MB in the beginning and 1.1 GB in the end (delta: 895.0 MB). Free memory was 181.2 MB in the beginning and 1.1 GB in the end (delta: -897.6 MB). Peak memory consumption was 964.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 559]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((((!(\old(a19) == 1) || ((((a25 == 0 && a17 == 8) && a28 == 9) && a11 == 1) && a11 == a19)) || (((a19 == 1 && a17 == 8) && a28 == 9) && !(a11 == 1))) || (((((((a11 <= 0 || 1 < a11) && 10 <= a28) && 8 <= a17) && a19 <= 1) && a17 <= 8) && 1 <= a19) && a28 <= 10)) || !(8 == \old(a17))) || !(0 == \old(a25))) || (((((((((1 <= a11 && 7 <= a17) && 1 <= a25) && 7 <= a28) && a11 <= 1) && a19 <= 1) && a28 <= 7) && a25 <= 1) && a17 <= 7) && 1 <= a19)) || ((((a19 == 1 && 8 <= a17) && a25 == 1) && !(a11 == 1)) && a17 <= 8)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && !(a11 == 1)) && a28 == 8)) || ((((a25 == 0 && a17 == 8) && !(a19 == 1)) && 7 == a28) && a11 == 1)) || ((((a19 == 0 && a17 == 8) && 7 == a28) && !(a11 == 1)) && !(a25 == 1))) || ((((a19 == 0 && 7 == a17) && a11 == 1) && a25 == a19) && a28 == 10)) || ((((a11 == \old(a11) && a25 == \old(a25)) && a17 == 8) && 7 == a28) && a19 == \old(a19))) || (((a19 == 1 && a17 == 8) && a25 == 1) && a28 == 9)) || ((((((a19 <= 0 && 10 <= a28) && 8 <= a17) && a25 == 1) && !(a11 == 1)) && a17 <= 8) && a28 <= 10)) || !(a21 == 1)) || (((((((10 <= a28 && 1 <= a25) && 8 <= a17) && a19 <= 1) && a17 <= 8) && a25 <= 1) && 1 <= a19) && a28 <= 10)) || !(7 == \old(a28))) || ((((7 == a17 && !(a19 == 1)) && a25 == 1) && a28 == 9) && a11 == 1)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 81.1s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 32.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 676 SDtfs, 6777 SDslu, 987 SDs, 0 SdLazy, 15128 SolverSat, 1270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 390 GetRequests, 155 SyntacticMatches, 9 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 17.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=867occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 124 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 109 PreInvPairs, 149 NumberOfFragments, 1760 HoareAnnotationTreeSize, 109 FomulaSimplifications, 16515593 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6817863 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 43.9s InterpolantComputationTime, 4011 NumberOfCodeBlocks, 4011 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3993 ConstructedInterpolants, 0 QuantifiedInterpolants, 10029847 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 2294/2328 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...