/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/Problem14_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:53:48,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:53:48,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:53:48,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:53:48,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:53:48,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:53:48,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:53:48,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:53:48,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:53:48,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:53:48,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:53:48,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:53:48,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:53:48,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:53:48,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:53:48,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:53:48,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:53:48,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:53:48,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:53:48,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:53:48,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:53:48,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:53:48,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:53:48,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:53:48,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:53:48,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:53:48,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:53:48,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:53:48,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:53:48,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:53:48,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:53:48,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:53:48,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:53:48,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:53:48,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:53:48,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:53:48,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:53:48,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:53:48,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:53:48,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:53:48,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:53:48,913 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 08:53:48,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:53:48,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:53:48,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:53:48,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:53:48,964 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:53:48,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:53:48,964 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:53:48,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:53:48,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:53:48,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:53:48,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:53:48,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:53:48,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:53:48,966 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:53:48,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:53:48,967 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:53:48,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:53:48,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:53:48,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:53:48,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:53:48,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:53:48,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:53:48,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:53:48,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:53:48,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:53:48,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:53:48,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:53:48,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:53:48,970 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:53:48,970 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 08:53:49,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:53:49,297 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:53:49,300 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:53:49,302 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:53:49,302 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:53:49,303 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label47.c [2020-10-13 08:53:49,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e36a3687/1b950bf6e57845feb2e8161b0eda92ae/FLAG5fdccd926 [2020-10-13 08:53:49,988 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:53:49,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label47.c [2020-10-13 08:53:50,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e36a3687/1b950bf6e57845feb2e8161b0eda92ae/FLAG5fdccd926 [2020-10-13 08:53:50,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e36a3687/1b950bf6e57845feb2e8161b0eda92ae [2020-10-13 08:53:50,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:53:50,212 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:53:50,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:53:50,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:53:50,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:53:50,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:53:50" (1/1) ... [2020-10-13 08:53:50,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:50, skipping insertion in model container [2020-10-13 08:53:50,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:53:50" (1/1) ... [2020-10-13 08:53:50,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:53:50,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:53:50,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:53:50,862 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:53:51,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:53:51,124 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:53:51,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51 WrapperNode [2020-10-13 08:53:51,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:53:51,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:53:51,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:53:51,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:53:51,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (1/1) ... [2020-10-13 08:53:51,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:53:51,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:53:51,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:53:51,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:53:51,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (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 08:53:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:53:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:53:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:53:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:53:51,385 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:53:51,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:53:51,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:53:51,386 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:53:51,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:53:51,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:53:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:53:52,997 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:53:52,998 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:53:53,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:53:53 BoogieIcfgContainer [2020-10-13 08:53:53,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:53:53,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:53:53,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:53:53,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:53:53,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:53:50" (1/3) ... [2020-10-13 08:53:53,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585344d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:53:53, skipping insertion in model container [2020-10-13 08:53:53,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:53:51" (2/3) ... [2020-10-13 08:53:53,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585344d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:53:53, skipping insertion in model container [2020-10-13 08:53:53,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:53:53" (3/3) ... [2020-10-13 08:53:53,015 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label47.c [2020-10-13 08:53:53,026 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:53:53,035 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:53:53,050 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:53:53,078 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:53:53,079 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:53:53,079 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:53:53,079 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:53:53,079 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:53:53,080 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:53:53,080 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:53:53,080 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:53:53,105 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:53:53,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-13 08:53:53,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:53:53,115 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] [2020-10-13 08:53:53,115 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:53:53,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:53:53,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1824869262, now seen corresponding path program 1 times [2020-10-13 08:53:53,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:53:53,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830352522] [2020-10-13 08:53:53,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:53:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:53,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:53,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:53,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-13 08:53:53,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:53,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-13 08:53:53,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:53:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:53:53,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 08:53:53,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:53:53,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:53:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:53,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:53,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:53,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:53:53,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:53,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:53:53,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:53:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:53,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:53:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:53:53,808 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 08:53:53,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830352522] [2020-10-13 08:53:53,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:53:53,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 08:53:53,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840353682] [2020-10-13 08:53:53,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:53:53,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:53:53,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:53:53,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:53:53,837 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-10-13 08:53:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:53:56,651 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2020-10-13 08:53:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:53:56,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-10-13 08:53:56,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:53:56,675 INFO L225 Difference]: With dead ends: 886 [2020-10-13 08:53:56,676 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:53:56,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:53:56,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:53:56,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:53:56,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:53:56,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 855 transitions. [2020-10-13 08:53:56,799 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 855 transitions. Word has length 39 [2020-10-13 08:53:56,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:53:56,801 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 855 transitions. [2020-10-13 08:53:56,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:53:56,801 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 855 transitions. [2020-10-13 08:53:56,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 08:53:56,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:53:56,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:53:56,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:53:56,811 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:53:56,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:53:56,812 INFO L82 PathProgramCache]: Analyzing trace with hash 643656041, now seen corresponding path program 1 times [2020-10-13 08:53:56,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:53:56,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671435532] [2020-10-13 08:53:56,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:53:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:56,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:57,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:57,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:57,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:57,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:53:57,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:53:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 926 [2020-10-13 08:53:57,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:57,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:53:57,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:53:57,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:53:57,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:53:57,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:53:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:57,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:57,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:57,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:53:57,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:53:57,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:53:57,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:53:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:57,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:57,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:57,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:53:57,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:57,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 08:53:57,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:57,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:53:57,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:57,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:53:57,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:53:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:53:58,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671435532] [2020-10-13 08:53:58,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:53:58,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:53:58,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787793433] [2020-10-13 08:53:58,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:53:58,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:53:58,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:53:58,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:53:58,095 INFO L87 Difference]: Start difference. First operand 560 states and 855 transitions. Second operand 5 states. [2020-10-13 08:53:59,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:53:59,260 INFO L93 Difference]: Finished difference Result 1151 states and 1753 transitions. [2020-10-13 08:53:59,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:53:59,263 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2020-10-13 08:53:59,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:53:59,268 INFO L225 Difference]: With dead ends: 1151 [2020-10-13 08:53:59,268 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:53:59,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:53:59,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:53:59,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:53:59,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:53:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 782 transitions. [2020-10-13 08:53:59,304 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 782 transitions. Word has length 108 [2020-10-13 08:53:59,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:53:59,304 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 782 transitions. [2020-10-13 08:53:59,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:53:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 782 transitions. [2020-10-13 08:53:59,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 08:53:59,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:53:59,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:53:59,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:53:59,308 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:53:59,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:53:59,308 INFO L82 PathProgramCache]: Analyzing trace with hash -81045839, now seen corresponding path program 1 times [2020-10-13 08:53:59,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:53:59,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755775899] [2020-10-13 08:53:59,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:53:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:59,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:59,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:00,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:00,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-13 08:54:00,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:00,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-10-13 08:54:00,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:54:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 08:54:00,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:00,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:00,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:00,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:00,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:00,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:00,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:54:00,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:00,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:00,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:00,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:00,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:00,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:00,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:00,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:00,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:00,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:00,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:54:00,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:54:00,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:54:00,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755775899] [2020-10-13 08:54:00,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:00,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:00,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120016347] [2020-10-13 08:54:00,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:00,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:00,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:00,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:00,592 INFO L87 Difference]: Start difference. First operand 560 states and 782 transitions. Second operand 5 states. [2020-10-13 08:54:02,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:02,045 INFO L93 Difference]: Finished difference Result 1670 states and 2362 transitions. [2020-10-13 08:54:02,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:02,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-13 08:54:02,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:02,059 INFO L225 Difference]: With dead ends: 1670 [2020-10-13 08:54:02,062 INFO L226 Difference]: Without dead ends: 1116 [2020-10-13 08:54:02,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:02,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-10-13 08:54:02,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 930. [2020-10-13 08:54:02,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:54:02,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1214 transitions. [2020-10-13 08:54:02,113 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1214 transitions. Word has length 112 [2020-10-13 08:54:02,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:02,115 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1214 transitions. [2020-10-13 08:54:02,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:02,115 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1214 transitions. [2020-10-13 08:54:02,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-13 08:54:02,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:02,129 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:54:02,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:54:02,130 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:02,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:02,130 INFO L82 PathProgramCache]: Analyzing trace with hash -269804730, now seen corresponding path program 1 times [2020-10-13 08:54:02,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:02,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401904634] [2020-10-13 08:54:02,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:02,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:02,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:02,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:02,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:07,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:07,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:07,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-13 08:54:07,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:54:07,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 08:54:07,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 08:54:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 08:54:07,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:07,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:07,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:07,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:07,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:07,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:07,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:54:07,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:07,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:07,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:07,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:07,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:54:07,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:07,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:07,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:07,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:07,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:07,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:54:07,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:07,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:07,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:07,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:07,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:07,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:07,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:07,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:07,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:54:07,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:07,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 08:54:07,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:07,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:07,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:07,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:54:07,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:07,546 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:07,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401904634] [2020-10-13 08:54:07,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:07,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:07,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411596320] [2020-10-13 08:54:07,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:07,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:07,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:07,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:07,553 INFO L87 Difference]: Start difference. First operand 930 states and 1214 transitions. Second operand 5 states. [2020-10-13 08:54:08,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:08,552 INFO L93 Difference]: Finished difference Result 1870 states and 2453 transitions. [2020-10-13 08:54:08,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:08,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 195 [2020-10-13 08:54:08,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:08,561 INFO L225 Difference]: With dead ends: 1870 [2020-10-13 08:54:08,562 INFO L226 Difference]: Without dead ends: 934 [2020-10-13 08:54:08,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-13 08:54:08,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2020-10-13 08:54:08,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:54:08,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1211 transitions. [2020-10-13 08:54:08,604 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1211 transitions. Word has length 195 [2020-10-13 08:54:08,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:08,606 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1211 transitions. [2020-10-13 08:54:08,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:08,606 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1211 transitions. [2020-10-13 08:54:08,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-13 08:54:08,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:08,614 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:54:08,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:54:08,615 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:08,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:08,615 INFO L82 PathProgramCache]: Analyzing trace with hash -188171843, now seen corresponding path program 1 times [2020-10-13 08:54:08,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:08,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748461874] [2020-10-13 08:54:08,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:08,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:08,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:10,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:11,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:12,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:13,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:13,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-13 08:54:13,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:54:13,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 08:54:13,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-10-13 08:54:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 08:54:13,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:13,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:13,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:13,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:13,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:13,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:13,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:54:13,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:13,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:13,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:13,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:13,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:13,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:13,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:13,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:13,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:13,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:13,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:54:13,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:13,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:13,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:13,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:13,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:13,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:13,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:13,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:13,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:54:13,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:13,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 08:54:13,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:54:13,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:14,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748461874] [2020-10-13 08:54:14,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:14,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:14,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216833540] [2020-10-13 08:54:14,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:14,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:14,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:14,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:14,127 INFO L87 Difference]: Start difference. First operand 930 states and 1211 transitions. Second operand 5 states. [2020-10-13 08:54:15,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:15,239 INFO L93 Difference]: Finished difference Result 1883 states and 2460 transitions. [2020-10-13 08:54:15,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:15,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 206 [2020-10-13 08:54:15,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:15,246 INFO L225 Difference]: With dead ends: 1883 [2020-10-13 08:54:15,247 INFO L226 Difference]: Without dead ends: 934 [2020-10-13 08:54:15,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:15,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-13 08:54:15,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2020-10-13 08:54:15,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:54:15,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1208 transitions. [2020-10-13 08:54:15,285 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1208 transitions. Word has length 206 [2020-10-13 08:54:15,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:15,286 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1208 transitions. [2020-10-13 08:54:15,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:15,286 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1208 transitions. [2020-10-13 08:54:15,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-13 08:54:15,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:15,290 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:54:15,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:54:15,290 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:15,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:15,291 INFO L82 PathProgramCache]: Analyzing trace with hash -839225754, now seen corresponding path program 1 times [2020-10-13 08:54:15,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:15,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765462692] [2020-10-13 08:54:15,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:15,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:15,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:15,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:16,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:17,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:19,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:20,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:20,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-13 08:54:20,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:54:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 08:54:20,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:20,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:20,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-10-13 08:54:20,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:54:20,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:20,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:20,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:20,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:20,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:20,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:20,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:54:20,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:20,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:20,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:20,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:20,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:20,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:20,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:20,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:20,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:20,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:54:20,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:20,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:20,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:20,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:20,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:20,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:54:20,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:20,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 08:54:20,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:20,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:20,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:20,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 08:54:20,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:20,681 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:20,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765462692] [2020-10-13 08:54:20,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:20,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:20,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867227564] [2020-10-13 08:54:20,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:20,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:20,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:20,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:20,685 INFO L87 Difference]: Start difference. First operand 930 states and 1208 transitions. Second operand 5 states. [2020-10-13 08:54:21,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:21,845 INFO L93 Difference]: Finished difference Result 1881 states and 2452 transitions. [2020-10-13 08:54:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:21,845 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2020-10-13 08:54:21,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:21,851 INFO L225 Difference]: With dead ends: 1881 [2020-10-13 08:54:21,851 INFO L226 Difference]: Without dead ends: 934 [2020-10-13 08:54:21,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:21,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-13 08:54:21,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2020-10-13 08:54:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:54:21,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1205 transitions. [2020-10-13 08:54:21,886 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1205 transitions. Word has length 211 [2020-10-13 08:54:21,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:21,887 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1205 transitions. [2020-10-13 08:54:21,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:21,887 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1205 transitions. [2020-10-13 08:54:21,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-13 08:54:21,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:21,891 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:21,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:54:21,892 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:21,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:21,892 INFO L82 PathProgramCache]: Analyzing trace with hash -157647759, now seen corresponding path program 1 times [2020-10-13 08:54:21,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:21,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86352822] [2020-10-13 08:54:21,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:21,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:21,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:22,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:23,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:23,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:25,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:25,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:25,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-13 08:54:25,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:54:25,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4040 [2020-10-13 08:54:25,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:25,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:25,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 08:54:25,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 08:54:25,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:26,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:26,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:26,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:26,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:26,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:26,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:54:26,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:26,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:26,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:26,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:26,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:26,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:26,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:26,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:54:26,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:26,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:26,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:26,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:26,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:26,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:26,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:26,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:26,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 08:54:26,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:26,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 08:54:26,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 08:54:26,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:26,276 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:26,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [86352822] [2020-10-13 08:54:26,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:26,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:26,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166357191] [2020-10-13 08:54:26,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:26,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:26,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:26,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:26,280 INFO L87 Difference]: Start difference. First operand 930 states and 1205 transitions. Second operand 5 states. [2020-10-13 08:54:27,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:27,234 INFO L93 Difference]: Finished difference Result 1884 states and 2449 transitions. [2020-10-13 08:54:27,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:27,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2020-10-13 08:54:27,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:27,241 INFO L225 Difference]: With dead ends: 1884 [2020-10-13 08:54:27,242 INFO L226 Difference]: Without dead ends: 934 [2020-10-13 08:54:27,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:27,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-13 08:54:27,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 930. [2020-10-13 08:54:27,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:54:27,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1202 transitions. [2020-10-13 08:54:27,275 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1202 transitions. Word has length 216 [2020-10-13 08:54:27,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:27,276 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1202 transitions. [2020-10-13 08:54:27,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:27,276 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1202 transitions. [2020-10-13 08:54:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-13 08:54:27,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:27,280 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:54:27,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:54:27,280 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:27,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1780074062, now seen corresponding path program 1 times [2020-10-13 08:54:27,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:27,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885190393] [2020-10-13 08:54:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:27,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:27,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:27,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:28,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:30,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:30,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-13 08:54:30,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:54:30,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3144 [2020-10-13 08:54:30,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:30,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:30,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-10-13 08:54:30,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 08:54:30,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:30,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:30,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:30,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:30,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:30,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:30,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:54:30,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:30,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:30,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:30,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:30,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:30,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:30,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:30,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:30,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:30,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:30,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:54:30,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:30,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:30,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:30,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:30,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:30,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:30,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:54:30,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:30,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:54:30,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:54:30,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:30,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885190393] [2020-10-13 08:54:30,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:30,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:30,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456411150] [2020-10-13 08:54:30,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:30,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:30,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:30,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:30,694 INFO L87 Difference]: Start difference. First operand 930 states and 1202 transitions. Second operand 5 states. [2020-10-13 08:54:31,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:31,993 INFO L93 Difference]: Finished difference Result 2410 states and 3207 transitions. [2020-10-13 08:54:31,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:31,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 231 [2020-10-13 08:54:31,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:32,007 INFO L225 Difference]: With dead ends: 2410 [2020-10-13 08:54:32,008 INFO L226 Difference]: Without dead ends: 1486 [2020-10-13 08:54:32,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:32,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2020-10-13 08:54:32,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1298. [2020-10-13 08:54:32,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:54:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1657 transitions. [2020-10-13 08:54:32,050 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1657 transitions. Word has length 231 [2020-10-13 08:54:32,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:32,050 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1657 transitions. [2020-10-13 08:54:32,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:32,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1657 transitions. [2020-10-13 08:54:32,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-13 08:54:32,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:32,056 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:54:32,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:54:32,056 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:32,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:32,057 INFO L82 PathProgramCache]: Analyzing trace with hash 810382477, now seen corresponding path program 1 times [2020-10-13 08:54:32,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:32,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419470358] [2020-10-13 08:54:32,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:32,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:32,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:32,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:33,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:33,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:35,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:35,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-13 08:54:35,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:54:35,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3148 [2020-10-13 08:54:35,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 219 [2020-10-13 08:54:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 08:54:35,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:35,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:35,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:35,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:35,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:35,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:54:35,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:35,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:35,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:35,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:35,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:35,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:35,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:35,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:54:35,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:35,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:35,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:35,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:35,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-13 08:54:35,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:35,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 08:54:35,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-13 08:54:35,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:35,487 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:35,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419470358] [2020-10-13 08:54:35,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:35,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:35,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668254672] [2020-10-13 08:54:35,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:35,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:35,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:35,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:35,490 INFO L87 Difference]: Start difference. First operand 1298 states and 1657 transitions. Second operand 5 states. [2020-10-13 08:54:36,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:36,445 INFO L93 Difference]: Finished difference Result 2613 states and 3348 transitions. [2020-10-13 08:54:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:36,446 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2020-10-13 08:54:36,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:36,453 INFO L225 Difference]: With dead ends: 2613 [2020-10-13 08:54:36,453 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 08:54:36,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:36,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 08:54:36,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1298. [2020-10-13 08:54:36,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:54:36,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1653 transitions. [2020-10-13 08:54:36,489 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1653 transitions. Word has length 246 [2020-10-13 08:54:36,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:36,490 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1653 transitions. [2020-10-13 08:54:36,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1653 transitions. [2020-10-13 08:54:36,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-13 08:54:36,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:36,494 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:54:36,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:54:36,495 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:36,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:36,495 INFO L82 PathProgramCache]: Analyzing trace with hash 2027834653, now seen corresponding path program 1 times [2020-10-13 08:54:36,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:36,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823677544] [2020-10-13 08:54:36,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:36,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:36,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:36,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:37,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:38,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:39,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:39,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-13 08:54:39,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:54:39,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3347 [2020-10-13 08:54:39,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 227 [2020-10-13 08:54:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 08:54:39,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:39,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:39,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:39,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:39,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:39,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:54:39,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:39,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:39,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:39,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:39,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:39,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:39,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:54:39,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:39,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:39,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:39,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:39,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:39,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:40,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:40,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:40,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:54:40,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:40,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 08:54:40,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 08:54:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:40,131 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:40,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823677544] [2020-10-13 08:54:40,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:40,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:40,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140324109] [2020-10-13 08:54:40,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:40,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:40,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:40,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:40,134 INFO L87 Difference]: Start difference. First operand 1298 states and 1653 transitions. Second operand 5 states. [2020-10-13 08:54:41,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:41,058 INFO L93 Difference]: Finished difference Result 2614 states and 3341 transitions. [2020-10-13 08:54:41,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:41,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 254 [2020-10-13 08:54:41,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:41,065 INFO L225 Difference]: With dead ends: 2614 [2020-10-13 08:54:41,066 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 08:54:41,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:41,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 08:54:41,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1298. [2020-10-13 08:54:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:54:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1649 transitions. [2020-10-13 08:54:41,103 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1649 transitions. Word has length 254 [2020-10-13 08:54:41,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:41,103 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1649 transitions. [2020-10-13 08:54:41,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:41,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1649 transitions. [2020-10-13 08:54:41,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-13 08:54:41,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:41,109 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:54:41,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:54:41,109 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:41,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:41,110 INFO L82 PathProgramCache]: Analyzing trace with hash 325730634, now seen corresponding path program 1 times [2020-10-13 08:54:41,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:41,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632822637] [2020-10-13 08:54:41,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:41,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:41,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:41,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:43,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:44,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:46,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:46,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-13 08:54:46,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:54:46,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 08:54:46,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:46,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:46,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-13 08:54:46,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:54:46,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:46,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:46,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:46,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:46,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:46,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:46,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:54:46,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:46,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:46,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:46,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:46,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:46,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:46,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:46,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:54:46,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:46,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:46,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:46,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:46,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:46,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 08:54:46,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-13 08:54:46,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:46,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:54:46,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:46,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632822637] [2020-10-13 08:54:46,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:46,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:46,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648680481] [2020-10-13 08:54:46,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:46,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:46,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:46,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:46,582 INFO L87 Difference]: Start difference. First operand 1298 states and 1649 transitions. Second operand 5 states. [2020-10-13 08:54:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:47,494 INFO L93 Difference]: Finished difference Result 2605 states and 3324 transitions. [2020-10-13 08:54:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:47,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-10-13 08:54:47,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:47,502 INFO L225 Difference]: With dead ends: 2605 [2020-10-13 08:54:47,502 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 08:54:47,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:47,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 08:54:47,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1298. [2020-10-13 08:54:47,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:54:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1645 transitions. [2020-10-13 08:54:47,548 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1645 transitions. Word has length 277 [2020-10-13 08:54:47,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:47,549 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1645 transitions. [2020-10-13 08:54:47,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:47,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1645 transitions. [2020-10-13 08:54:47,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-10-13 08:54:47,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:47,555 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:54:47,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:54:47,555 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:47,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:47,555 INFO L82 PathProgramCache]: Analyzing trace with hash 173782546, now seen corresponding path program 1 times [2020-10-13 08:54:47,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:47,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226480113] [2020-10-13 08:54:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:47,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:47,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:47,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:49,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:49,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:52,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:52,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-10-13 08:54:52,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:54:52,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 08:54:52,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 254 [2020-10-13 08:54:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 08:54:52,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:52,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:52,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:52,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:52,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:52,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:52,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:54:52,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:52,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:52,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:52,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:52,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:52,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:52,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:52,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:52,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:52,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:54:52,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:52,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:52,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:52,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:52,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:52,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 08:54:52,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:52,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-13 08:54:52,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-13 08:54:52,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:53,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226480113] [2020-10-13 08:54:53,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:53,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:53,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900158242] [2020-10-13 08:54:53,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:53,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:53,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:53,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:53,149 INFO L87 Difference]: Start difference. First operand 1298 states and 1645 transitions. Second operand 5 states. [2020-10-13 08:54:54,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:54,021 INFO L93 Difference]: Finished difference Result 2616 states and 3327 transitions. [2020-10-13 08:54:54,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:54,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-10-13 08:54:54,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:54,027 INFO L225 Difference]: With dead ends: 2616 [2020-10-13 08:54:54,028 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 08:54:54,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:54,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 08:54:54,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1298. [2020-10-13 08:54:54,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:54:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1641 transitions. [2020-10-13 08:54:54,059 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1641 transitions. Word has length 281 [2020-10-13 08:54:54,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:54,060 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1641 transitions. [2020-10-13 08:54:54,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:54,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1641 transitions. [2020-10-13 08:54:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-10-13 08:54:54,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:54,066 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:54,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:54:54,066 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:54,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:54,066 INFO L82 PathProgramCache]: Analyzing trace with hash 404678974, now seen corresponding path program 1 times [2020-10-13 08:54:54,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:54,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263004269] [2020-10-13 08:54:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:54,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:54,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:54,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:55,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:58,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:59,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:59,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-10-13 08:54:59,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:54:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 08:54:59,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-13 08:54:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 08:54:59,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:59,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:59,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:59,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:59,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:59,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:59,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:54:59,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:59,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:59,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:59,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:59,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:59,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:59,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:59,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:59,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:59,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:59,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:54:59,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:59,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:59,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:59,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:59,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:59,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:59,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:59,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 08:54:59,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:59,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 08:54:59,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-13 08:54:59,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:59,372 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:54:59,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263004269] [2020-10-13 08:54:59,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:59,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:59,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457375556] [2020-10-13 08:54:59,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:59,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:59,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:59,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:59,374 INFO L87 Difference]: Start difference. First operand 1298 states and 1641 transitions. Second operand 5 states. [2020-10-13 08:55:00,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:00,339 INFO L93 Difference]: Finished difference Result 2618 states and 3320 transitions. [2020-10-13 08:55:00,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:00,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 287 [2020-10-13 08:55:00,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:00,344 INFO L225 Difference]: With dead ends: 2618 [2020-10-13 08:55:00,345 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 08:55:00,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 08:55:00,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1298. [2020-10-13 08:55:00,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:55:00,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1636 transitions. [2020-10-13 08:55:00,377 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1636 transitions. Word has length 287 [2020-10-13 08:55:00,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:00,378 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1636 transitions. [2020-10-13 08:55:00,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1636 transitions. [2020-10-13 08:55:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-13 08:55:00,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:00,385 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:00,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:55:00,385 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:00,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:00,385 INFO L82 PathProgramCache]: Analyzing trace with hash -481717999, now seen corresponding path program 1 times [2020-10-13 08:55:00,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:00,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278168213] [2020-10-13 08:55:00,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:00,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:00,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:00,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:01,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:02,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:03,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:03,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:05,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-13 08:55:05,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 08:55:05,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-13 08:55:05,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:05,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 279 [2020-10-13 08:55:05,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 08:55:05,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:05,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:05,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:05,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:05,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:05,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:55:05,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:05,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:05,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:05,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:05,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:55:05,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:05,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 08:55:05,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:05,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:05,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:55:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:05,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:05,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:55:05,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:05,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:55:05,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:05,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:05,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-13 08:55:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:05,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:05,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 08:55:05,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:05,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:55:05,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:05,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 08:55:05,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-13 08:55:05,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278168213] [2020-10-13 08:55:05,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:05,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:05,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618281305] [2020-10-13 08:55:05,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:05,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:05,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:05,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:05,738 INFO L87 Difference]: Start difference. First operand 1298 states and 1636 transitions. Second operand 5 states. [2020-10-13 08:55:06,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:06,698 INFO L93 Difference]: Finished difference Result 2625 states and 3316 transitions. [2020-10-13 08:55:06,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:06,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-10-13 08:55:06,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:06,704 INFO L225 Difference]: With dead ends: 2625 [2020-10-13 08:55:06,704 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 08:55:06,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:06,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 08:55:06,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1298. [2020-10-13 08:55:06,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1298 states. [2020-10-13 08:55:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1634 transitions. [2020-10-13 08:55:06,739 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1634 transitions. Word has length 304 [2020-10-13 08:55:06,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:06,739 INFO L479 AbstractCegarLoop]: Abstraction has 1298 states and 1634 transitions. [2020-10-13 08:55:06,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:06,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1634 transitions. [2020-10-13 08:55:06,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-13 08:55:06,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:06,743 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:06,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:55:06,744 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:06,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:06,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1549656957, now seen corresponding path program 1 times [2020-10-13 08:55:06,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:06,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994071130] [2020-10-13 08:55:06,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:06,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:06,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:06,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:07,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:10,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:11,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:11,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-13 08:55:11,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:55:11,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 08:55:11,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:11,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:11,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 285 [2020-10-13 08:55:11,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 08:55:11,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:11,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:11,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:11,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:11,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:11,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:11,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:55:11,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:11,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:11,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:11,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:11,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:11,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:11,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:55:11,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:11,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:55:11,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:11,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:55:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:11,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:11,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:11,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:55:11,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:11,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:55:11,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:11,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:11,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-13 08:55:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:11,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:11,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:11,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:55:11,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:11,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:55:11,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:55:11,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:12,061 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-10-13 08:55:12,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994071130] [2020-10-13 08:55:12,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:12,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:55:12,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818242723] [2020-10-13 08:55:12,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:55:12,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:12,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:55:12,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:12,063 INFO L87 Difference]: Start difference. First operand 1298 states and 1634 transitions. Second operand 6 states. [2020-10-13 08:55:14,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:14,040 INFO L93 Difference]: Finished difference Result 3698 states and 4863 transitions. [2020-10-13 08:55:14,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:55:14,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 310 [2020-10-13 08:55:14,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:14,052 INFO L225 Difference]: With dead ends: 3698 [2020-10-13 08:55:14,052 INFO L226 Difference]: Without dead ends: 2406 [2020-10-13 08:55:14,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:55:14,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2020-10-13 08:55:14,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2036. [2020-10-13 08:55:14,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2036 states. [2020-10-13 08:55:14,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 2564 transitions. [2020-10-13 08:55:14,101 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 2564 transitions. Word has length 310 [2020-10-13 08:55:14,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:14,102 INFO L479 AbstractCegarLoop]: Abstraction has 2036 states and 2564 transitions. [2020-10-13 08:55:14,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:55:14,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 2564 transitions. [2020-10-13 08:55:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-13 08:55:14,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:14,107 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 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 08:55:14,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:55:14,108 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:14,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:14,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1586561559, now seen corresponding path program 1 times [2020-10-13 08:55:14,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:14,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700316940] [2020-10-13 08:55:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:14,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:14,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:14,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:14,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:16,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:19,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:19,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-13 08:55:19,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:55:19,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 08:55:19,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 291 [2020-10-13 08:55:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 08:55:19,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:19,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:19,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:19,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:19,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:19,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:19,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:19,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:19,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:19,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:19,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:19,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:19,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:19,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:55:19,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:19,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:55:19,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:19,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:19,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:55:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:19,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:19,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:19,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:55:19,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:19,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:55:19,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:19,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:19,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:19,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-13 08:55:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:19,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:19,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:19,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 08:55:19,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:55:19,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:55:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2020-10-13 08:55:19,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700316940] [2020-10-13 08:55:19,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:19,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:19,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47082298] [2020-10-13 08:55:19,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:19,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:19,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:19,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:19,473 INFO L87 Difference]: Start difference. First operand 2036 states and 2564 transitions. Second operand 5 states. [2020-10-13 08:55:20,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:20,395 INFO L93 Difference]: Finished difference Result 4085 states and 5163 transitions. [2020-10-13 08:55:20,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:20,396 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 316 [2020-10-13 08:55:20,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:20,404 INFO L225 Difference]: With dead ends: 4085 [2020-10-13 08:55:20,404 INFO L226 Difference]: Without dead ends: 2040 [2020-10-13 08:55:20,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:20,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2020-10-13 08:55:20,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2036. [2020-10-13 08:55:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2036 states. [2020-10-13 08:55:20,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 2559 transitions. [2020-10-13 08:55:20,455 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 2559 transitions. Word has length 316 [2020-10-13 08:55:20,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:20,456 INFO L479 AbstractCegarLoop]: Abstraction has 2036 states and 2559 transitions. [2020-10-13 08:55:20,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:20,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 2559 transitions. [2020-10-13 08:55:20,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-13 08:55:20,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:20,462 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:20,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:55:20,463 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:20,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:20,463 INFO L82 PathProgramCache]: Analyzing trace with hash -617032594, now seen corresponding path program 1 times [2020-10-13 08:55:20,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:20,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283773011] [2020-10-13 08:55:20,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:20,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:20,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:20,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:20,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:24,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:24,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:25,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:25,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-10-13 08:55:25,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:55:25,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 08:55:25,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 310 [2020-10-13 08:55:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 08:55:25,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:25,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:25,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:25,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:25,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:25,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:25,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:55:25,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:25,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:25,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:25,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:25,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:25,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:55:25,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:25,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 08:55:25,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:25,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:25,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:25,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:25,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:25,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:55:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:25,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:25,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:25,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:55:25,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:25,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:55:25,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:25,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:25,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:25,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:25,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:25,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-13 08:55:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:25,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:25,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:25,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 08:55:25,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:25,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 08:55:25,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:25,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:55:25,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-10-13 08:55:25,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283773011] [2020-10-13 08:55:25,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:25,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:25,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674314935] [2020-10-13 08:55:25,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:25,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:25,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:25,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:25,842 INFO L87 Difference]: Start difference. First operand 2036 states and 2559 transitions. Second operand 5 states. [2020-10-13 08:55:26,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:26,763 INFO L93 Difference]: Finished difference Result 4102 states and 5169 transitions. [2020-10-13 08:55:26,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:26,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 335 [2020-10-13 08:55:26,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:26,771 INFO L225 Difference]: With dead ends: 4102 [2020-10-13 08:55:26,771 INFO L226 Difference]: Without dead ends: 2040 [2020-10-13 08:55:26,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:26,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2020-10-13 08:55:26,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2036. [2020-10-13 08:55:26,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2036 states. [2020-10-13 08:55:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 2553 transitions. [2020-10-13 08:55:26,818 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 2553 transitions. Word has length 335 [2020-10-13 08:55:26,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:26,818 INFO L479 AbstractCegarLoop]: Abstraction has 2036 states and 2553 transitions. [2020-10-13 08:55:26,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 2553 transitions. [2020-10-13 08:55:26,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-10-13 08:55:26,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:26,824 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:26,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:55:26,825 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:26,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:26,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1871367106, now seen corresponding path program 1 times [2020-10-13 08:55:26,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:26,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532168423] [2020-10-13 08:55:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:26,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:26,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:27,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:27,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:31,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:31,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 389 [2020-10-13 08:55:31,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:31,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 08:55:31,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:31,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:31,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-13 08:55:31,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 08:55:31,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:31,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:31,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:31,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:31,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:31,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:31,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:31,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:31,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:31,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:31,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:31,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:31,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:31,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:31,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:31,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:55:31,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:31,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:55:31,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:31,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:31,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:55:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:31,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:31,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:31,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:55:31,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:31,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:55:31,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:31,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:31,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:32,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-13 08:55:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:32,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:32,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:32,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:55:32,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:32,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 08:55:32,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:32,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:32,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:32,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-13 08:55:32,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-13 08:55:32,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532168423] [2020-10-13 08:55:32,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:32,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:32,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427838112] [2020-10-13 08:55:32,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:32,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:32,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:32,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:32,186 INFO L87 Difference]: Start difference. First operand 2036 states and 2553 transitions. Second operand 5 states. [2020-10-13 08:55:33,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:33,523 INFO L93 Difference]: Finished difference Result 4620 states and 5809 transitions. [2020-10-13 08:55:33,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:33,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 375 [2020-10-13 08:55:33,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:33,524 INFO L225 Difference]: With dead ends: 4620 [2020-10-13 08:55:33,524 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 08:55:33,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:33,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 08:55:33,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 08:55:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 08:55:33,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 08:55:33,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 375 [2020-10-13 08:55:33,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:33,532 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 08:55:33,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:33,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 08:55:33,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 08:55:33,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:55:33,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 08:55:33,975 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 54 [2020-10-13 08:55:34,102 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 54 [2020-10-13 08:55:34,692 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 69 [2020-10-13 08:55:34,830 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-10-13 08:55:34,958 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-10-13 08:55:34,966 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:55:34,969 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-10-13 08:55:34,969 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:55:34,969 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-10-13 08:55:34,969 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-10-13 08:55:34,969 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,969 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,969 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,969 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-10-13 08:55:34,970 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-13 08:55:34,970 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-13 08:55:34,970 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-13 08:55:34,970 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-10-13 08:55:34,970 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-10-13 08:55:34,970 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-10-13 08:55:34,970 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-10-13 08:55:34,970 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,971 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,971 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,971 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-10-13 08:55:34,971 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-10-13 08:55:34,971 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-13 08:55:34,971 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-13 08:55:34,971 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-13 08:55:34,971 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-10-13 08:55:34,971 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-10-13 08:55:34,972 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-10-13 08:55:34,972 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,973 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,973 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,973 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-10-13 08:55:34,973 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-13 08:55:34,973 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-13 08:55:34,974 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-13 08:55:34,974 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-10-13 08:55:34,974 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-10-13 08:55:34,975 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-10-13 08:55:34,975 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-10-13 08:55:34,975 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-10-13 08:55:34,976 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,978 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,978 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,979 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-10-13 08:55:34,979 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-13 08:55:34,979 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-13 08:55:34,979 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-13 08:55:34,979 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-10-13 08:55:34,979 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-10-13 08:55:34,979 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-10-13 08:55:34,979 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,979 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,980 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,980 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-10-13 08:55:34,980 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-13 08:55:34,980 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-13 08:55:34,980 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-13 08:55:34,980 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-10-13 08:55:34,980 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-10-13 08:55:34,980 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-10-13 08:55:34,980 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-10-13 08:55:34,981 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-10-13 08:55:34,981 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,981 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,981 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,981 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,981 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-10-13 08:55:34,981 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-13 08:55:34,981 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-13 08:55:34,982 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-13 08:55:34,982 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-10-13 08:55:34,982 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-10-13 08:55:34,982 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-10-13 08:55:34,982 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-10-13 08:55:34,982 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,982 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,982 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,982 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-13 08:55:34,983 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-13 08:55:34,983 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-13 08:55:34,983 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-10-13 08:55:34,983 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-10-13 08:55:34,983 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-10-13 08:55:34,983 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-10-13 08:55:34,983 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-10-13 08:55:34,983 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,983 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,983 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,984 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-10-13 08:55:34,984 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-10-13 08:55:34,984 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-13 08:55:34,984 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-13 08:55:34,984 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-13 08:55:34,984 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-10-13 08:55:34,985 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse5 (= 9 |old(~a21~0)|)) (.cse8 (= ~a24~0 1)) (.cse9 (= ~a21~0 9)) (.cse10 (= ~a12~0 |old(~a12~0)|)) (.cse11 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) .cse10 .cse11)) (.cse3 (and (= 7 ~a15~0) .cse8 .cse9 .cse10)) (.cse4 (not (= 7 |old(~a15~0)|))) (.cse6 (not (= 6 |old(~a15~0)|))) (.cse1 (not (= |old(~a24~0)| 1))) (.cse2 (not .cse5)) (.cse7 (and .cse8 .cse9 .cse10 .cse11))) (and (or .cse0 (not (<= 8 |old(~a15~0)|))) (or .cse0 (not (= 5 |old(~a15~0)|))) (or (not (<= 528306 |old(~a12~0)|)) .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5) (or .cse1 .cse3 (not (<= 12 |old(~a12~0)|)) .cse2 (not (<= |old(~a12~0)| 80)) .cse4) (or .cse6 .cse1 (not (<= 81 |old(~a12~0)|)) .cse2 .cse7) (or .cse6 .cse1 (not (<= (+ |old(~a12~0)| 45) 0)) .cse2 .cse7) (or .cse6 .cse1 .cse2 (not (<= |old(~a12~0)| 11)) (not (<= 0 (+ |old(~a12~0)| 42))) .cse7)))) [2020-10-13 08:55:34,985 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-10-13 08:55:34,985 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-10-13 08:55:34,985 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,985 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,985 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,985 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-13 08:55:34,985 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-13 08:55:34,986 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-13 08:55:34,986 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-10-13 08:55:34,987 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-10-13 08:55:34,987 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-10-13 08:55:34,987 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-10-13 08:55:34,987 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-10-13 08:55:34,988 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,988 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,988 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,988 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-10-13 08:55:34,988 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-10-13 08:55:34,988 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-13 08:55:34,988 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-13 08:55:34,988 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-13 08:55:34,988 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-10-13 08:55:34,989 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-10-13 08:55:34,990 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-10-13 08:55:34,990 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,990 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,990 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,991 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-10-13 08:55:34,991 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-13 08:55:34,991 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-13 08:55:34,991 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-13 08:55:34,991 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-10-13 08:55:34,991 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-10-13 08:55:34,991 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-10-13 08:55:34,991 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-10-13 08:55:34,991 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,992 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,992 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,992 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-10-13 08:55:34,992 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-13 08:55:34,992 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-13 08:55:34,992 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-13 08:55:34,992 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-10-13 08:55:34,992 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-10-13 08:55:34,992 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-10-13 08:55:34,993 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-10-13 08:55:34,993 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,993 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,993 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-10-13 08:55:34,993 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-13 08:55:34,993 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-13 08:55:34,993 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-10-13 08:55:34,993 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-10-13 08:55:34,993 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-10-13 08:55:34,994 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-10-13 08:55:34,994 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-10-13 08:55:34,994 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2020-10-13 08:55:34,994 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,994 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,994 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-10-13 08:55:34,994 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-13 08:55:34,995 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-13 08:55:34,995 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-10-13 08:55:34,995 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-10-13 08:55:34,995 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-10-13 08:55:34,995 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,995 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,995 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-10-13 08:55:34,995 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-10-13 08:55:34,995 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-13 08:55:34,996 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-13 08:55:34,996 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-10-13 08:55:34,996 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-10-13 08:55:34,996 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-10-13 08:55:34,996 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-10-13 08:55:34,996 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,996 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,996 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-10-13 08:55:34,996 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-10-13 08:55:34,997 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-13 08:55:34,997 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-13 08:55:34,997 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-10-13 08:55:34,997 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-10-13 08:55:34,997 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-10-13 08:55:34,997 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,997 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,997 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,997 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-10-13 08:55:34,997 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-10-13 08:55:34,998 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-13 08:55:34,998 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-13 08:55:34,998 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-10-13 08:55:34,998 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-10-13 08:55:34,998 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,998 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,998 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-13 08:55:34,998 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,998 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-10-13 08:55:34,998 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-10-13 08:55:34,999 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-10-13 08:55:34,999 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-13 08:55:34,999 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-13 08:55:34,999 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-13 08:55:34,999 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-10-13 08:55:34,999 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-10-13 08:55:34,999 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-10-13 08:55:34,999 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-10-13 08:55:34,999 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:34,999 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,000 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,000 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-10-13 08:55:35,000 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-13 08:55:35,000 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-13 08:55:35,000 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-13 08:55:35,000 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-10-13 08:55:35,000 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-10-13 08:55:35,000 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-10-13 08:55:35,000 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-10-13 08:55:35,000 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,001 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,001 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,001 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-10-13 08:55:35,001 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-10-13 08:55:35,001 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-13 08:55:35,001 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-13 08:55:35,001 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-13 08:55:35,001 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-10-13 08:55:35,001 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-10-13 08:55:35,001 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-10-13 08:55:35,002 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-10-13 08:55:35,003 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-10-13 08:55:35,003 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,003 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,003 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:55:35,003 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-10-13 08:55:35,003 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-13 08:55:35,003 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-13 08:55:35,003 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-13 08:55:35,003 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-10-13 08:55:35,003 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:55:35,004 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a21~0 7) (= ~a15~0 8)) [2020-10-13 08:55:35,005 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 08:55:35,005 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:55:35,006 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (<= |old(~a21~0)| 7)) (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 8) (= ~a12~0 |old(~a12~0)|))) [2020-10-13 08:55:35,008 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:55:35,008 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse1 (= ~a15~0 6)) (.cse2 (= 7 ~a15~0)) (.cse0 (= ~a24~0 1))) (or (= 5 ~a15~0) (and (<= 0 (+ ~a12~0 42)) (<= ~a12~0 11) .cse0 .cse1) (<= 8 ~a15~0) (not (= 8 |old(~a15~0)|)) (and (<= (+ ~a12~0 45) 0) .cse0 .cse1) (not (= ~a21~0 9)) (not (<= |old(~a21~0)| 7)) (and .cse2 (<= 528306 ~a12~0) .cse0) (and (<= 81 ~a12~0) .cse0 .cse1) (and .cse2 (<= 12 ~a12~0) .cse0 (<= ~a12~0 80)))) [2020-10-13 08:55:35,008 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-10-13 08:55:35,008 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-10-13 08:55:35,008 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse1 (= ~a15~0 6)) (.cse2 (= 7 ~a15~0)) (.cse0 (= ~a24~0 1))) (or (= 5 ~a15~0) (and (<= 0 (+ ~a12~0 42)) (<= ~a12~0 11) .cse0 .cse1) (<= 8 ~a15~0) (not (= 8 |old(~a15~0)|)) (and (<= (+ ~a12~0 45) 0) .cse0 .cse1) (not (= ~a21~0 9)) (not (<= |old(~a21~0)| 7)) (and .cse2 (<= 528306 ~a12~0) .cse0) (and (<= 81 ~a12~0) .cse0 .cse1) (and .cse2 (<= 12 ~a12~0) .cse0 (<= ~a12~0 80)))) [2020-10-13 08:55:35,009 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:55:35,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:55:35 BoogieIcfgContainer [2020-10-13 08:55:35,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 08:55:35,053 INFO L168 Benchmark]: Toolchain (without parser) took 104838.45 ms. Allocated memory was 146.3 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 99.9 MB in the beginning and 235.2 MB in the end (delta: -135.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-13 08:55:35,063 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-10-13 08:55:35,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 911.80 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 99.7 MB in the beginning and 167.1 MB in the end (delta: -67.3 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2020-10-13 08:55:35,064 INFO L168 Benchmark]: Boogie Preprocessor took 165.94 ms. Allocated memory is still 205.0 MB. Free memory was 167.1 MB in the beginning and 161.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-10-13 08:55:35,065 INFO L168 Benchmark]: RCFGBuilder took 1713.35 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 161.4 MB in the beginning and 156.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2020-10-13 08:55:35,071 INFO L168 Benchmark]: TraceAbstraction took 102042.23 ms. Allocated memory was 238.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 154.6 MB in the beginning and 235.2 MB in the end (delta: -80.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-10-13 08:55:35,078 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 911.80 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 99.7 MB in the beginning and 167.1 MB in the end (delta: -67.3 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 165.94 ms. Allocated memory is still 205.0 MB. Free memory was 167.1 MB in the beginning and 161.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1713.35 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 161.4 MB in the beginning and 156.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 102042.23 ms. Allocated memory was 238.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 154.6 MB in the beginning and 235.2 MB in the end (delta: -80.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: 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: 880]: Loop Invariant Derived loop invariant: ((((((((5 == a15 || (((0 <= a12 + 42 && a12 <= 11) && a24 == 1) && a15 == 6)) || 8 <= a15) || !(8 == \old(a15))) || ((a12 + 45 <= 0 && a24 == 1) && a15 == 6)) || !(a21 == 9)) || !(\old(a21) <= 7)) || ((7 == a15 && 528306 <= a12) && a24 == 1)) || ((81 <= a12 && a24 == 1) && a15 == 6)) || (((7 == a15 && 12 <= a12) && a24 == 1) && a12 <= 80) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 100.4s, OverallIterations: 18, TraceHistogramMax: 4, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 448 SDtfs, 5624 SDslu, 383 SDs, 0 SdLazy, 14322 SolverSat, 834 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 150 SyntacticMatches, 12 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2036occurred 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: 0.6s AutomataMinimizationTime, 18 MinimizatonAttempts, 800 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 148 PreInvPairs, 204 NumberOfFragments, 435 HoareAnnotationTreeSize, 148 FomulaSimplifications, 18131848 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1501 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 75.7s InterpolantComputationTime, 4303 NumberOfCodeBlocks, 4303 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4285 ConstructedInterpolants, 0 QuantifiedInterpolants, 2490784 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 1 PerfectInterpolantSequences, 3088/3125 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...