/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/Problem11_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 20:58:58,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 20:58:58,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 20:58:58,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 20:58:58,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 20:58:58,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 20:58:58,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 20:58:58,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 20:58:58,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 20:58:58,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 20:58:58,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 20:58:58,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 20:58:58,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 20:58:58,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 20:58:58,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 20:58:58,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 20:58:58,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 20:58:58,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 20:58:58,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 20:58:58,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 20:58:58,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 20:58:58,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 20:58:58,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 20:58:58,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 20:58:58,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 20:58:58,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 20:58:58,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 20:58:58,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 20:58:58,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 20:58:58,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 20:58:58,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 20:58:58,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 20:58:58,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 20:58:58,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 20:58:58,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 20:58:58,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 20:58:58,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 20:58:58,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 20:58:58,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 20:58:58,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 20:58:58,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 20:58:58,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 20:58:58,883 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 20:58:58,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 20:58:58,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 20:58:58,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 20:58:58,886 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 20:58:58,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 20:58:58,887 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 20:58:58,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 20:58:58,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 20:58:58,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 20:58:58,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 20:58:58,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 20:58:58,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 20:58:58,890 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 20:58:58,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 20:58:58,890 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 20:58:58,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 20:58:58,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 20:58:58,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 20:58:58,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 20:58:58,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 20:58:58,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 20:58:58,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 20:58:58,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 20:58:58,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 20:58:58,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 20:58:58,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 20:58:58,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 20:58:58,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 20:58:58,893 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 20:58:59,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 20:58:59,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 20:58:59,244 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 20:58:59,247 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 20:58:59,247 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 20:58:59,248 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label30.c [2020-10-14 20:58:59,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a65b97686/a85343bd14e84914b3e352e5c9afe68b/FLAG590b564bd [2020-10-14 20:58:59,972 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 20:58:59,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label30.c [2020-10-14 20:58:59,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a65b97686/a85343bd14e84914b3e352e5c9afe68b/FLAG590b564bd [2020-10-14 20:59:00,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a65b97686/a85343bd14e84914b3e352e5c9afe68b [2020-10-14 20:59:00,157 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 20:59:00,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 20:59:00,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 20:59:00,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 20:59:00,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 20:59:00,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:59:00" (1/1) ... [2020-10-14 20:59:00,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d00e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:00, skipping insertion in model container [2020-10-14 20:59:00,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:59:00" (1/1) ... [2020-10-14 20:59:00,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 20:59:00,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 20:59:00,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:59:00,976 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 20:59:01,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:59:01,335 INFO L208 MainTranslator]: Completed translation [2020-10-14 20:59:01,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:01 WrapperNode [2020-10-14 20:59:01,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 20:59:01,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 20:59:01,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 20:59:01,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 20:59:01,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:01" (1/1) ... [2020-10-14 20:59:01,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:01" (1/1) ... [2020-10-14 20:59:01,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:01" (1/1) ... [2020-10-14 20:59:01,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:01" (1/1) ... [2020-10-14 20:59:01,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:01" (1/1) ... [2020-10-14 20:59:01,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:01" (1/1) ... [2020-10-14 20:59:01,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:01" (1/1) ... [2020-10-14 20:59:01,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 20:59:01,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 20:59:01,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 20:59:01,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 20:59:01,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 20:59:01,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 20:59:01,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 20:59:01,617 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 20:59:01,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 20:59:01,618 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 20:59:01,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 20:59:01,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 20:59:01,618 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 20:59:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 20:59:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 20:59:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 20:59:03,321 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 20:59:03,322 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 20:59:03,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:59:03 BoogieIcfgContainer [2020-10-14 20:59:03,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 20:59:03,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 20:59:03,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 20:59:03,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 20:59:03,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:59:00" (1/3) ... [2020-10-14 20:59:03,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ec90c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:59:03, skipping insertion in model container [2020-10-14 20:59:03,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:59:01" (2/3) ... [2020-10-14 20:59:03,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ec90c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:59:03, skipping insertion in model container [2020-10-14 20:59:03,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:59:03" (3/3) ... [2020-10-14 20:59:03,340 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label30.c [2020-10-14 20:59:03,352 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 20:59:03,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 20:59:03,378 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 20:59:03,409 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 20:59:03,409 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 20:59:03,409 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 20:59:03,409 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 20:59:03,410 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 20:59:03,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 20:59:03,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 20:59:03,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 20:59:03,439 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-10-14 20:59:03,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-14 20:59:03,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:03,452 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] [2020-10-14 20:59:03,452 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:03,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:03,460 INFO L82 PathProgramCache]: Analyzing trace with hash 506629546, now seen corresponding path program 1 times [2020-10-14 20:59:03,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:03,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342358532] [2020-10-14 20:59:03,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:03,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:04,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:04,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 20:59:04,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:04,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-14 20:59:04,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:04,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:04,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:59:04,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:59:04,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 20:59:04,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 20:59:04,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:04,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:04,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:04,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:04,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:04,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 20:59:04,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:04,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:04,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:04,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:04,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:59:04,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:04,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:59:04,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342358532] [2020-10-14 20:59:04,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:59:04,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 20:59:04,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516024898] [2020-10-14 20:59:04,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 20:59:04,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:04,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 20:59:04,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 20:59:04,251 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 4 states. [2020-10-14 20:59:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:06,777 INFO L93 Difference]: Finished difference Result 788 states and 1382 transitions. [2020-10-14 20:59:06,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:59:06,779 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-10-14 20:59:06,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:06,797 INFO L225 Difference]: With dead ends: 788 [2020-10-14 20:59:06,797 INFO L226 Difference]: Without dead ends: 431 [2020-10-14 20:59:06,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:59:06,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-10-14 20:59:06,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 425. [2020-10-14 20:59:06,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-10-14 20:59:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 612 transitions. [2020-10-14 20:59:06,908 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 612 transitions. Word has length 35 [2020-10-14 20:59:06,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:06,909 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 612 transitions. [2020-10-14 20:59:06,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 20:59:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 612 transitions. [2020-10-14 20:59:06,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-14 20:59:06,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:06,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:06,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 20:59:06,915 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:06,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:06,916 INFO L82 PathProgramCache]: Analyzing trace with hash -295507094, now seen corresponding path program 1 times [2020-10-14 20:59:06,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:06,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845451401] [2020-10-14 20:59:06,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:07,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:07,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:07,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:08,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:08,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 20:59:08,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:59:08,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1482 [2020-10-14 20:59:08,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:08,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:08,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:59:08,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:59:08,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 20:59:08,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:08,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:08,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:08,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:08,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:08,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:08,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 20:59:08,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:08,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:08,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:59:08,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:08,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:08,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:08,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:08,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 20:59:08,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:08,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 20:59:08,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:08,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:08,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:08,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 20:59:08,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 20:59:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:59:08,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845451401] [2020-10-14 20:59:08,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:59:08,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 20:59:08,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161258127] [2020-10-14 20:59:08,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:08,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:08,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:08,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:08,957 INFO L87 Difference]: Start difference. First operand 425 states and 612 transitions. Second operand 7 states. [2020-10-14 20:59:11,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:11,508 INFO L93 Difference]: Finished difference Result 1264 states and 1838 transitions. [2020-10-14 20:59:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:59:11,510 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-10-14 20:59:11,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:11,521 INFO L225 Difference]: With dead ends: 1264 [2020-10-14 20:59:11,522 INFO L226 Difference]: Without dead ends: 845 [2020-10-14 20:59:11,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 20:59:11,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2020-10-14 20:59:11,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 821. [2020-10-14 20:59:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-10-14 20:59:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1103 transitions. [2020-10-14 20:59:11,575 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1103 transitions. Word has length 107 [2020-10-14 20:59:11,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:11,576 INFO L479 AbstractCegarLoop]: Abstraction has 821 states and 1103 transitions. [2020-10-14 20:59:11,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1103 transitions. [2020-10-14 20:59:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 20:59:11,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:11,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:11,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 20:59:11,580 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:11,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:11,585 INFO L82 PathProgramCache]: Analyzing trace with hash -755657990, now seen corresponding path program 1 times [2020-10-14 20:59:11,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:11,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132622491] [2020-10-14 20:59:11,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:11,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:11,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:12,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:12,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:13,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:13,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 20:59:13,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:59:13,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1610 [2020-10-14 20:59:13,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:13,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 20:59:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:59:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 20:59:13,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:13,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:13,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:13,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:13,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:13,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:13,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 20:59:13,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:13,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:59:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:13,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:13,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:13,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:13,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:13,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 20:59:13,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:13,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 20:59:13,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:13,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:13,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:13,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:13,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 20:59:13,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:13,580 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 20:59:13,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132622491] [2020-10-14 20:59:13,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:13,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 20:59:13,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986517232] [2020-10-14 20:59:13,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:13,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:13,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:13,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:13,582 INFO L87 Difference]: Start difference. First operand 821 states and 1103 transitions. Second operand 7 states. [2020-10-14 20:59:16,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:16,543 INFO L93 Difference]: Finished difference Result 2477 states and 3363 transitions. [2020-10-14 20:59:16,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:59:16,544 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2020-10-14 20:59:16,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:16,560 INFO L225 Difference]: With dead ends: 2477 [2020-10-14 20:59:16,560 INFO L226 Difference]: Without dead ends: 1662 [2020-10-14 20:59:16,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:59:16,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2020-10-14 20:59:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1621. [2020-10-14 20:59:16,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1621 states. [2020-10-14 20:59:16,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2035 transitions. [2020-10-14 20:59:16,656 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2035 transitions. Word has length 115 [2020-10-14 20:59:16,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:16,657 INFO L479 AbstractCegarLoop]: Abstraction has 1621 states and 2035 transitions. [2020-10-14 20:59:16,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:16,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2035 transitions. [2020-10-14 20:59:16,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-14 20:59:16,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:16,674 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:16,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 20:59:16,675 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:16,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:16,675 INFO L82 PathProgramCache]: Analyzing trace with hash -469391870, now seen corresponding path program 1 times [2020-10-14 20:59:16,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:16,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103155565] [2020-10-14 20:59:16,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:16,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:17,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:17,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 20:59:17,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:17,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-10-14 20:59:17,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:17,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 20:59:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 20:59:17,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 20:59:17,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:17,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:17,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:17,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:17,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:17,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:59:17,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:17,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:17,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:17,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:17,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:17,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:17,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 20:59:17,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:17,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 20:59:17,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:17,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:17,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:17,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:17,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 20:59:17,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:17,549 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:59:17,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103155565] [2020-10-14 20:59:17,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:17,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:59:17,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140870205] [2020-10-14 20:59:17,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:59:17,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:17,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:59:17,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:59:17,555 INFO L87 Difference]: Start difference. First operand 1621 states and 2035 transitions. Second operand 5 states. [2020-10-14 20:59:19,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:19,865 INFO L93 Difference]: Finished difference Result 3477 states and 4600 transitions. [2020-10-14 20:59:19,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:59:19,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-10-14 20:59:19,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:19,879 INFO L225 Difference]: With dead ends: 3477 [2020-10-14 20:59:19,879 INFO L226 Difference]: Without dead ends: 2240 [2020-10-14 20:59:19,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:59:19,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2020-10-14 20:59:19,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2219. [2020-10-14 20:59:19,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2020-10-14 20:59:19,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2863 transitions. [2020-10-14 20:59:19,951 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2863 transitions. Word has length 166 [2020-10-14 20:59:19,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:19,952 INFO L479 AbstractCegarLoop]: Abstraction has 2219 states and 2863 transitions. [2020-10-14 20:59:19,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:59:19,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2863 transitions. [2020-10-14 20:59:19,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-14 20:59:19,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:19,957 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:59:19,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 20:59:19,957 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:19,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:19,958 INFO L82 PathProgramCache]: Analyzing trace with hash 910608272, now seen corresponding path program 1 times [2020-10-14 20:59:19,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:19,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543334301] [2020-10-14 20:59:19,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:20,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:20,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:20,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:21,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:21,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-14 20:59:21,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:59:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1512 [2020-10-14 20:59:21,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:21,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 20:59:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 20:59:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:21,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:21,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:21,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:21,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:21,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:21,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 20:59:21,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:21,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:21,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:21,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:21,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:21,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:21,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:21,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:21,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:21,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 20:59:21,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:21,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 20:59:21,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:21,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 20:59:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 20:59:21,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 20:59:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:21,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:22,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:22,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 20:59:22,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:22,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 20:59:22,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:22,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:22,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 20:59:22,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:59:22,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543334301] [2020-10-14 20:59:22,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:22,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:22,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138471089] [2020-10-14 20:59:22,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:22,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:22,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:22,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:22,199 INFO L87 Difference]: Start difference. First operand 2219 states and 2863 transitions. Second operand 7 states. [2020-10-14 20:59:24,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:24,485 INFO L93 Difference]: Finished difference Result 4679 states and 6199 transitions. [2020-10-14 20:59:24,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:59:24,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 223 [2020-10-14 20:59:24,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:24,505 INFO L225 Difference]: With dead ends: 4679 [2020-10-14 20:59:24,505 INFO L226 Difference]: Without dead ends: 2844 [2020-10-14 20:59:24,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:59:24,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2020-10-14 20:59:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2826. [2020-10-14 20:59:24,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2826 states. [2020-10-14 20:59:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3654 transitions. [2020-10-14 20:59:24,587 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3654 transitions. Word has length 223 [2020-10-14 20:59:24,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:24,588 INFO L479 AbstractCegarLoop]: Abstraction has 2826 states and 3654 transitions. [2020-10-14 20:59:24,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:24,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3654 transitions. [2020-10-14 20:59:24,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-14 20:59:24,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:24,592 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:59:24,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 20:59:24,592 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:24,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:24,593 INFO L82 PathProgramCache]: Analyzing trace with hash -876635981, now seen corresponding path program 1 times [2020-10-14 20:59:24,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:24,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120124069] [2020-10-14 20:59:24,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:24,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:24,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:25,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:26,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:26,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-14 20:59:26,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:59:26,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2183 [2020-10-14 20:59:26,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:26,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:26,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 20:59:26,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:59:26,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-10-14 20:59:26,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:26,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:26,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:26,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:26,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:26,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:26,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 20:59:26,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:26,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:26,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:59:26,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:26,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:27,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:27,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:27,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 20:59:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-14 20:59:27,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:27,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:27,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:27,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:27,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 20:59:27,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:27,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 20:59:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:27,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:27,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:27,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:59:27,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:27,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-14 20:59:27,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:27,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:27,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 20:59:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:27,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:59:27,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 121 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 20:59:28,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120124069] [2020-10-14 20:59:28,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:28,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 20:59:28,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249591050] [2020-10-14 20:59:28,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 20:59:28,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:28,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 20:59:28,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:59:28,075 INFO L87 Difference]: Start difference. First operand 2826 states and 3654 transitions. Second operand 8 states. [2020-10-14 20:59:31,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:31,165 INFO L93 Difference]: Finished difference Result 6679 states and 9066 transitions. [2020-10-14 20:59:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:59:31,166 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 224 [2020-10-14 20:59:31,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:31,188 INFO L225 Difference]: With dead ends: 6679 [2020-10-14 20:59:31,188 INFO L226 Difference]: Without dead ends: 4224 [2020-10-14 20:59:31,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-10-14 20:59:31,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4224 states. [2020-10-14 20:59:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4224 to 4018. [2020-10-14 20:59:31,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4018 states. [2020-10-14 20:59:31,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5114 transitions. [2020-10-14 20:59:31,303 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5114 transitions. Word has length 224 [2020-10-14 20:59:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:31,304 INFO L479 AbstractCegarLoop]: Abstraction has 4018 states and 5114 transitions. [2020-10-14 20:59:31,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 20:59:31,304 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5114 transitions. [2020-10-14 20:59:31,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-14 20:59:31,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:31,308 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:59:31,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 20:59:31,309 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:31,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:31,309 INFO L82 PathProgramCache]: Analyzing trace with hash -591406092, now seen corresponding path program 1 times [2020-10-14 20:59:31,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:31,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743113758] [2020-10-14 20:59:31,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:31,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:31,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:32,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:32,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:32,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-14 20:59:32,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:59:32,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1287 [2020-10-14 20:59:32,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:32,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 20:59:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 20:59:32,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:32,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:32,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:32,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:32,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:32,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:32,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:59:32,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:32,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:32,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:32,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:32,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:32,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:32,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:32,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:32,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:32,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 20:59:32,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:32,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 20:59:32,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:32,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:32,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 20:59:32,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:32,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 20:59:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:33,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:33,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:33,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 20:59:33,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:33,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 20:59:33,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:33,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:33,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:33,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 20:59:33,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:59:33,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743113758] [2020-10-14 20:59:33,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:33,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:33,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397859207] [2020-10-14 20:59:33,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:33,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:33,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:33,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:33,250 INFO L87 Difference]: Start difference. First operand 4018 states and 5114 transitions. Second operand 7 states. [2020-10-14 20:59:35,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:35,939 INFO L93 Difference]: Finished difference Result 9252 states and 11848 transitions. [2020-10-14 20:59:35,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 20:59:35,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2020-10-14 20:59:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:35,966 INFO L225 Difference]: With dead ends: 9252 [2020-10-14 20:59:35,966 INFO L226 Difference]: Without dead ends: 5618 [2020-10-14 20:59:35,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 20:59:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2020-10-14 20:59:36,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 5574. [2020-10-14 20:59:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5574 states. [2020-10-14 20:59:36,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5574 states to 5574 states and 6948 transitions. [2020-10-14 20:59:36,145 INFO L78 Accepts]: Start accepts. Automaton has 5574 states and 6948 transitions. Word has length 225 [2020-10-14 20:59:36,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:36,146 INFO L479 AbstractCegarLoop]: Abstraction has 5574 states and 6948 transitions. [2020-10-14 20:59:36,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:36,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5574 states and 6948 transitions. [2020-10-14 20:59:36,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-14 20:59:36,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:36,216 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:36,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 20:59:36,217 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:36,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:36,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1216067096, now seen corresponding path program 1 times [2020-10-14 20:59:36,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:36,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568111079] [2020-10-14 20:59:36,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:36,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:36,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:36,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:36,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-14 20:59:36,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:36,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-14 20:59:36,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:36,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:36,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:36,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 20:59:36,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 20:59:36,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:36,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:36,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:36,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:36,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:36,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:36,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:59:36,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:36,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:36,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:36,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:36,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:36,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:36,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 20:59:36,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:36,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 20:59:36,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:36,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:36,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 20:59:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:37,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:37,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:37,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 20:59:37,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:37,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 20:59:37,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:37,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 20:59:37,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-14 20:59:37,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568111079] [2020-10-14 20:59:37,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:37,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:59:37,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62421088] [2020-10-14 20:59:37,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:59:37,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:37,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:59:37,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:59:37,125 INFO L87 Difference]: Start difference. First operand 5574 states and 6948 transitions. Second operand 5 states. [2020-10-14 20:59:40,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:40,061 INFO L93 Difference]: Finished difference Result 11565 states and 14801 transitions. [2020-10-14 20:59:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:59:40,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-10-14 20:59:40,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:40,092 INFO L225 Difference]: With dead ends: 11565 [2020-10-14 20:59:40,092 INFO L226 Difference]: Without dead ends: 6375 [2020-10-14 20:59:40,105 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 [2020-10-14 20:59:40,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6375 states. [2020-10-14 20:59:40,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6375 to 5965. [2020-10-14 20:59:40,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5965 states. [2020-10-14 20:59:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 7705 transitions. [2020-10-14 20:59:40,254 INFO L78 Accepts]: Start accepts. Automaton has 5965 states and 7705 transitions. Word has length 235 [2020-10-14 20:59:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:40,255 INFO L479 AbstractCegarLoop]: Abstraction has 5965 states and 7705 transitions. [2020-10-14 20:59:40,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:59:40,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5965 states and 7705 transitions. [2020-10-14 20:59:40,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-14 20:59:40,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:40,261 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:40,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 20:59:40,262 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:40,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:40,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1642174841, now seen corresponding path program 1 times [2020-10-14 20:59:40,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:40,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446099740] [2020-10-14 20:59:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:40,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:40,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:41,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:42,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:42,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-14 20:59:42,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:59:42,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1691 [2020-10-14 20:59:42,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:42,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:42,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:42,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 20:59:42,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 20:59:42,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:42,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:42,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:42,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:42,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:42,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:42,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:59:42,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:42,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:42,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:42,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:42,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:42,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:42,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:42,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:42,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:42,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 20:59:42,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:42,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 20:59:42,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:42,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:42,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:42,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:42,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 20:59:42,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:42,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 20:59:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:42,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:42,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:42,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 20:59:42,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:42,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 20:59:42,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:42,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:42,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:42,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:42,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 20:59:42,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:59:42,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446099740] [2020-10-14 20:59:42,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:42,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:42,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210607465] [2020-10-14 20:59:42,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:42,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:42,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:42,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:42,556 INFO L87 Difference]: Start difference. First operand 5965 states and 7705 transitions. Second operand 7 states. [2020-10-14 20:59:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:45,195 INFO L93 Difference]: Finished difference Result 13749 states and 18949 transitions. [2020-10-14 20:59:45,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:59:45,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-10-14 20:59:45,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:45,241 INFO L225 Difference]: With dead ends: 13749 [2020-10-14 20:59:45,241 INFO L226 Difference]: Without dead ends: 8168 [2020-10-14 20:59:45,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:59:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8168 states. [2020-10-14 20:59:45,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8168 to 8084. [2020-10-14 20:59:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8084 states. [2020-10-14 20:59:45,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8084 states to 8084 states and 10358 transitions. [2020-10-14 20:59:45,659 INFO L78 Accepts]: Start accepts. Automaton has 8084 states and 10358 transitions. Word has length 235 [2020-10-14 20:59:45,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:45,660 INFO L479 AbstractCegarLoop]: Abstraction has 8084 states and 10358 transitions. [2020-10-14 20:59:45,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:45,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8084 states and 10358 transitions. [2020-10-14 20:59:45,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-14 20:59:45,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:45,667 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:45,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 20:59:45,667 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:45,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:45,668 INFO L82 PathProgramCache]: Analyzing trace with hash -186287423, now seen corresponding path program 1 times [2020-10-14 20:59:45,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:45,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652756794] [2020-10-14 20:59:45,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:45,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:45,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:47,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:47,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 20:59:47,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:47,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1291 [2020-10-14 20:59:47,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:47,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 20:59:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 20:59:47,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:47,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:47,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:47,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:47,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:47,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:47,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:59:47,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:47,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:47,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:47,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:47,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:47,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:47,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 20:59:47,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:47,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 20:59:47,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:47,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:47,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:47,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:47,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 20:59:47,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:47,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 20:59:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:47,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:47,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:47,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:59:47,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:47,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 20:59:47,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:47,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:47,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:59:47,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:47,639 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:59:47,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652756794] [2020-10-14 20:59:47,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:47,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:47,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633206464] [2020-10-14 20:59:47,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:47,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:47,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:47,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:47,642 INFO L87 Difference]: Start difference. First operand 8084 states and 10358 transitions. Second operand 7 states. [2020-10-14 20:59:50,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:50,450 INFO L93 Difference]: Finished difference Result 15091 states and 19871 transitions. [2020-10-14 20:59:50,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 20:59:50,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-10-14 20:59:50,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:50,483 INFO L225 Difference]: With dead ends: 15091 [2020-10-14 20:59:50,483 INFO L226 Difference]: Without dead ends: 9133 [2020-10-14 20:59:50,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 20:59:50,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9133 states. [2020-10-14 20:59:50,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9133 to 9062. [2020-10-14 20:59:50,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9062 states. [2020-10-14 20:59:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9062 states to 9062 states and 11575 transitions. [2020-10-14 20:59:50,750 INFO L78 Accepts]: Start accepts. Automaton has 9062 states and 11575 transitions. Word has length 239 [2020-10-14 20:59:50,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:50,751 INFO L479 AbstractCegarLoop]: Abstraction has 9062 states and 11575 transitions. [2020-10-14 20:59:50,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:50,751 INFO L276 IsEmpty]: Start isEmpty. Operand 9062 states and 11575 transitions. [2020-10-14 20:59:50,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-14 20:59:50,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:50,760 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:50,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 20:59:50,761 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:50,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:50,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1023389104, now seen corresponding path program 1 times [2020-10-14 20:59:50,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:50,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515737961] [2020-10-14 20:59:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:50,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:50,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:52,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:52,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-14 20:59:52,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:52,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1350 [2020-10-14 20:59:52,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:52,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:52,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 20:59:52,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:59:52,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 261 [2020-10-14 20:59:52,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:52,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:52,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:52,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:52,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:52,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:52,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 20:59:52,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:52,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:52,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:59:52,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:52,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:52,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:52,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:52,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 20:59:52,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:52,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 20:59:52,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:52,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:52,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:52,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:52,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 20:59:52,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:52,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 20:59:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:52,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:52,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:52,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 20:59:52,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:52,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 20:59:52,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:52,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 20:59:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:52,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 20:59:52,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-14 20:59:53,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515737961] [2020-10-14 20:59:53,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:53,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:53,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394180055] [2020-10-14 20:59:53,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 20:59:53,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:53,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 20:59:53,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:59:53,073 INFO L87 Difference]: Start difference. First operand 9062 states and 11575 transitions. Second operand 8 states. [2020-10-14 20:59:56,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:56,737 INFO L93 Difference]: Finished difference Result 19759 states and 26437 transitions. [2020-10-14 20:59:56,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 20:59:56,738 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 255 [2020-10-14 20:59:56,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:56,782 INFO L225 Difference]: With dead ends: 19759 [2020-10-14 20:59:56,782 INFO L226 Difference]: Without dead ends: 12249 [2020-10-14 20:59:56,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-14 20:59:56,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12249 states. [2020-10-14 20:59:57,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12249 to 11979. [2020-10-14 20:59:57,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11979 states. [2020-10-14 20:59:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11979 states to 11979 states and 15145 transitions. [2020-10-14 20:59:57,069 INFO L78 Accepts]: Start accepts. Automaton has 11979 states and 15145 transitions. Word has length 255 [2020-10-14 20:59:57,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:57,070 INFO L479 AbstractCegarLoop]: Abstraction has 11979 states and 15145 transitions. [2020-10-14 20:59:57,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 20:59:57,070 INFO L276 IsEmpty]: Start isEmpty. Operand 11979 states and 15145 transitions. [2020-10-14 20:59:57,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-14 20:59:57,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:57,076 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:57,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 20:59:57,077 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:57,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:57,077 INFO L82 PathProgramCache]: Analyzing trace with hash 880594599, now seen corresponding path program 1 times [2020-10-14 20:59:57,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:57,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425297479] [2020-10-14 20:59:57,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:57,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:57,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:58,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:58,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-14 20:59:58,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1529 [2020-10-14 20:59:58,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:58,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 20:59:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 20:59:58,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:58,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:58,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:58,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:58,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:58,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:58,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:59:58,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:58,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:58,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:58,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:58,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:58,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:58,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:58,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:58,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:58,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 20:59:58,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:58,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 20:59:58,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:58,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 20:59:58,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:58,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 20:59:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:58,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:58,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:58,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 20:59:58,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:58,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 20:59:58,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:58,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:58,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:58,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:58,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 20:59:58,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:59:59,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425297479] [2020-10-14 20:59:59,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:59,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:59,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516884606] [2020-10-14 20:59:59,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:59,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:59,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:59,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:59,087 INFO L87 Difference]: Start difference. First operand 11979 states and 15145 transitions. Second operand 7 states. [2020-10-14 21:00:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:02,869 INFO L93 Difference]: Finished difference Result 26856 states and 33838 transitions. [2020-10-14 21:00:02,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:00:02,870 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 270 [2020-10-14 21:00:02,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:02,923 INFO L225 Difference]: With dead ends: 26856 [2020-10-14 21:00:02,923 INFO L226 Difference]: Without dead ends: 15261 [2020-10-14 21:00:02,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:00:02,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15261 states. [2020-10-14 21:00:03,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15261 to 14653. [2020-10-14 21:00:03,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14653 states. [2020-10-14 21:00:03,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14653 states to 14653 states and 18119 transitions. [2020-10-14 21:00:03,262 INFO L78 Accepts]: Start accepts. Automaton has 14653 states and 18119 transitions. Word has length 270 [2020-10-14 21:00:03,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:03,262 INFO L479 AbstractCegarLoop]: Abstraction has 14653 states and 18119 transitions. [2020-10-14 21:00:03,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:00:03,263 INFO L276 IsEmpty]: Start isEmpty. Operand 14653 states and 18119 transitions. [2020-10-14 21:00:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-14 21:00:03,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:03,274 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:03,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 21:00:03,275 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:03,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:03,275 INFO L82 PathProgramCache]: Analyzing trace with hash -516177515, now seen corresponding path program 1 times [2020-10-14 21:00:03,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:03,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778857316] [2020-10-14 21:00:03,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:03,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:03,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:04,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:04,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-14 21:00:04,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:00:04,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 699 [2020-10-14 21:00:04,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:04,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:04,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:04,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-10-14 21:00:04,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 21:00:04,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:04,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:04,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:04,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:04,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:04,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:04,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:00:04,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:04,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:04,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:04,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:04,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:04,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:04,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:04,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:04,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:04,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 21:00:04,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:04,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:00:04,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:04,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:04,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:04,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:04,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:04,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:04,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-14 21:00:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:04,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:04,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:04,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 21:00:04,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:04,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 21:00:04,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:04,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 21:00:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 21:00:04,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778857316] [2020-10-14 21:00:04,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:04,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:00:04,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106534123] [2020-10-14 21:00:04,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:00:04,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:04,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:00:04,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:00:04,305 INFO L87 Difference]: Start difference. First operand 14653 states and 18119 transitions. Second operand 5 states. [2020-10-14 21:00:06,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:06,680 INFO L93 Difference]: Finished difference Result 29529 states and 36499 transitions. [2020-10-14 21:00:06,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:00:06,681 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2020-10-14 21:00:06,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:06,715 INFO L225 Difference]: With dead ends: 29529 [2020-10-14 21:00:06,716 INFO L226 Difference]: Without dead ends: 15260 [2020-10-14 21:00:06,742 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 [2020-10-14 21:00:06,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15260 states. [2020-10-14 21:00:06,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15260 to 14845. [2020-10-14 21:00:06,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14845 states. [2020-10-14 21:00:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14845 states to 14845 states and 17903 transitions. [2020-10-14 21:00:06,974 INFO L78 Accepts]: Start accepts. Automaton has 14845 states and 17903 transitions. Word has length 278 [2020-10-14 21:00:06,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:06,975 INFO L479 AbstractCegarLoop]: Abstraction has 14845 states and 17903 transitions. [2020-10-14 21:00:06,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:00:06,976 INFO L276 IsEmpty]: Start isEmpty. Operand 14845 states and 17903 transitions. [2020-10-14 21:00:06,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-10-14 21:00:06,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:06,986 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:06,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 21:00:06,986 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:06,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:06,986 INFO L82 PathProgramCache]: Analyzing trace with hash 229056500, now seen corresponding path program 1 times [2020-10-14 21:00:06,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:06,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249992881] [2020-10-14 21:00:06,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:07,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:07,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:07,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:07,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-14 21:00:07,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:00:07,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 736 [2020-10-14 21:00:07,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:07,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:07,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:07,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 21:00:07,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 21:00:07,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:07,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:07,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:07,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:07,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:07,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:07,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:07,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:07,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:07,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:07,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:07,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:07,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:07,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:07,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:00:07,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:07,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 21:00:07,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:07,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:07,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:07,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:07,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:07,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:08,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:00:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:08,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:08,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:08,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:00:08,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:08,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 21:00:08,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:08,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:08,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:00:08,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:08,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:00:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:08,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:08,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:08,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:00:08,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:08,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 21:00:08,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:08,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:08,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:08,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:08,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:00:08,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 261 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-14 21:00:08,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249992881] [2020-10-14 21:00:08,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:08,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:00:08,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269775858] [2020-10-14 21:00:08,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:00:08,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:08,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:00:08,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:00:08,601 INFO L87 Difference]: Start difference. First operand 14845 states and 17903 transitions. Second operand 8 states. [2020-10-14 21:00:11,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:11,230 INFO L93 Difference]: Finished difference Result 26241 states and 31839 transitions. [2020-10-14 21:00:11,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:00:11,231 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 329 [2020-10-14 21:00:11,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:11,260 INFO L225 Difference]: With dead ends: 26241 [2020-10-14 21:00:11,260 INFO L226 Difference]: Without dead ends: 14877 [2020-10-14 21:00:11,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:00:11,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14877 states. [2020-10-14 21:00:11,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14877 to 14841. [2020-10-14 21:00:11,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14841 states. [2020-10-14 21:00:11,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14841 states to 14841 states and 17785 transitions. [2020-10-14 21:00:11,524 INFO L78 Accepts]: Start accepts. Automaton has 14841 states and 17785 transitions. Word has length 329 [2020-10-14 21:00:11,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:11,524 INFO L479 AbstractCegarLoop]: Abstraction has 14841 states and 17785 transitions. [2020-10-14 21:00:11,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:00:11,525 INFO L276 IsEmpty]: Start isEmpty. Operand 14841 states and 17785 transitions. [2020-10-14 21:00:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-14 21:00:11,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:11,533 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:00:11,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 21:00:11,534 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:11,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:11,534 INFO L82 PathProgramCache]: Analyzing trace with hash -2055989757, now seen corresponding path program 1 times [2020-10-14 21:00:11,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:11,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730626343] [2020-10-14 21:00:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:11,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:12,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:12,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-10-14 21:00:12,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:12,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-10-14 21:00:12,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:12,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:12,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:12,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 317 [2020-10-14 21:00:12,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 21:00:12,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:12,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:12,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:12,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:12,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:12,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:12,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:12,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:12,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:12,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:12,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:12,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:12,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:12,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:00:12,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:12,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:00:12,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:12,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:12,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:12,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:00:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:12,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:12,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:12,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 21:00:12,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:12,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-14 21:00:12,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:12,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:12,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:12,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:12,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-14 21:00:12,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-14 21:00:12,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730626343] [2020-10-14 21:00:12,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:12,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:00:12,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188684911] [2020-10-14 21:00:12,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:00:12,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:12,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:00:12,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:00:12,737 INFO L87 Difference]: Start difference. First operand 14841 states and 17785 transitions. Second operand 5 states. [2020-10-14 21:00:15,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:15,138 INFO L93 Difference]: Finished difference Result 27567 states and 33660 transitions. [2020-10-14 21:00:15,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:00:15,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 341 [2020-10-14 21:00:15,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:15,171 INFO L225 Difference]: With dead ends: 27567 [2020-10-14 21:00:15,172 INFO L226 Difference]: Without dead ends: 15813 [2020-10-14 21:00:15,188 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 [2020-10-14 21:00:15,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15813 states. [2020-10-14 21:00:15,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15813 to 15404. [2020-10-14 21:00:15,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15404 states. [2020-10-14 21:00:15,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15404 states to 15404 states and 18524 transitions. [2020-10-14 21:00:15,410 INFO L78 Accepts]: Start accepts. Automaton has 15404 states and 18524 transitions. Word has length 341 [2020-10-14 21:00:15,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:15,411 INFO L479 AbstractCegarLoop]: Abstraction has 15404 states and 18524 transitions. [2020-10-14 21:00:15,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:00:15,411 INFO L276 IsEmpty]: Start isEmpty. Operand 15404 states and 18524 transitions. [2020-10-14 21:00:15,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-14 21:00:15,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:15,421 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:15,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 21:00:15,421 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:15,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:15,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1823276641, now seen corresponding path program 1 times [2020-10-14 21:00:15,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:15,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579796200] [2020-10-14 21:00:15,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:15,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:15,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:15,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-14 21:00:15,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-10-14 21:00:15,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:15,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:15,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:15,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 329 [2020-10-14 21:00:15,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 21:00:15,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:16,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:16,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:16,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:16,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:16,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:16,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:16,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:16,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:16,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:16,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:16,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:16,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:16,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:16,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:16,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:00:16,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 21:00:16,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:16,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:16,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:16,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:00:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:16,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:16,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:16,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:00:16,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:16,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:00:16,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:16,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:16,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:16,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:16,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:16,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:16,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 21:00:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:16,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:16,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:16,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 21:00:16,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:16,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 21:00:16,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:16,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:16,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:16,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 21:00:16,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:16,598 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2020-10-14 21:00:16,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579796200] [2020-10-14 21:00:16,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:16,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:00:16,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628752313] [2020-10-14 21:00:16,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:00:16,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:16,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:00:16,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:00:16,604 INFO L87 Difference]: Start difference. First operand 15404 states and 18524 transitions. Second operand 5 states. [2020-10-14 21:00:19,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:19,289 INFO L93 Difference]: Finished difference Result 30453 states and 36708 transitions. [2020-10-14 21:00:19,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:00:19,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 350 [2020-10-14 21:00:19,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:19,331 INFO L225 Difference]: With dead ends: 30453 [2020-10-14 21:00:19,331 INFO L226 Difference]: Without dead ends: 18326 [2020-10-14 21:00:19,348 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 [2020-10-14 21:00:19,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18326 states. [2020-10-14 21:00:19,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18326 to 18098. [2020-10-14 21:00:19,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18098 states. [2020-10-14 21:00:19,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18098 states to 18098 states and 21599 transitions. [2020-10-14 21:00:19,639 INFO L78 Accepts]: Start accepts. Automaton has 18098 states and 21599 transitions. Word has length 350 [2020-10-14 21:00:19,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:19,640 INFO L479 AbstractCegarLoop]: Abstraction has 18098 states and 21599 transitions. [2020-10-14 21:00:19,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:00:19,640 INFO L276 IsEmpty]: Start isEmpty. Operand 18098 states and 21599 transitions. [2020-10-14 21:00:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-14 21:00:19,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:19,654 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 21:00:19,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 21:00:19,656 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:19,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:19,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1769289827, now seen corresponding path program 1 times [2020-10-14 21:00:19,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:19,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299743191] [2020-10-14 21:00:19,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:19,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:20,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:20,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:20,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 370 [2020-10-14 21:00:20,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:00:20,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1213 [2020-10-14 21:00:20,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:20,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:20,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:20,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 21:00:20,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 21:00:20,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:21,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:21,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:21,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:21,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:21,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:21,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:21,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:21,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:21,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:21,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:21,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:21,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:21,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:00:21,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:21,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 21:00:21,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:21,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:21,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:21,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:21,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:21,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:21,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:00:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:21,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:21,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:21,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 21:00:21,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:21,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 21:00:21,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:21,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:00:21,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:21,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-14 21:00:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:21,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:21,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:21,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:00:21,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:21,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 21:00:21,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:21,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:00:21,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 271 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 21:00:21,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299743191] [2020-10-14 21:00:21,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:21,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:00:21,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46041005] [2020-10-14 21:00:21,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:00:21,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:21,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:00:21,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:00:21,823 INFO L87 Difference]: Start difference. First operand 18098 states and 21599 transitions. Second operand 7 states. [2020-10-14 21:00:25,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:25,377 INFO L93 Difference]: Finished difference Result 33148 states and 39794 transitions. [2020-10-14 21:00:25,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:00:25,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 356 [2020-10-14 21:00:25,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:25,408 INFO L225 Difference]: With dead ends: 33148 [2020-10-14 21:00:25,409 INFO L226 Difference]: Without dead ends: 17947 [2020-10-14 21:00:25,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:00:25,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17947 states. [2020-10-14 21:00:25,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17947 to 17907. [2020-10-14 21:00:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17907 states. [2020-10-14 21:00:25,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17907 states to 17907 states and 21291 transitions. [2020-10-14 21:00:25,665 INFO L78 Accepts]: Start accepts. Automaton has 17907 states and 21291 transitions. Word has length 356 [2020-10-14 21:00:25,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:25,665 INFO L479 AbstractCegarLoop]: Abstraction has 17907 states and 21291 transitions. [2020-10-14 21:00:25,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:00:25,665 INFO L276 IsEmpty]: Start isEmpty. Operand 17907 states and 21291 transitions. [2020-10-14 21:00:25,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-14 21:00:25,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:25,674 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:25,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 21:00:25,675 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:25,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:25,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1398878030, now seen corresponding path program 1 times [2020-10-14 21:00:25,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:25,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318378389] [2020-10-14 21:00:25,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:25,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:25,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:26,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:26,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:28,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:28,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 383 [2020-10-14 21:00:28,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:00:28,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3157 [2020-10-14 21:00:28,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:28,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:28,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:28,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 21:00:28,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 21:00:28,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:28,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:28,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:28,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:28,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:28,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:28,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:28,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:28,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:28,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:28,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:28,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:28,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:29,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:29,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:29,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:29,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:00:29,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:29,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:00:29,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:29,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:29,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:29,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:00:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:29,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:29,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:29,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:00:29,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:29,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 21:00:29,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:29,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:29,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:00:29,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:29,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:00:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:29,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:29,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:29,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 21:00:29,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:29,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 21:00:29,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:29,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 21:00:29,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:29,422 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 283 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-14 21:00:29,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318378389] [2020-10-14 21:00:29,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:29,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:00:29,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992849866] [2020-10-14 21:00:29,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:00:29,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:29,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:00:29,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:00:29,425 INFO L87 Difference]: Start difference. First operand 17907 states and 21291 transitions. Second operand 7 states. [2020-10-14 21:00:33,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:33,693 INFO L93 Difference]: Finished difference Result 35784 states and 43069 transitions. [2020-10-14 21:00:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:00:33,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 369 [2020-10-14 21:00:33,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:33,734 INFO L225 Difference]: With dead ends: 35784 [2020-10-14 21:00:33,734 INFO L226 Difference]: Without dead ends: 21945 [2020-10-14 21:00:33,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:00:33,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21945 states. [2020-10-14 21:00:33,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21945 to 20579. [2020-10-14 21:00:33,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20579 states. [2020-10-14 21:00:34,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20579 states to 20579 states and 24179 transitions. [2020-10-14 21:00:34,029 INFO L78 Accepts]: Start accepts. Automaton has 20579 states and 24179 transitions. Word has length 369 [2020-10-14 21:00:34,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:34,030 INFO L479 AbstractCegarLoop]: Abstraction has 20579 states and 24179 transitions. [2020-10-14 21:00:34,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:00:34,030 INFO L276 IsEmpty]: Start isEmpty. Operand 20579 states and 24179 transitions. [2020-10-14 21:00:34,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-10-14 21:00:34,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:34,040 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:34,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 21:00:34,040 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:34,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:34,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1658538327, now seen corresponding path program 1 times [2020-10-14 21:00:34,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:34,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024391767] [2020-10-14 21:00:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:34,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:34,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:34,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 394 [2020-10-14 21:00:34,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:34,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-10-14 21:00:34,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:34,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:34,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-14 21:00:34,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 21:00:34,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:34,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:34,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:34,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:34,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:34,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:34,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:34,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:34,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:34,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:34,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:34,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:34,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:34,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:34,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:34,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:00:34,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:34,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:00:34,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:34,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:34,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:34,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:00:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:34,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:34,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:34,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:00:34,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:34,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:00:34,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:34,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:35,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 21:00:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:35,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:35,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:35,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 21:00:35,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:35,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:00:35,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:35,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 21:00:35,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:35,150 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2020-10-14 21:00:35,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024391767] [2020-10-14 21:00:35,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:35,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:00:35,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701838564] [2020-10-14 21:00:35,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:00:35,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:35,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:00:35,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:00:35,152 INFO L87 Difference]: Start difference. First operand 20579 states and 24179 transitions. Second operand 5 states. [2020-10-14 21:00:37,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:37,556 INFO L93 Difference]: Finished difference Result 24299 states and 28459 transitions. [2020-10-14 21:00:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:00:37,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 380 [2020-10-14 21:00:37,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:37,597 INFO L225 Difference]: With dead ends: 24299 [2020-10-14 21:00:37,597 INFO L226 Difference]: Without dead ends: 24297 [2020-10-14 21:00:37,606 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 [2020-10-14 21:00:37,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24297 states. [2020-10-14 21:00:37,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24297 to 24049. [2020-10-14 21:00:37,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24049 states. [2020-10-14 21:00:37,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24049 states to 24049 states and 28198 transitions. [2020-10-14 21:00:37,935 INFO L78 Accepts]: Start accepts. Automaton has 24049 states and 28198 transitions. Word has length 380 [2020-10-14 21:00:37,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:37,935 INFO L479 AbstractCegarLoop]: Abstraction has 24049 states and 28198 transitions. [2020-10-14 21:00:37,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:00:37,936 INFO L276 IsEmpty]: Start isEmpty. Operand 24049 states and 28198 transitions. [2020-10-14 21:00:37,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-10-14 21:00:37,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:37,946 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:37,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 21:00:37,947 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:37,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:37,947 INFO L82 PathProgramCache]: Analyzing trace with hash -2141464534, now seen corresponding path program 1 times [2020-10-14 21:00:37,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:37,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580936340] [2020-10-14 21:00:37,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:38,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:39,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:39,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 415 [2020-10-14 21:00:39,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:39,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1290 [2020-10-14 21:00:39,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:39,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-14 21:00:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 21:00:39,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:39,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:39,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:39,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:39,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:39,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:39,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:00:39,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:39,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:39,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:39,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:39,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:39,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:39,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:39,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:39,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:39,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:00:39,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 21:00:39,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:39,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:39,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:39,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:39,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:00:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:39,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:39,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:39,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:00:39,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 21:00:39,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:39,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:39,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:39,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:39,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 21:00:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:39,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:39,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:39,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 21:00:39,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:39,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 21:00:39,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:39,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:39,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:39,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:39,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 21:00:39,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:40,067 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-10-14 21:00:40,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580936340] [2020-10-14 21:00:40,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:40,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:00:40,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079746000] [2020-10-14 21:00:40,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:00:40,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:40,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:00:40,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:00:40,070 INFO L87 Difference]: Start difference. First operand 24049 states and 28198 transitions. Second operand 5 states. [2020-10-14 21:00:42,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:42,703 INFO L93 Difference]: Finished difference Result 26819 states and 31322 transitions. [2020-10-14 21:00:42,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:00:42,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 401 [2020-10-14 21:00:42,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:42,745 INFO L225 Difference]: With dead ends: 26819 [2020-10-14 21:00:42,746 INFO L226 Difference]: Without dead ends: 26817 [2020-10-14 21:00:42,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:00:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26817 states. [2020-10-14 21:00:43,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26817 to 26557. [2020-10-14 21:00:43,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26557 states. [2020-10-14 21:00:43,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26557 states to 26557 states and 31049 transitions. [2020-10-14 21:00:43,105 INFO L78 Accepts]: Start accepts. Automaton has 26557 states and 31049 transitions. Word has length 401 [2020-10-14 21:00:43,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:43,105 INFO L479 AbstractCegarLoop]: Abstraction has 26557 states and 31049 transitions. [2020-10-14 21:00:43,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:00:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 26557 states and 31049 transitions. [2020-10-14 21:00:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-10-14 21:00:43,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:43,121 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:43,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 21:00:43,121 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:43,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:43,122 INFO L82 PathProgramCache]: Analyzing trace with hash -799332012, now seen corresponding path program 1 times [2020-10-14 21:00:43,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:43,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909840709] [2020-10-14 21:00:43,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:43,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:43,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:43,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:44,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:46,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:48,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:48,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 451 [2020-10-14 21:00:48,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:00:48,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 21:00:48,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:48,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:48,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:00:48,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-14 21:00:48,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 21:00:48,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:48,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:48,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:48,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:48,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:48,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:48,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:48,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:48,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:48,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:48,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:48,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:48,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:48,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:48,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:48,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:48,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 21:00:48,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:48,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 21:00:48,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:48,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:48,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:48,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:48,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 21:00:48,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:48,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 21:00:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:48,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:48,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:48,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 21:00:48,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:48,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 21:00:48,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:48,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:48,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:00:48,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:48,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 21:00:48,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:48,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-14 21:00:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:48,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:48,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:49,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:49,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 21:00:49,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:00:49,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-14 21:00:49,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:49,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 21:00:49,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:49,383 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 318 proven. 88 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 21:00:49,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909840709] [2020-10-14 21:00:49,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:49,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 21:00:49,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021483971] [2020-10-14 21:00:49,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 21:00:49,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:49,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 21:00:49,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:00:49,385 INFO L87 Difference]: Start difference. First operand 26557 states and 31049 transitions. Second operand 10 states. [2020-10-14 21:00:54,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:54,789 INFO L93 Difference]: Finished difference Result 49700 states and 58089 transitions. [2020-10-14 21:00:54,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 21:00:54,790 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 437 [2020-10-14 21:00:54,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:54,842 INFO L225 Difference]: With dead ends: 49700 [2020-10-14 21:00:54,842 INFO L226 Difference]: Without dead ends: 28733 [2020-10-14 21:00:54,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-10-14 21:00:54,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28733 states. [2020-10-14 21:00:55,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28733 to 28467. [2020-10-14 21:00:55,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28467 states. [2020-10-14 21:00:55,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28467 states to 28467 states and 33140 transitions. [2020-10-14 21:00:55,208 INFO L78 Accepts]: Start accepts. Automaton has 28467 states and 33140 transitions. Word has length 437 [2020-10-14 21:00:55,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:55,209 INFO L479 AbstractCegarLoop]: Abstraction has 28467 states and 33140 transitions. [2020-10-14 21:00:55,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 21:00:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 28467 states and 33140 transitions. [2020-10-14 21:00:55,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2020-10-14 21:00:55,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:55,223 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:55,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 21:00:55,223 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:55,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:55,223 INFO L82 PathProgramCache]: Analyzing trace with hash -764977962, now seen corresponding path program 1 times [2020-10-14 21:00:55,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:55,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530248927] [2020-10-14 21:00:55,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:55,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:55,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:55,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:56,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:57,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:57,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 458 [2020-10-14 21:00:57,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:00:57,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2575 [2020-10-14 21:00:57,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:57,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-10-14 21:00:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 21:00:57,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:57,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:57,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:57,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:57,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:57,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:57,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:57,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:57,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:57,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:57,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:57,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:57,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:57,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:00:57,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:57,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:00:57,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:57,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:57,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:57,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:57,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:58,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:00:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:58,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:58,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:58,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:00:58,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:58,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 21:00:58,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:58,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:00:58,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 21:00:58,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-10-14 21:00:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:58,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:58,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:58,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 21:00:58,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-14 21:00:58,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:58,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:58,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:58,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 21:00:58,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 21:00:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 329 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 21:00:58,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530248927] [2020-10-14 21:00:58,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:58,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:00:58,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983838235] [2020-10-14 21:00:58,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:00:58,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:58,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:00:58,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:00:58,737 INFO L87 Difference]: Start difference. First operand 28467 states and 33140 transitions. Second operand 7 states. [2020-10-14 21:01:03,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:03,360 INFO L93 Difference]: Finished difference Result 53861 states and 62698 transitions. [2020-10-14 21:01:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:01:03,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 444 [2020-10-14 21:01:03,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:03,414 INFO L225 Difference]: With dead ends: 53861 [2020-10-14 21:01:03,414 INFO L226 Difference]: Without dead ends: 29470 [2020-10-14 21:01:03,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:01:03,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29470 states. [2020-10-14 21:01:03,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29470 to 27312. [2020-10-14 21:01:03,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27312 states. [2020-10-14 21:01:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27312 states to 27312 states and 31385 transitions. [2020-10-14 21:01:03,744 INFO L78 Accepts]: Start accepts. Automaton has 27312 states and 31385 transitions. Word has length 444 [2020-10-14 21:01:03,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:03,745 INFO L479 AbstractCegarLoop]: Abstraction has 27312 states and 31385 transitions. [2020-10-14 21:01:03,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:01:03,745 INFO L276 IsEmpty]: Start isEmpty. Operand 27312 states and 31385 transitions. [2020-10-14 21:01:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2020-10-14 21:01:03,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:03,755 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:01:03,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 21:01:03,755 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:03,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:03,756 INFO L82 PathProgramCache]: Analyzing trace with hash -999004670, now seen corresponding path program 1 times [2020-10-14 21:01:03,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:03,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034076976] [2020-10-14 21:01:03,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:03,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:03,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:05,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:08,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:08,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 471 [2020-10-14 21:01:08,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:01:08,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4272 [2020-10-14 21:01:08,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:08,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 21:01:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:01:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 357 [2020-10-14 21:01:08,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:08,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:08,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:08,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:08,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:08,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:08,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:01:08,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:08,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:08,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:08,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:08,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:01:08,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:08,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:08,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:08,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:08,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:01:08,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:08,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 21:01:08,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:08,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 21:01:08,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:08,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:01:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:08,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:08,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:08,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:01:08,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:08,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 21:01:08,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:08,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:08,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:01:08,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:08,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 21:01:08,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:01:08,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 21:01:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:08,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:08,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:09,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:09,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 21:01:09,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:01:09,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-14 21:01:09,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:09,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:09,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:09,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:09,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 21:01:09,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:01:09,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-14 21:01:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:09,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:09,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:09,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 21:01:09,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:09,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 21:01:09,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:09,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:09,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:09,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 21:01:09,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:09,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:01:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 129 proven. 204 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-10-14 21:01:09,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034076976] [2020-10-14 21:01:09,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:09,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 21:01:09,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504786183] [2020-10-14 21:01:09,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 21:01:09,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:09,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 21:01:09,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:01:09,745 INFO L87 Difference]: Start difference. First operand 27312 states and 31385 transitions. Second operand 9 states. [2020-10-14 21:01:15,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:15,261 INFO L93 Difference]: Finished difference Result 57540 states and 66899 transitions. [2020-10-14 21:01:15,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 21:01:15,262 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 455 [2020-10-14 21:01:15,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:15,349 INFO L225 Difference]: With dead ends: 57540 [2020-10-14 21:01:15,349 INFO L226 Difference]: Without dead ends: 34875 [2020-10-14 21:01:15,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2020-10-14 21:01:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34875 states. [2020-10-14 21:01:15,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34875 to 32164. [2020-10-14 21:01:15,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32164 states. [2020-10-14 21:01:15,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32164 states to 32164 states and 36927 transitions. [2020-10-14 21:01:15,772 INFO L78 Accepts]: Start accepts. Automaton has 32164 states and 36927 transitions. Word has length 455 [2020-10-14 21:01:15,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:15,773 INFO L479 AbstractCegarLoop]: Abstraction has 32164 states and 36927 transitions. [2020-10-14 21:01:15,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 21:01:15,773 INFO L276 IsEmpty]: Start isEmpty. Operand 32164 states and 36927 transitions. [2020-10-14 21:01:15,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2020-10-14 21:01:15,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:15,784 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:01:15,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 21:01:15,785 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:15,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:15,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1852479757, now seen corresponding path program 1 times [2020-10-14 21:01:15,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:15,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508746323] [2020-10-14 21:01:15,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:15,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:16,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:16,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:18,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:20,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:20,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 479 [2020-10-14 21:01:20,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:01:20,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4655 [2020-10-14 21:01:20,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:20,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:01:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 353 [2020-10-14 21:01:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:01:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:20,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:20,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:20,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:20,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:20,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:20,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:01:20,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:20,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:20,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:20,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:20,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:20,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:20,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:01:20,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:20,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:01:20,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:20,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:20,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:20,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:20,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:20,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:20,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:01:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:20,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:20,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:20,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 21:01:20,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:20,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:01:20,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:20,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:20,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:20,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:20,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:20,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:20,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-14 21:01:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:20,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:20,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:20,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 21:01:20,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:20,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:01:20,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:20,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 21:01:20,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:20,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2020-10-14 21:01:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:21,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:21,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:21,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:21,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 21:01:21,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:01:21,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 21:01:21,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:21,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:21,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:21,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:21,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 21:01:21,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 128 proven. 4 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2020-10-14 21:01:21,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508746323] [2020-10-14 21:01:21,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:21,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:01:21,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829936499] [2020-10-14 21:01:21,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:01:21,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:21,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:01:21,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:01:21,290 INFO L87 Difference]: Start difference. First operand 32164 states and 36927 transitions. Second operand 6 states. [2020-10-14 21:01:24,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:24,454 INFO L93 Difference]: Finished difference Result 34530 states and 39628 transitions. [2020-10-14 21:01:24,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:01:24,455 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 463 [2020-10-14 21:01:24,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:24,508 INFO L225 Difference]: With dead ends: 34530 [2020-10-14 21:01:24,509 INFO L226 Difference]: Without dead ends: 34528 [2020-10-14 21:01:24,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:01:24,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34528 states. [2020-10-14 21:01:24,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34528 to 32546. [2020-10-14 21:01:24,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32546 states. [2020-10-14 21:01:24,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32546 states to 32546 states and 37434 transitions. [2020-10-14 21:01:24,920 INFO L78 Accepts]: Start accepts. Automaton has 32546 states and 37434 transitions. Word has length 463 [2020-10-14 21:01:24,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:24,921 INFO L479 AbstractCegarLoop]: Abstraction has 32546 states and 37434 transitions. [2020-10-14 21:01:24,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:01:24,921 INFO L276 IsEmpty]: Start isEmpty. Operand 32546 states and 37434 transitions. [2020-10-14 21:01:24,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2020-10-14 21:01:24,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:24,929 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:01:24,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 21:01:24,930 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:24,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:24,930 INFO L82 PathProgramCache]: Analyzing trace with hash -370347943, now seen corresponding path program 1 times [2020-10-14 21:01:24,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:24,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623493919] [2020-10-14 21:01:24,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:25,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:25,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:25,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:25,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:25,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:25,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:26,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:26,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:26,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 480 [2020-10-14 21:01:26,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 21:01:26,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1713 [2020-10-14 21:01:26,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:26,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:26,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:26,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:01:26,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-14 21:01:26,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:26,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:26,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:26,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:26,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:26,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:26,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:01:26,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:26,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:26,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:26,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:26,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:01:26,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:26,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:26,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:26,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:26,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:26,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:01:26,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:01:26,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 21:01:26,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:26,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:26,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:26,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:26,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 21:01:26,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:26,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:01:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:26,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:27,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:27,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:27,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:01:27,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:01:27,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 21:01:27,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:27,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:27,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:27,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-14 21:01:27,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 21:01:27,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:27,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-10-14 21:01:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:27,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:27,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:27,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 21:01:27,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:27,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 21:01:27,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:27,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:27,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:27,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 21:01:27,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:27,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 89 proven. 6 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2020-10-14 21:01:27,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623493919] [2020-10-14 21:01:27,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:27,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:01:27,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018812148] [2020-10-14 21:01:27,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:01:27,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:27,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:01:27,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:01:27,318 INFO L87 Difference]: Start difference. First operand 32546 states and 37434 transitions. Second operand 6 states. [2020-10-14 21:01:29,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:29,416 INFO L93 Difference]: Finished difference Result 60510 states and 69525 transitions. [2020-10-14 21:01:29,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:01:29,417 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 466 [2020-10-14 21:01:29,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:29,467 INFO L225 Difference]: With dead ends: 60510 [2020-10-14 21:01:29,467 INFO L226 Difference]: Without dead ends: 30681 [2020-10-14 21:01:29,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:01:29,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30681 states. [2020-10-14 21:01:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30681 to 30378. [2020-10-14 21:01:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30378 states. [2020-10-14 21:01:29,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30378 states to 30378 states and 34678 transitions. [2020-10-14 21:01:29,874 INFO L78 Accepts]: Start accepts. Automaton has 30378 states and 34678 transitions. Word has length 466 [2020-10-14 21:01:29,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:29,875 INFO L479 AbstractCegarLoop]: Abstraction has 30378 states and 34678 transitions. [2020-10-14 21:01:29,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:01:29,875 INFO L276 IsEmpty]: Start isEmpty. Operand 30378 states and 34678 transitions. [2020-10-14 21:01:29,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2020-10-14 21:01:29,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:29,883 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:01:29,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 21:01:29,883 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:29,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:29,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1022943413, now seen corresponding path program 1 times [2020-10-14 21:01:29,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:29,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11801657] [2020-10-14 21:01:29,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:29,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:30,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:30,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:30,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 496 [2020-10-14 21:01:30,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:01:30,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-10-14 21:01:30,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:30,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 461 [2020-10-14 21:01:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 21:01:30,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:30,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:30,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:30,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:30,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:30,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:30,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:01:30,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:30,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:30,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:30,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:30,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:30,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:30,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:30,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:30,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:01:30,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:30,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:01:30,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:30,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:30,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:30,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:01:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:30,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:30,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:30,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 21:01:30,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:30,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:01:30,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:30,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:30,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:30,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:30,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:30,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:30,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-10-14 21:01:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:30,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:30,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:30,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 21:01:30,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:30,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 21:01:30,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:30,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:30,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 21:01:30,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2020-10-14 21:01:31,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11801657] [2020-10-14 21:01:31,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:31,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:01:31,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975060749] [2020-10-14 21:01:31,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:01:31,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:31,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:01:31,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:01:31,410 INFO L87 Difference]: Start difference. First operand 30378 states and 34678 transitions. Second operand 5 states. [2020-10-14 21:01:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:33,770 INFO L93 Difference]: Finished difference Result 30666 states and 34966 transitions. [2020-10-14 21:01:33,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:01:33,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 482 [2020-10-14 21:01:33,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:33,821 INFO L225 Difference]: With dead ends: 30666 [2020-10-14 21:01:33,821 INFO L226 Difference]: Without dead ends: 30474 [2020-10-14 21:01:33,831 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 [2020-10-14 21:01:33,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30474 states. [2020-10-14 21:01:34,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30474 to 30376. [2020-10-14 21:01:34,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30376 states. [2020-10-14 21:01:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30376 states to 30376 states and 34639 transitions. [2020-10-14 21:01:34,157 INFO L78 Accepts]: Start accepts. Automaton has 30376 states and 34639 transitions. Word has length 482 [2020-10-14 21:01:34,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:34,157 INFO L479 AbstractCegarLoop]: Abstraction has 30376 states and 34639 transitions. [2020-10-14 21:01:34,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:01:34,158 INFO L276 IsEmpty]: Start isEmpty. Operand 30376 states and 34639 transitions. [2020-10-14 21:01:34,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2020-10-14 21:01:34,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:34,167 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:01:34,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 21:01:34,167 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:34,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:34,168 INFO L82 PathProgramCache]: Analyzing trace with hash -565520892, now seen corresponding path program 1 times [2020-10-14 21:01:34,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:34,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602898213] [2020-10-14 21:01:34,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:34,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:34,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:36,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:36,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:38,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:38,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 536 [2020-10-14 21:01:38,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:01:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4159 [2020-10-14 21:01:38,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:38,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 21:01:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:01:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 530 [2020-10-14 21:01:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:38,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:38,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:38,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:38,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:38,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:38,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:01:38,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:38,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:38,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:38,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:01:38,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:38,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:38,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:38,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:38,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:01:38,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:38,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 21:01:38,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:38,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:01:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 21:01:38,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:38,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:01:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:38,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:39,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:39,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 21:01:39,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:39,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-14 21:01:39,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:39,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:39,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:01:39,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:39,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 21:01:39,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:01:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-10-14 21:01:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:39,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:39,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:39,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 21:01:39,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:39,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 21:01:39,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:39,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:39,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:01:39,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:39,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 21:01:39,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:39,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2020-10-14 21:01:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:39,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:39,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:39,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 21:01:39,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:39,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 21:01:39,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:39,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:39,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 21:01:39,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 297 proven. 134 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2020-10-14 21:01:39,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602898213] [2020-10-14 21:01:39,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:39,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 21:01:39,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616279182] [2020-10-14 21:01:39,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 21:01:39,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:39,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 21:01:39,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:01:39,633 INFO L87 Difference]: Start difference. First operand 30376 states and 34639 transitions. Second operand 13 states. [2020-10-14 21:01:47,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:47,336 INFO L93 Difference]: Finished difference Result 67738 states and 78997 transitions. [2020-10-14 21:01:47,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 21:01:47,338 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 520 [2020-10-14 21:01:47,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:47,461 INFO L225 Difference]: With dead ends: 67738 [2020-10-14 21:01:47,461 INFO L226 Difference]: Without dead ends: 40839 [2020-10-14 21:01:47,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=637, Unknown=0, NotChecked=0, Total=870 [2020-10-14 21:01:47,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40839 states. [2020-10-14 21:01:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40839 to 36374. [2020-10-14 21:01:48,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36374 states. [2020-10-14 21:01:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36374 states to 36374 states and 41409 transitions. [2020-10-14 21:01:48,100 INFO L78 Accepts]: Start accepts. Automaton has 36374 states and 41409 transitions. Word has length 520 [2020-10-14 21:01:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:48,100 INFO L479 AbstractCegarLoop]: Abstraction has 36374 states and 41409 transitions. [2020-10-14 21:01:48,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 21:01:48,100 INFO L276 IsEmpty]: Start isEmpty. Operand 36374 states and 41409 transitions. [2020-10-14 21:01:48,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-10-14 21:01:48,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:48,114 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:01:48,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 21:01:48,115 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:48,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:48,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1476698298, now seen corresponding path program 1 times [2020-10-14 21:01:48,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:48,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647768543] [2020-10-14 21:01:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:48,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:48,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:48,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:51,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:53,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:53,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 544 [2020-10-14 21:01:53,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:01:53,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 21:01:53,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:53,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 21:01:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:01:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 538 [2020-10-14 21:01:53,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:53,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:53,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:53,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:53,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:53,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:53,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:01:53,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:53,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:53,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:01:53,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:53,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:53,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:53,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:53,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:01:53,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:53,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 21:01:53,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:53,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:01:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:53,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 21:01:53,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:53,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:01:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:53,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:53,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:53,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-14 21:01:53,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:01:53,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-14 21:01:53,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:53,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 21:01:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:53,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 21:01:53,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:53,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-14 21:01:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:53,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:54,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:54,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 21:01:54,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:54,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 21:01:54,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:54,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:01:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 21:01:54,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:54,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 21:01:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:54,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:54,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:54,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 21:01:54,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:54,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 21:01:54,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:54,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 21:01:54,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:54,558 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 280 proven. 313 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 21:01:54,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647768543] [2020-10-14 21:01:54,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:54,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 21:01:54,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292880949] [2020-10-14 21:01:54,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 21:01:54,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:54,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 21:01:54,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:01:54,560 INFO L87 Difference]: Start difference. First operand 36374 states and 41409 transitions. Second operand 13 states. [2020-10-14 21:02:02,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:02,820 INFO L93 Difference]: Finished difference Result 81080 states and 92786 transitions. [2020-10-14 21:02:02,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 21:02:02,822 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 528 [2020-10-14 21:02:02,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:02,916 INFO L225 Difference]: With dead ends: 81080 [2020-10-14 21:02:02,916 INFO L226 Difference]: Without dead ends: 48981 [2020-10-14 21:02:02,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=224, Invalid=646, Unknown=0, NotChecked=0, Total=870 [2020-10-14 21:02:02,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48981 states. [2020-10-14 21:02:03,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48981 to 46188. [2020-10-14 21:02:03,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46188 states. [2020-10-14 21:02:03,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46188 states to 46188 states and 52323 transitions. [2020-10-14 21:02:03,590 INFO L78 Accepts]: Start accepts. Automaton has 46188 states and 52323 transitions. Word has length 528 [2020-10-14 21:02:03,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:03,590 INFO L479 AbstractCegarLoop]: Abstraction has 46188 states and 52323 transitions. [2020-10-14 21:02:03,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 21:02:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand 46188 states and 52323 transitions. [2020-10-14 21:02:03,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2020-10-14 21:02:03,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:03,622 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:02:03,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 21:02:03,622 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:03,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:03,623 INFO L82 PathProgramCache]: Analyzing trace with hash 912427712, now seen corresponding path program 1 times [2020-10-14 21:02:03,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:03,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828942278] [2020-10-14 21:02:03,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:03,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:03,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:04,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:04,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:07,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:08,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:08,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 713 [2020-10-14 21:02:08,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:02:08,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 21:02:08,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:08,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:02:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 369 [2020-10-14 21:02:08,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 21:02:08,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:08,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:08,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:08,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:08,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:08,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:08,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:02:08,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:08,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:08,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:08,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:08,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:08,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:08,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:08,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:08,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:02:08,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:08,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 21:02:08,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:08,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:08,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:08,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:08,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:08,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:08,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:02:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:08,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:09,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:09,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:02:09,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:09,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:02:09,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:09,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:09,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:09,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:09,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:09,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:09,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-10-14 21:02:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:09,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:09,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:09,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:02:09,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:09,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-14 21:02:09,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:09,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:02:09,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:09,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-10-14 21:02:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:09,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:09,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:09,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:09,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 21:02:09,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:02:09,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 21:02:09,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:09,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:09,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 21:02:09,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:09,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2020-10-14 21:02:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:09,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:09,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:09,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 21:02:09,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:09,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 21:02:09,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:09,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:09,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:09,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:02:09,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 21:02:09,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:09,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-10-14 21:02:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:09,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:09,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:09,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:02:09,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:09,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:02:09,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:09,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:09,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:09,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 21:02:09,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:09,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:10,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1660 backedges. 542 proven. 90 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2020-10-14 21:02:10,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828942278] [2020-10-14 21:02:10,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:02:10,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:02:10,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880366220] [2020-10-14 21:02:10,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:02:10,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:10,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:02:10,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:02:10,015 INFO L87 Difference]: Start difference. First operand 46188 states and 52323 transitions. Second operand 7 states. [2020-10-14 21:02:14,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:14,422 INFO L93 Difference]: Finished difference Result 94421 states and 106936 transitions. [2020-10-14 21:02:14,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:02:14,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 693 [2020-10-14 21:02:14,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:14,502 INFO L225 Difference]: With dead ends: 94421 [2020-10-14 21:02:14,503 INFO L226 Difference]: Without dead ends: 42745 [2020-10-14 21:02:14,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:02:14,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42745 states. [2020-10-14 21:02:14,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42745 to 37996. [2020-10-14 21:02:14,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37996 states. [2020-10-14 21:02:15,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37996 states to 37996 states and 42282 transitions. [2020-10-14 21:02:15,002 INFO L78 Accepts]: Start accepts. Automaton has 37996 states and 42282 transitions. Word has length 693 [2020-10-14 21:02:15,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:15,003 INFO L479 AbstractCegarLoop]: Abstraction has 37996 states and 42282 transitions. [2020-10-14 21:02:15,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:02:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 37996 states and 42282 transitions. [2020-10-14 21:02:15,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2020-10-14 21:02:15,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:15,028 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-14 21:02:15,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 21:02:15,029 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:15,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:15,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1279766710, now seen corresponding path program 1 times [2020-10-14 21:02:15,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:15,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528628059] [2020-10-14 21:02:15,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:15,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:15,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:16,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:20,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:20,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 735 [2020-10-14 21:02:20,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:02:20,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5195 [2020-10-14 21:02:20,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:20,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 551 [2020-10-14 21:02:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 21:02:20,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:20,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:20,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:20,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:20,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:20,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:20,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:02:20,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:20,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:20,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:20,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:20,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:20,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:20,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:20,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:20,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:02:20,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:20,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:02:20,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:20,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:20,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:20,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:02:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:20,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:20,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:20,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 21:02:20,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:20,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:02:20,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:20,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:20,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:20,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-14 21:02:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:20,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:20,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:20,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:02:20,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:20,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:02:20,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:20,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:20,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:20,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2020-10-14 21:02:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:20,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:20,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:20,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 21:02:20,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:20,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 21:02:20,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:20,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 21:02:20,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:20,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2020-10-14 21:02:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:20,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:20,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:20,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 21:02:20,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:20,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 21:02:20,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:20,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:02:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 21:02:20,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:21,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 662 proven. 2 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2020-10-14 21:02:21,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528628059] [2020-10-14 21:02:21,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:02:21,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:02:21,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957930421] [2020-10-14 21:02:21,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:02:21,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:21,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:02:21,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:02:21,142 INFO L87 Difference]: Start difference. First operand 37996 states and 42282 transitions. Second operand 7 states. [2020-10-14 21:02:24,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:24,571 INFO L93 Difference]: Finished difference Result 71459 states and 79463 transitions. [2020-10-14 21:02:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:02:24,573 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 717 [2020-10-14 21:02:24,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:24,637 INFO L225 Difference]: With dead ends: 71459 [2020-10-14 21:02:24,638 INFO L226 Difference]: Without dead ends: 38296 [2020-10-14 21:02:24,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:02:24,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38296 states. [2020-10-14 21:02:25,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38296 to 36838. [2020-10-14 21:02:25,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36838 states. [2020-10-14 21:02:25,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36838 states to 36838 states and 40642 transitions. [2020-10-14 21:02:25,108 INFO L78 Accepts]: Start accepts. Automaton has 36838 states and 40642 transitions. Word has length 717 [2020-10-14 21:02:25,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:25,109 INFO L479 AbstractCegarLoop]: Abstraction has 36838 states and 40642 transitions. [2020-10-14 21:02:25,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:02:25,109 INFO L276 IsEmpty]: Start isEmpty. Operand 36838 states and 40642 transitions. [2020-10-14 21:02:25,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2020-10-14 21:02:25,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:25,137 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:02:25,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 21:02:25,137 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:25,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:25,138 INFO L82 PathProgramCache]: Analyzing trace with hash -381093426, now seen corresponding path program 1 times [2020-10-14 21:02:25,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:25,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677023010] [2020-10-14 21:02:25,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:25,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:25,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:26,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:26,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:30,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:30,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 875 [2020-10-14 21:02:30,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:02:30,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 21:02:30,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:30,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 583 [2020-10-14 21:02:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 21:02:30,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:30,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:30,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:30,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:30,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:30,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:30,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:02:30,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:30,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:30,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:30,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:30,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:30,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:30,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:02:30,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:30,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:02:30,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:30,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:30,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:30,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:30,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:30,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:30,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:02:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:30,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:30,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:30,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:02:30,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:30,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:02:30,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:30,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:30,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:30,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:30,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:30,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:30,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-10-14 21:02:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:30,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:30,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:30,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 21:02:30,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:30,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:02:30,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:30,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:30,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:30,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2020-10-14 21:02:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:30,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:30,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:30,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 21:02:30,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:30,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 21:02:30,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:30,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:30,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-14 21:02:30,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:02:30,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-14 21:02:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:30,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:31,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:31,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:02:31,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:31,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 21:02:31,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:31,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:31,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:31,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:02:31,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 21:02:31,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:31,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2020-10-14 21:02:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:31,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:31,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:31,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:02:31,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:31,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:02:31,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:31,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:31,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:31,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 21:02:31,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:31,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:31,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1963 backedges. 748 proven. 93 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2020-10-14 21:02:31,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677023010] [2020-10-14 21:02:31,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:02:31,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:02:31,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827991118] [2020-10-14 21:02:31,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:02:31,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:31,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:02:31,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:02:31,531 INFO L87 Difference]: Start difference. First operand 36838 states and 40642 transitions. Second operand 7 states.