/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/Problem16_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:09:25,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:09:25,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:09:25,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:09:25,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:09:25,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:09:25,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:09:25,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:09:25,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:09:25,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:09:25,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:09:25,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:09:25,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:09:25,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:09:25,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:09:25,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:09:25,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:09:25,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:09:25,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:09:25,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:09:25,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:09:25,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:09:25,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:09:25,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:09:25,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:09:25,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:09:25,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:09:25,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:09:25,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:09:25,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:09:25,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:09:25,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:09:25,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:09:25,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:09:25,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:09:25,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:09:25,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:09:25,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:09:25,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:09:25,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:09:25,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:09:25,886 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 22:09:25,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:09:25,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:09:25,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:09:25,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:09:25,909 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:09:25,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:09:25,910 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:09:25,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:09:25,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:09:25,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:09:25,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:09:25,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:09:25,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:09:25,911 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:09:25,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:09:25,911 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:09:25,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:09:25,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:09:25,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:09:25,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:09:25,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:09:25,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:09:25,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:09:25,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:09:25,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:09:25,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:09:25,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:09:25,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:09:25,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:09:25,914 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 22:09:26,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:09:26,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:09:26,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:09:26,221 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:09:26,222 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:09:26,223 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label09.c [2020-10-14 22:09:26,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/469c7d7f2/8dc8ba4424ef42d08e43174fc6f0d05e/FLAGcd0bd4763 [2020-10-14 22:09:26,826 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:09:26,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label09.c [2020-10-14 22:09:26,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/469c7d7f2/8dc8ba4424ef42d08e43174fc6f0d05e/FLAGcd0bd4763 [2020-10-14 22:09:27,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/469c7d7f2/8dc8ba4424ef42d08e43174fc6f0d05e [2020-10-14 22:09:27,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:09:27,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:09:27,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:09:27,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:09:27,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:09:27,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:09:27" (1/1) ... [2020-10-14 22:09:27,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c42d34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:27, skipping insertion in model container [2020-10-14 22:09:27,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:09:27" (1/1) ... [2020-10-14 22:09:27,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:09:27,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:09:27,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:09:28,035 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:09:28,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:09:28,513 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:09:28,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:28 WrapperNode [2020-10-14 22:09:28,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:09:28,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:09:28,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:09:28,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:09:28,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:28" (1/1) ... [2020-10-14 22:09:28,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:28" (1/1) ... [2020-10-14 22:09:28,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:28" (1/1) ... [2020-10-14 22:09:28,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:28" (1/1) ... [2020-10-14 22:09:28,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:28" (1/1) ... [2020-10-14 22:09:28,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:28" (1/1) ... [2020-10-14 22:09:28,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:28" (1/1) ... [2020-10-14 22:09:28,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:09:28,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:09:28,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:09:28,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:09:28,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:28" (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 22:09:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:09:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:09:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:09:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:09:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:09:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:09:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:09:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:09:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:09:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:09:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:09:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:09:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:09:30,896 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:09:30,897 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:09:30,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:09:30 BoogieIcfgContainer [2020-10-14 22:09:30,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:09:30,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:09:30,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:09:30,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:09:30,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:09:27" (1/3) ... [2020-10-14 22:09:30,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f22f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:09:30, skipping insertion in model container [2020-10-14 22:09:30,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:28" (2/3) ... [2020-10-14 22:09:30,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f22f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:09:30, skipping insertion in model container [2020-10-14 22:09:30,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:09:30" (3/3) ... [2020-10-14 22:09:30,913 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label09.c [2020-10-14 22:09:30,924 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:09:30,932 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:09:30,946 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:09:30,972 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:09:30,973 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:09:30,973 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:09:30,973 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:09:30,973 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:09:30,973 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:09:30,973 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:09:30,974 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:09:30,999 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:09:31,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 22:09:31,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:31,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:09:31,013 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:31,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:31,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1688658390, now seen corresponding path program 1 times [2020-10-14 22:09:31,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:31,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801428166] [2020-10-14 22:09:31,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:31,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:31,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:31,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 22:09:31,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:31,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-14 22:09:31,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:31,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:09:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 22:09:31,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:09:31,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:31,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:31,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:31,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:31,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:31,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:09:31,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:31,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:31,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:31,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:31,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:31,876 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 22:09:31,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801428166] [2020-10-14 22:09:31,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:09:31,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:09:31,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417811323] [2020-10-14 22:09:31,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:09:31,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:31,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:09:31,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:09:31,904 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:09:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:35,386 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 22:09:35,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:09:35,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-14 22:09:35,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:35,409 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:09:35,410 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:09:35,421 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 22:09:35,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:09:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 22:09:35,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 22:09:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-14 22:09:35,556 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 53 [2020-10-14 22:09:35,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:35,558 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-14 22:09:35,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:09:35,558 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-14 22:09:35,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 22:09:35,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:35,570 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:09:35,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:09:35,570 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:35,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:35,571 INFO L82 PathProgramCache]: Analyzing trace with hash -698643549, now seen corresponding path program 1 times [2020-10-14 22:09:35,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:35,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503447895] [2020-10-14 22:09:35,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:35,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:35,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:36,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:36,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 22:09:36,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:09:36,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 939 [2020-10-14 22:09:36,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:36,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:36,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:09:36,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:36,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:09:36,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:36,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:36,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:36,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:36,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:36,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:09:36,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:36,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:36,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:36,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:36,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:36,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:36,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:09:36,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:36,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 22:09:36,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:36,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:09:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:36,882 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:09:36,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503447895] [2020-10-14 22:09:36,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:09:36,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:09:36,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657937495] [2020-10-14 22:09:36,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:09:36,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:36,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:09:36,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:09:36,886 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 8 states. [2020-10-14 22:09:40,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:40,534 INFO L93 Difference]: Finished difference Result 1730 states and 2646 transitions. [2020-10-14 22:09:40,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:09:40,535 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-10-14 22:09:40,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:40,541 INFO L225 Difference]: With dead ends: 1730 [2020-10-14 22:09:40,541 INFO L226 Difference]: Without dead ends: 1047 [2020-10-14 22:09:40,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:09:40,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-10-14 22:09:40,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1039. [2020-10-14 22:09:40,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-10-14 22:09:40,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1423 transitions. [2020-10-14 22:09:40,590 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1423 transitions. Word has length 128 [2020-10-14 22:09:40,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:40,592 INFO L479 AbstractCegarLoop]: Abstraction has 1039 states and 1423 transitions. [2020-10-14 22:09:40,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:09:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1423 transitions. [2020-10-14 22:09:40,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 22:09:40,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:40,601 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:09:40,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:09:40,602 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:40,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:40,603 INFO L82 PathProgramCache]: Analyzing trace with hash 810546134, now seen corresponding path program 1 times [2020-10-14 22:09:40,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:40,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274079121] [2020-10-14 22:09:40,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:40,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:40,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:41,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:41,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:09:41,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:09:41,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 856 [2020-10-14 22:09:41,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:41,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:41,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:09:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:09:41,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:41,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:41,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:41,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:41,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:41,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:09:41,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:41,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:41,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:41,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:09:41,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:41,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:41,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:41,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:09:41,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:41,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:09:41,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:41,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:41,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:09:41,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:09:41,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:09:41,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:09:41,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274079121] [2020-10-14 22:09:41,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:09:41,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:09:41,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937125544] [2020-10-14 22:09:41,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:41,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:41,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:41,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:41,828 INFO L87 Difference]: Start difference. First operand 1039 states and 1423 transitions. Second operand 7 states. [2020-10-14 22:09:45,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:45,751 INFO L93 Difference]: Finished difference Result 3148 states and 4385 transitions. [2020-10-14 22:09:45,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:09:45,753 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-10-14 22:09:45,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:45,768 INFO L225 Difference]: With dead ends: 3148 [2020-10-14 22:09:45,768 INFO L226 Difference]: Without dead ends: 2115 [2020-10-14 22:09:45,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:09:45,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2020-10-14 22:09:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 2081. [2020-10-14 22:09:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2081 states. [2020-10-14 22:09:45,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2615 transitions. [2020-10-14 22:09:45,848 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2615 transitions. Word has length 129 [2020-10-14 22:09:45,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:45,850 INFO L479 AbstractCegarLoop]: Abstraction has 2081 states and 2615 transitions. [2020-10-14 22:09:45,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:45,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2615 transitions. [2020-10-14 22:09:45,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-14 22:09:45,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:45,855 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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 22:09:45,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:09:45,857 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:45,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:45,858 INFO L82 PathProgramCache]: Analyzing trace with hash -882026201, now seen corresponding path program 1 times [2020-10-14 22:09:45,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:45,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196079431] [2020-10-14 22:09:45,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:45,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:46,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:46,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:47,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:47,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:48,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:48,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-14 22:09:48,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:09:48,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2928 [2020-10-14 22:09:48,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:48,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:48,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:09:48,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:48,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 22:09:48,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:48,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:48,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:48,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:48,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:48,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:48,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:09:48,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:48,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:48,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:09:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:49,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:49,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:49,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:49,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:09:49,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:09:49,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 22:09:49,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:49,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:49,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:09:49,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:49,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:09:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:49,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:49,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:49,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:49,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:49,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:09:49,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:09:49,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 22:09:49,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:49,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:49,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:49,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:49,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 22:09:49,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:49,508 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 84 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 22:09:49,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196079431] [2020-10-14 22:09:49,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:09:49,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:09:49,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854276393] [2020-10-14 22:09:49,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:09:49,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:49,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:09:49,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:09:49,512 INFO L87 Difference]: Start difference. First operand 2081 states and 2615 transitions. Second operand 7 states. [2020-10-14 22:09:56,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:09:56,233 INFO L93 Difference]: Finished difference Result 6573 states and 8539 transitions. [2020-10-14 22:09:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:09:56,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 216 [2020-10-14 22:09:56,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:09:56,258 INFO L225 Difference]: With dead ends: 6573 [2020-10-14 22:09:56,258 INFO L226 Difference]: Without dead ends: 4498 [2020-10-14 22:09:56,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:09:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2020-10-14 22:09:56,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 3477. [2020-10-14 22:09:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3477 states. [2020-10-14 22:09:56,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 4403 transitions. [2020-10-14 22:09:56,431 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 4403 transitions. Word has length 216 [2020-10-14 22:09:56,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:09:56,432 INFO L479 AbstractCegarLoop]: Abstraction has 3477 states and 4403 transitions. [2020-10-14 22:09:56,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:09:56,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 4403 transitions. [2020-10-14 22:09:56,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-10-14 22:09:56,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:56,441 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 22:09:56,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:09:56,441 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:56,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:56,442 INFO L82 PathProgramCache]: Analyzing trace with hash 2224554, now seen corresponding path program 1 times [2020-10-14 22:09:56,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:56,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261917804] [2020-10-14 22:09:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:56,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:56,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:56,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:00,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:01,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:01,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 411 [2020-10-14 22:10:01,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:01,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 22:10:01,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:01,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:10:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:10:01,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:01,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:01,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:01,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:01,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:01,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:01,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:10:01,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:01,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:01,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:01,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:01,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:01,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:01,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:01,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:10:01,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:01,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:10:01,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:01,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:10:01,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:01,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:10:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:01,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:02,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:02,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:02,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:02,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 22:10:02,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:02,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:10:02,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:02,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:10:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:02,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:02,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:02,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:02,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:02,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:10:02,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:02,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:02,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:02,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:10:02,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:02,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 239 proven. 114 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 22:10:02,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261917804] [2020-10-14 22:10:02,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:02,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:02,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534097172] [2020-10-14 22:10:02,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:02,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:02,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:02,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:02,355 INFO L87 Difference]: Start difference. First operand 3477 states and 4403 transitions. Second operand 7 states. [2020-10-14 22:10:06,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:06,586 INFO L93 Difference]: Finished difference Result 8716 states and 11406 transitions. [2020-10-14 22:10:06,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:10:06,587 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 397 [2020-10-14 22:10:06,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:06,613 INFO L225 Difference]: With dead ends: 8716 [2020-10-14 22:10:06,613 INFO L226 Difference]: Without dead ends: 5245 [2020-10-14 22:10:06,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:10:06,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5245 states. [2020-10-14 22:10:06,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5245 to 5220. [2020-10-14 22:10:06,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5220 states. [2020-10-14 22:10:06,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5220 states to 5220 states and 6758 transitions. [2020-10-14 22:10:06,740 INFO L78 Accepts]: Start accepts. Automaton has 5220 states and 6758 transitions. Word has length 397 [2020-10-14 22:10:06,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:06,741 INFO L479 AbstractCegarLoop]: Abstraction has 5220 states and 6758 transitions. [2020-10-14 22:10:06,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:06,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5220 states and 6758 transitions. [2020-10-14 22:10:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2020-10-14 22:10:06,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:06,754 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:06,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:10:06,754 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:06,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:06,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1920256123, now seen corresponding path program 1 times [2020-10-14 22:10:06,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:06,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682345869] [2020-10-14 22:10:06,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:06,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:07,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:07,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:07,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:11,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:11,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 500 [2020-10-14 22:10:11,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:11,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 22:10:11,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:11,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:10:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:10:11,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:10:11,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:11,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:11,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:11,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:11,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:11,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:11,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:10:11,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:11,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:11,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:11,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:11,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:10:11,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:12,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:12,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:12,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:12,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:10:12,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:12,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-14 22:10:12,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:12,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:10:12,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:12,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:10:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:12,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:12,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:12,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:10:12,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:12,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:10:12,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:12,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:12,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:12,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:10:12,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:12,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:12,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:10:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:12,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:12,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:12,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:12,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:12,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:10:12,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:12,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:10:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 138 proven. 174 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 22:10:12,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682345869] [2020-10-14 22:10:12,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:12,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:12,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817744082] [2020-10-14 22:10:12,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:12,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:12,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:12,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:12,936 INFO L87 Difference]: Start difference. First operand 5220 states and 6758 transitions. Second operand 7 states. [2020-10-14 22:10:16,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:16,845 INFO L93 Difference]: Finished difference Result 11197 states and 14465 transitions. [2020-10-14 22:10:16,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:10:16,846 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 486 [2020-10-14 22:10:16,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:16,870 INFO L225 Difference]: With dead ends: 11197 [2020-10-14 22:10:16,870 INFO L226 Difference]: Without dead ends: 5983 [2020-10-14 22:10:16,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:10:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2020-10-14 22:10:16,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 5931. [2020-10-14 22:10:16,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5931 states. [2020-10-14 22:10:17,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 7561 transitions. [2020-10-14 22:10:17,006 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 7561 transitions. Word has length 486 [2020-10-14 22:10:17,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:17,007 INFO L479 AbstractCegarLoop]: Abstraction has 5931 states and 7561 transitions. [2020-10-14 22:10:17,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:17,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 7561 transitions. [2020-10-14 22:10:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2020-10-14 22:10:17,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:17,024 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:17,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:10:17,025 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:17,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:17,025 INFO L82 PathProgramCache]: Analyzing trace with hash 578570498, now seen corresponding path program 1 times [2020-10-14 22:10:17,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:17,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2087191749] [2020-10-14 22:10:17,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:17,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:17,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:17,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:19,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:22,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:22,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 593 [2020-10-14 22:10:22,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:10:22,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-14 22:10:22,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:22,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:22,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:10:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:10:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:22,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:22,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:22,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:22,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:22,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:22,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:10:22,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:22,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:22,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:22,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:22,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:22,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:22,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:10:22,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:22,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:10:22,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:22,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:22,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:22,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:22,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:10:22,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:22,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:10:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:22,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:22,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:22,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:10:22,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:22,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-14 22:10:22,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:22,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:22,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:10:22,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:23,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2020-10-14 22:10:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:23,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:23,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:23,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:10:23,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:23,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:10:23,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:23,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:23,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:10:23,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:23,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:23,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-10-14 22:10:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:23,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:23,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:23,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:23,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:23,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:10:23,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:23,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:10:23,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:23,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:24,196 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 280 proven. 180 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2020-10-14 22:10:24,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2087191749] [2020-10-14 22:10:24,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:24,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:24,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671140930] [2020-10-14 22:10:24,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:24,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:24,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:24,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:24,199 INFO L87 Difference]: Start difference. First operand 5931 states and 7561 transitions. Second operand 7 states. [2020-10-14 22:10:29,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:29,302 INFO L93 Difference]: Finished difference Result 12673 states and 16700 transitions. [2020-10-14 22:10:29,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:10:29,303 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 577 [2020-10-14 22:10:29,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:29,343 INFO L225 Difference]: With dead ends: 12673 [2020-10-14 22:10:29,344 INFO L226 Difference]: Without dead ends: 7019 [2020-10-14 22:10:29,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 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 22:10:29,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7019 states. [2020-10-14 22:10:29,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7019 to 6964. [2020-10-14 22:10:29,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6964 states. [2020-10-14 22:10:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6964 states to 6964 states and 8367 transitions. [2020-10-14 22:10:29,507 INFO L78 Accepts]: Start accepts. Automaton has 6964 states and 8367 transitions. Word has length 577 [2020-10-14 22:10:29,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:29,508 INFO L479 AbstractCegarLoop]: Abstraction has 6964 states and 8367 transitions. [2020-10-14 22:10:29,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:29,509 INFO L276 IsEmpty]: Start isEmpty. Operand 6964 states and 8367 transitions. [2020-10-14 22:10:29,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2020-10-14 22:10:29,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:29,554 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:29,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:10:29,554 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:29,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:29,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1308178130, now seen corresponding path program 1 times [2020-10-14 22:10:29,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:29,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564702774] [2020-10-14 22:10:29,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:29,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:30,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:30,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:32,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:34,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:34,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 843 [2020-10-14 22:10:34,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 22:10:34,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:34,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:10:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:10:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:10:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:34,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:34,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:34,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:34,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:34,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:34,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:10:34,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:34,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:34,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:34,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:10:34,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:34,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:35,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:35,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:35,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:35,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:10:35,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:10:35,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-10-14 22:10:35,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:35,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:10:35,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:35,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:10:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:35,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:35,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:35,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:10:35,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:35,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-14 22:10:35,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:35,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:10:35,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:35,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:10:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:35,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:35,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:35,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:10:35,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:35,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:10:35,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:35,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:35,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:35,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:10:35,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:35,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2020-10-14 22:10:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:36,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:36,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:10:36,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:10:36,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:36,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:36,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:36,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:10:36,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:36,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1070 backedges. 433 proven. 274 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-10-14 22:10:36,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564702774] [2020-10-14 22:10:36,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:36,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:36,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941583297] [2020-10-14 22:10:36,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:36,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:36,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:36,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:36,591 INFO L87 Difference]: Start difference. First operand 6964 states and 8367 transitions. Second operand 7 states. [2020-10-14 22:10:39,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:39,923 INFO L93 Difference]: Finished difference Result 13697 states and 16973 transitions. [2020-10-14 22:10:39,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:10:39,924 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 827 [2020-10-14 22:10:39,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:39,950 INFO L225 Difference]: With dead ends: 13697 [2020-10-14 22:10:39,950 INFO L226 Difference]: Without dead ends: 7415 [2020-10-14 22:10:39,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:10:39,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7415 states. [2020-10-14 22:10:40,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7415 to 7303. [2020-10-14 22:10:40,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2020-10-14 22:10:40,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 8726 transitions. [2020-10-14 22:10:40,110 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 8726 transitions. Word has length 827 [2020-10-14 22:10:40,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:40,111 INFO L479 AbstractCegarLoop]: Abstraction has 7303 states and 8726 transitions. [2020-10-14 22:10:40,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:40,112 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 8726 transitions. [2020-10-14 22:10:40,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 862 [2020-10-14 22:10:40,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:40,127 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:10:40,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:10:40,128 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:40,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1434941654, now seen corresponding path program 1 times [2020-10-14 22:10:40,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:40,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20270727] [2020-10-14 22:10:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:40,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:40,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:43,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:44,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:45,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:45,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 879 [2020-10-14 22:10:45,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:45,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 22:10:45,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:45,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:45,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:45,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:10:45,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:10:45,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:45,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:45,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:45,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:45,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:45,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:45,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:10:45,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:45,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:45,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:45,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:45,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:10:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:45,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:45,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:45,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:45,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:10:45,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:45,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 22:10:45,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:45,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:10:45,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:45,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:10:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:45,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:45,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:45,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:45,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:45,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:10:45,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:45,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:10:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:45,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:45,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:10:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:46,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:46,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:46,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:10:46,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:46,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:10:46,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:46,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:46,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:46,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:10:46,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:46,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:46,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-14 22:10:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:46,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:46,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:46,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:10:46,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:10:46,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:46,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:10:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1468 backedges. 401 proven. 367 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2020-10-14 22:10:46,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20270727] [2020-10-14 22:10:46,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:46,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:46,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334712604] [2020-10-14 22:10:46,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:46,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:46,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:46,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:46,779 INFO L87 Difference]: Start difference. First operand 7303 states and 8726 transitions. Second operand 7 states. [2020-10-14 22:10:50,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:50,797 INFO L93 Difference]: Finished difference Result 17049 states and 20717 transitions. [2020-10-14 22:10:50,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:10:50,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 861 [2020-10-14 22:10:50,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:50,829 INFO L225 Difference]: With dead ends: 17049 [2020-10-14 22:10:50,829 INFO L226 Difference]: Without dead ends: 10428 [2020-10-14 22:10:50,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:10:50,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10428 states. [2020-10-14 22:10:51,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10428 to 10404. [2020-10-14 22:10:51,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10404 states. [2020-10-14 22:10:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10404 states to 10404 states and 12327 transitions. [2020-10-14 22:10:51,038 INFO L78 Accepts]: Start accepts. Automaton has 10404 states and 12327 transitions. Word has length 861 [2020-10-14 22:10:51,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:51,040 INFO L479 AbstractCegarLoop]: Abstraction has 10404 states and 12327 transitions. [2020-10-14 22:10:51,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:51,040 INFO L276 IsEmpty]: Start isEmpty. Operand 10404 states and 12327 transitions. [2020-10-14 22:10:51,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2020-10-14 22:10:51,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:51,059 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 22:10:51,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:10:51,060 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:51,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:51,061 INFO L82 PathProgramCache]: Analyzing trace with hash -34550225, now seen corresponding path program 1 times [2020-10-14 22:10:51,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:51,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60853951] [2020-10-14 22:10:51,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:51,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:51,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:55,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:56,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:56,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:56,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 940 [2020-10-14 22:10:56,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:56,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-14 22:10:56,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:56,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:56,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:56,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 22:10:56,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:10:56,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:56,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:56,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:56,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:56,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:56,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:10:56,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:56,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:56,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:56,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:56,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:56,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:10:56,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:56,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:10:56,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:56,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:56,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:56,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:56,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:56,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:56,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:10:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:56,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:56,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:56,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:10:56,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:56,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 22:10:56,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:56,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:10:56,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:56,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:10:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:56,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:56,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:56,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:56,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:56,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 22:10:56,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:56,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:56,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:10:56,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:57,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:10:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:57,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:57,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:57,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:10:57,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:57,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:10:57,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:57,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:57,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:57,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:10:57,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:57,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:57,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:10:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:57,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:57,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:57,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:10:57,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:10:57,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:57,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:10:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1562 backedges. 503 proven. 208 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2020-10-14 22:10:57,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60853951] [2020-10-14 22:10:57,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:57,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:57,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129475539] [2020-10-14 22:10:57,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:57,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:57,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:57,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:57,793 INFO L87 Difference]: Start difference. First operand 10404 states and 12327 transitions. Second operand 7 states. [2020-10-14 22:11:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:01,751 INFO L93 Difference]: Finished difference Result 20509 states and 24466 transitions. [2020-10-14 22:11:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:11:01,756 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 922 [2020-10-14 22:11:01,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:01,785 INFO L225 Difference]: With dead ends: 20509 [2020-10-14 22:11:01,785 INFO L226 Difference]: Without dead ends: 10787 [2020-10-14 22:11:01,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:11:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10787 states. [2020-10-14 22:11:02,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10787 to 10751. [2020-10-14 22:11:02,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10751 states. [2020-10-14 22:11:02,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 12707 transitions. [2020-10-14 22:11:02,080 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 12707 transitions. Word has length 922 [2020-10-14 22:11:02,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:02,082 INFO L479 AbstractCegarLoop]: Abstraction has 10751 states and 12707 transitions. [2020-10-14 22:11:02,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:02,082 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 12707 transitions. [2020-10-14 22:11:02,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2020-10-14 22:11:02,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:02,103 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 22:11:02,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:11:02,103 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:02,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:02,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1033593867, now seen corresponding path program 1 times [2020-10-14 22:11:02,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:02,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557576982] [2020-10-14 22:11:02,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:02,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:02,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:06,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:07,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:07,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:07,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 942 [2020-10-14 22:11:07,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:11:07,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5170 [2020-10-14 22:11:07,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:07,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:07,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-14 22:11:07,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:11:07,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:07,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:07,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:07,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:07,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:07,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:11:07,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:07,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:07,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:07,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:07,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:07,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:07,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:07,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:07,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:07,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:07,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:07,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:11:07,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:07,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:07,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:07,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:07,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:07,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:07,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:07,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:07,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:07,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:11:07,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:07,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:11:07,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:07,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 22:11:07,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:07,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:11:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:07,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:08,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:08,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:11:08,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:08,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:11:08,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:08,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:11:08,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:08,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:11:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:08,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:08,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:08,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:11:08,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:08,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:11:08,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:08,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:08,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:08,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:11:08,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:08,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:08,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-14 22:11:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:08,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:08,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:08,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:11:08,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:08,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:11:08,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:08,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:08,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:08,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:11:08,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:08,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:08,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 503 proven. 208 refuted. 0 times theorem prover too weak. 853 trivial. 0 not checked. [2020-10-14 22:11:08,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557576982] [2020-10-14 22:11:08,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:08,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:08,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225420246] [2020-10-14 22:11:08,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:08,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:08,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:08,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:08,758 INFO L87 Difference]: Start difference. First operand 10751 states and 12707 transitions. Second operand 7 states. [2020-10-14 22:11:13,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:13,172 INFO L93 Difference]: Finished difference Result 25272 states and 30676 transitions. [2020-10-14 22:11:13,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:11:13,173 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 924 [2020-10-14 22:11:13,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:13,221 INFO L225 Difference]: With dead ends: 25272 [2020-10-14 22:11:13,222 INFO L226 Difference]: Without dead ends: 15203 [2020-10-14 22:11:13,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:11:13,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15203 states. [2020-10-14 22:11:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15203 to 14856. [2020-10-14 22:11:13,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14856 states. [2020-10-14 22:11:13,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14856 states to 14856 states and 18081 transitions. [2020-10-14 22:11:13,504 INFO L78 Accepts]: Start accepts. Automaton has 14856 states and 18081 transitions. Word has length 924 [2020-10-14 22:11:13,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:13,505 INFO L479 AbstractCegarLoop]: Abstraction has 14856 states and 18081 transitions. [2020-10-14 22:11:13,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:13,506 INFO L276 IsEmpty]: Start isEmpty. Operand 14856 states and 18081 transitions. [2020-10-14 22:11:13,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2020-10-14 22:11:13,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:13,533 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:11:13,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:11:13,534 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:13,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:13,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1639584046, now seen corresponding path program 1 times [2020-10-14 22:11:13,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:13,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220794070] [2020-10-14 22:11:13,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:13,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:14,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:14,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:17,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:18,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:18,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:18,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 945 [2020-10-14 22:11:18,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:11:18,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 22:11:18,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:18,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-14 22:11:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:11:18,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:18,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:18,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:18,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:18,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:18,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:18,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:11:18,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:18,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:18,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:18,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:18,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:18,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:18,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:18,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:11:18,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:18,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:11:18,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:18,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:18,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:18,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:18,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:18,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:18,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:11:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:18,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:18,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:18,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:11:18,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:18,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:11:18,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:18,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:11:18,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:19,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:11:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:19,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:19,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:19,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:11:19,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:19,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 22:11:19,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:19,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:19,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:19,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:19,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:11:19,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:19,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2020-10-14 22:11:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:19,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:19,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:19,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:11:19,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:19,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:11:19,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:19,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:11:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:19,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:19,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 799 [2020-10-14 22:11:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:19,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:19,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:19,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:11:19,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:19,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:11:19,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:19,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:11:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1499 backedges. 592 proven. 274 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2020-10-14 22:11:19,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220794070] [2020-10-14 22:11:19,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:19,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:19,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464084399] [2020-10-14 22:11:19,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:19,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:19,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:19,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:19,962 INFO L87 Difference]: Start difference. First operand 14856 states and 18081 transitions. Second operand 7 states. [2020-10-14 22:11:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:24,572 INFO L93 Difference]: Finished difference Result 34472 states and 42548 transitions. [2020-10-14 22:11:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:11:24,573 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 927 [2020-10-14 22:11:24,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:24,620 INFO L225 Difference]: With dead ends: 34472 [2020-10-14 22:11:24,621 INFO L226 Difference]: Without dead ends: 20298 [2020-10-14 22:11:24,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 22:11:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20298 states. [2020-10-14 22:11:24,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20298 to 19957. [2020-10-14 22:11:24,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19957 states. [2020-10-14 22:11:24,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19957 states to 19957 states and 23982 transitions. [2020-10-14 22:11:24,996 INFO L78 Accepts]: Start accepts. Automaton has 19957 states and 23982 transitions. Word has length 927 [2020-10-14 22:11:24,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:24,997 INFO L479 AbstractCegarLoop]: Abstraction has 19957 states and 23982 transitions. [2020-10-14 22:11:24,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:24,997 INFO L276 IsEmpty]: Start isEmpty. Operand 19957 states and 23982 transitions. [2020-10-14 22:11:25,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2020-10-14 22:11:25,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:25,026 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 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 22:11:25,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:11:25,027 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:25,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:25,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1867269551, now seen corresponding path program 1 times [2020-10-14 22:11:25,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:25,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524321649] [2020-10-14 22:11:25,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:25,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:25,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:26,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:29,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:30,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:30,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 976 [2020-10-14 22:11:30,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:11:30,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 22:11:30,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:30,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 641 [2020-10-14 22:11:30,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 22:11:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:30,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:30,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:30,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:30,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:30,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:30,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:11:30,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:30,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:30,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:30,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:30,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:30,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:30,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:30,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:30,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:30,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:30,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:30,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:11:30,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:30,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:30,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:30,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:30,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:30,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:30,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:30,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:30,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:11:30,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:30,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:11:30,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:30,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:30,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:30,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:30,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:30,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:30,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:11:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:30,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:30,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:30,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:11:30,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:30,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:11:30,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:30,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:30,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:30,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:30,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 22:11:30,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:30,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:11:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:30,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:30,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:30,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:11:30,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:30,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 22:11:30,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:30,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:30,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:30,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:30,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-14 22:11:30,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:30,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 830 [2020-10-14 22:11:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:30,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:30,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:30,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:11:30,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:30,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:11:30,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:30,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:30,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:30,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:11:30,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:30,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1666 backedges. 796 proven. 82 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2020-10-14 22:11:31,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524321649] [2020-10-14 22:11:31,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:31,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:31,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251543340] [2020-10-14 22:11:31,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:31,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:31,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:31,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:31,292 INFO L87 Difference]: Start difference. First operand 19957 states and 23982 transitions. Second operand 7 states. [2020-10-14 22:11:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:35,385 INFO L93 Difference]: Finished difference Result 40971 states and 49873 transitions. [2020-10-14 22:11:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:11:35,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 958 [2020-10-14 22:11:35,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:35,433 INFO L225 Difference]: With dead ends: 40971 [2020-10-14 22:11:35,434 INFO L226 Difference]: Without dead ends: 21696 [2020-10-14 22:11:35,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 22:11:35,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21696 states. [2020-10-14 22:11:35,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21696 to 21680. [2020-10-14 22:11:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21680 states. [2020-10-14 22:11:35,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21680 states to 21680 states and 26353 transitions. [2020-10-14 22:11:35,805 INFO L78 Accepts]: Start accepts. Automaton has 21680 states and 26353 transitions. Word has length 958 [2020-10-14 22:11:35,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:35,806 INFO L479 AbstractCegarLoop]: Abstraction has 21680 states and 26353 transitions. [2020-10-14 22:11:35,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 21680 states and 26353 transitions. [2020-10-14 22:11:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2020-10-14 22:11:35,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:35,838 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:35,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:11:35,838 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:35,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:35,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1887202794, now seen corresponding path program 1 times [2020-10-14 22:11:35,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:35,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083071226] [2020-10-14 22:11:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:36,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:36,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:37,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 989 [2020-10-14 22:11:40,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:11:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4368 [2020-10-14 22:11:40,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:11:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 851 [2020-10-14 22:11:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 22:11:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:40,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:11:40,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:11:40,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:11:40,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:11:40,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:11:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:11:40,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:11:40,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:11:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:11:40,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:11:40,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 22:11:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:11:40,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:11:40,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:40,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 22:11:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:40,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:40,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:40,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:11:40,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:40,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 22:11:40,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:40,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:11:40,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:40,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-14 22:11:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:41,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:41,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:41,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:41,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:11:41,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:11:41,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 22:11:41,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:41,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 22:11:41,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1997 backedges. 306 proven. 6 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2020-10-14 22:11:41,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083071226] [2020-10-14 22:11:41,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:41,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:11:41,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721099429] [2020-10-14 22:11:41,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:11:41,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:41,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:11:41,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:11:41,397 INFO L87 Difference]: Start difference. First operand 21680 states and 26353 transitions. Second operand 5 states. [2020-10-14 22:11:42,927 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-14 22:11:44,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:44,830 INFO L93 Difference]: Finished difference Result 45376 states and 56145 transitions. [2020-10-14 22:11:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:11:44,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 969 [2020-10-14 22:11:44,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:44,887 INFO L225 Difference]: With dead ends: 45376 [2020-10-14 22:11:44,887 INFO L226 Difference]: Without dead ends: 24378 [2020-10-14 22:11:44,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 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 22:11:44,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24378 states. [2020-10-14 22:11:45,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24378 to 24378. [2020-10-14 22:11:45,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24378 states. [2020-10-14 22:11:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24378 states to 24378 states and 29634 transitions. [2020-10-14 22:11:45,284 INFO L78 Accepts]: Start accepts. Automaton has 24378 states and 29634 transitions. Word has length 969 [2020-10-14 22:11:45,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:45,286 INFO L479 AbstractCegarLoop]: Abstraction has 24378 states and 29634 transitions. [2020-10-14 22:11:45,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:11:45,286 INFO L276 IsEmpty]: Start isEmpty. Operand 24378 states and 29634 transitions. [2020-10-14 22:11:45,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2020-10-14 22:11:45,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:45,316 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, 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, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:45,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:11:45,316 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:45,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:45,317 INFO L82 PathProgramCache]: Analyzing trace with hash 525536083, now seen corresponding path program 1 times [2020-10-14 22:11:45,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:45,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636218598] [2020-10-14 22:11:45,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:46,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:46,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:48,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:48,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1104 [2020-10-14 22:11:48,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:11:48,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3397 [2020-10-14 22:11:48,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:48,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 851 [2020-10-14 22:11:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 22:11:48,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:49,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:49,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:49,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:49,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:49,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:49,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:11:49,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:49,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:49,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:49,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:49,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:49,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:49,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:49,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:49,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:49,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:11:49,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:11:49,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:49,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:49,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:11:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:49,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:49,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:49,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:11:49,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:49,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:11:49,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:49,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:49,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:49,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:49,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:49,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:49,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:11:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:49,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:49,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:49,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:11:49,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:49,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:11:49,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:49,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:49,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:49,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:49,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:49,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 22:11:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:49,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:49,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:49,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:11:49,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:49,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:11:49,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:49,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:49,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:49,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 22:11:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:49,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:49,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:49,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:11:49,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:49,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:11:49,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:49,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:49,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:49,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:49,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:11:49,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:49,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-14 22:11:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:49,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:49,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:49,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:11:49,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:49,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 22:11:49,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:49,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-14 22:11:49,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:50,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2366 backedges. 1065 proven. 2 refuted. 0 times theorem prover too weak. 1299 trivial. 0 not checked. [2020-10-14 22:11:50,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636218598] [2020-10-14 22:11:50,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:50,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:50,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390945832] [2020-10-14 22:11:50,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:50,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:50,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:50,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:50,303 INFO L87 Difference]: Start difference. First operand 24378 states and 29634 transitions. Second operand 7 states. [2020-10-14 22:11:54,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:54,536 INFO L93 Difference]: Finished difference Result 49141 states and 59802 transitions. [2020-10-14 22:11:54,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:11:54,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1084 [2020-10-14 22:11:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:54,592 INFO L225 Difference]: With dead ends: 49141 [2020-10-14 22:11:54,592 INFO L226 Difference]: Without dead ends: 23894 [2020-10-14 22:11:54,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:11:54,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23894 states. [2020-10-14 22:11:54,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23894 to 21503. [2020-10-14 22:11:54,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21503 states. [2020-10-14 22:11:55,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21503 states to 21503 states and 23905 transitions. [2020-10-14 22:11:55,013 INFO L78 Accepts]: Start accepts. Automaton has 21503 states and 23905 transitions. Word has length 1084 [2020-10-14 22:11:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:55,014 INFO L479 AbstractCegarLoop]: Abstraction has 21503 states and 23905 transitions. [2020-10-14 22:11:55,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 21503 states and 23905 transitions. [2020-10-14 22:11:55,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1358 [2020-10-14 22:11:55,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:55,055 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:55,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:11:55,055 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:55,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1802590726, now seen corresponding path program 1 times [2020-10-14 22:11:55,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:55,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208808400] [2020-10-14 22:11:55,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:55,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:55,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:58,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:59,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:00,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:00,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1379 [2020-10-14 22:12:00,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:12:00,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5644 [2020-10-14 22:12:00,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:00,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:00,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:00,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 851 [2020-10-14 22:12:00,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:12:00,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:01,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:01,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:01,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:01,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:01,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:01,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:12:01,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:01,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:01,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:01,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:01,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:01,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:01,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:01,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:01,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:01,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:12:01,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:01,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:12:01,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:01,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:01,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:01,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:12:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:01,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:01,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:01,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:12:01,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:01,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:12:01,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:01,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:01,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:01,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:01,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:01,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:01,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:12:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:01,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:01,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:01,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:12:01,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:01,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:12:01,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:01,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:01,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:01,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:01,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 22:12:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:01,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:01,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:01,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:12:01,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:01,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:12:01,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:01,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:01,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:01,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 22:12:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:01,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:01,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:01,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:12:01,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:01,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:12:01,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:01,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:12:01,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:01,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-14 22:12:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:01,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:01,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:01,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:01,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:01,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-10-14 22:12:01,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:01,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:12:01,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:02,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1114 [2020-10-14 22:12:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:02,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:02,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:02,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:12:02,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:02,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:12:02,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:02,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:12:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:02,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:03,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3443 backedges. 1180 proven. 197 refuted. 0 times theorem prover too weak. 2066 trivial. 0 not checked. [2020-10-14 22:12:03,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208808400] [2020-10-14 22:12:03,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:03,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:03,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284302014] [2020-10-14 22:12:03,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:03,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:03,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:03,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:03,863 INFO L87 Difference]: Start difference. First operand 21503 states and 23905 transitions. Second operand 7 states. [2020-10-14 22:12:07,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:07,547 INFO L93 Difference]: Finished difference Result 43684 states and 48586 transitions. [2020-10-14 22:12:07,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:12:07,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1357 [2020-10-14 22:12:07,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:07,593 INFO L225 Difference]: With dead ends: 43684 [2020-10-14 22:12:07,593 INFO L226 Difference]: Without dead ends: 22863 [2020-10-14 22:12:07,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:12:07,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22863 states. [2020-10-14 22:12:07,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22863 to 22518. [2020-10-14 22:12:07,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22518 states. [2020-10-14 22:12:07,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22518 states to 22518 states and 24951 transitions. [2020-10-14 22:12:07,891 INFO L78 Accepts]: Start accepts. Automaton has 22518 states and 24951 transitions. Word has length 1357 [2020-10-14 22:12:07,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:07,892 INFO L479 AbstractCegarLoop]: Abstraction has 22518 states and 24951 transitions. [2020-10-14 22:12:07,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:07,893 INFO L276 IsEmpty]: Start isEmpty. Operand 22518 states and 24951 transitions. [2020-10-14 22:12:07,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1435 [2020-10-14 22:12:07,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:07,920 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:12:07,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:12:07,920 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:07,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:07,921 INFO L82 PathProgramCache]: Analyzing trace with hash -94885269, now seen corresponding path program 1 times [2020-10-14 22:12:07,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:07,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359798526] [2020-10-14 22:12:07,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:08,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:08,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:09,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:11,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1460 [2020-10-14 22:12:13,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:12:13,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 22:12:13,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:13,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 843 [2020-10-14 22:12:13,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:12:13,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:13,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:12:13,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:13,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:13,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:13,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:12:13,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:12:13,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:13,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:13,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:13,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:12:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:12:13,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:12:13,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:13,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:13,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:13,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:12:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:12:13,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:12:13,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:13,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 22:12:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:12:13,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:12:13,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:13,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:13,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:13,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 22:12:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:12:13,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:12:13,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:13,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:13,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:13,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2020-10-14 22:12:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:12:13,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:12:13,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:13,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:12:13,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 831 [2020-10-14 22:12:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:14,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:14,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:12:14,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:14,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 22:12:14,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:14,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:12:14,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:14,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1081 [2020-10-14 22:12:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:14,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:14,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:14,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:12:14,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:14,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:12:14,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:14,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:12:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:14,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:14,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1191 [2020-10-14 22:12:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:14,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:14,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:14,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:12:14,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:14,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:12:14,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:14,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:12:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:14,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 1292 proven. 304 refuted. 0 times theorem prover too weak. 2958 trivial. 0 not checked. [2020-10-14 22:12:15,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359798526] [2020-10-14 22:12:15,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:15,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:15,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643967502] [2020-10-14 22:12:15,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:15,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:15,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:15,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:15,612 INFO L87 Difference]: Start difference. First operand 22518 states and 24951 transitions. Second operand 7 states. [2020-10-14 22:12:19,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:19,523 INFO L93 Difference]: Finished difference Result 45371 states and 50317 transitions. [2020-10-14 22:12:19,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:12:19,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1434 [2020-10-14 22:12:19,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:19,571 INFO L225 Difference]: With dead ends: 45371 [2020-10-14 22:12:19,571 INFO L226 Difference]: Without dead ends: 23535 [2020-10-14 22:12:19,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:12:19,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23535 states. [2020-10-14 22:12:19,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23535 to 23533. [2020-10-14 22:12:19,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23533 states. [2020-10-14 22:12:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23533 states to 23533 states and 25975 transitions. [2020-10-14 22:12:19,888 INFO L78 Accepts]: Start accepts. Automaton has 23533 states and 25975 transitions. Word has length 1434 [2020-10-14 22:12:19,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:19,889 INFO L479 AbstractCegarLoop]: Abstraction has 23533 states and 25975 transitions. [2020-10-14 22:12:19,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 23533 states and 25975 transitions. [2020-10-14 22:12:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1454 [2020-10-14 22:12:19,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:19,920 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:12:19,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:12:19,920 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:19,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:19,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1444122358, now seen corresponding path program 1 times [2020-10-14 22:12:19,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:19,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827262301] [2020-10-14 22:12:19,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:20,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:20,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:22,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:24,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:24,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1473 [2020-10-14 22:12:25,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:12:25,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-14 22:12:25,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:25,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-14 22:12:25,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:12:25,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:25,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:25,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:25,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:25,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:12:25,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:25,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:25,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:25,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:25,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:12:25,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:25,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:12:25,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:25,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:25,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:12:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:25,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:12:25,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:25,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:12:25,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:25,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:25,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 22:12:25,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:25,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:12:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:25,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:12:25,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:25,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 22:12:25,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:12:25,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:26,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 661 [2020-10-14 22:12:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:26,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:26,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:26,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:12:26,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:26,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:12:26,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:26,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 22:12:26,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:26,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 937 [2020-10-14 22:12:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:26,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:26,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:26,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:26,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:26,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:12:26,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:26,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:12:26,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:26,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:26,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1210 [2020-10-14 22:12:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:26,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:26,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:26,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:12:26,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:26,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:12:26,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:26,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:26,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:26,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:12:26,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:26,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3365 backedges. 703 proven. 689 refuted. 0 times theorem prover too weak. 1973 trivial. 0 not checked. [2020-10-14 22:12:27,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827262301] [2020-10-14 22:12:27,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:27,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:27,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429262213] [2020-10-14 22:12:27,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:27,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:27,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:27,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:27,336 INFO L87 Difference]: Start difference. First operand 23533 states and 25975 transitions. Second operand 7 states. [2020-10-14 22:12:32,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:32,321 INFO L93 Difference]: Finished difference Result 47061 states and 51956 transitions. [2020-10-14 22:12:32,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:12:32,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1453 [2020-10-14 22:12:32,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:32,354 INFO L225 Difference]: With dead ends: 47061 [2020-10-14 22:12:32,354 INFO L226 Difference]: Without dead ends: 24210 [2020-10-14 22:12:32,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 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 22:12:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24210 states. [2020-10-14 22:12:32,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24210 to 23534. [2020-10-14 22:12:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23534 states. [2020-10-14 22:12:32,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23534 states to 23534 states and 25525 transitions. [2020-10-14 22:12:32,659 INFO L78 Accepts]: Start accepts. Automaton has 23534 states and 25525 transitions. Word has length 1453 [2020-10-14 22:12:32,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:32,659 INFO L479 AbstractCegarLoop]: Abstraction has 23534 states and 25525 transitions. [2020-10-14 22:12:32,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:32,660 INFO L276 IsEmpty]: Start isEmpty. Operand 23534 states and 25525 transitions. [2020-10-14 22:12:32,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1495 [2020-10-14 22:12:32,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:32,687 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 22:12:32,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:12:32,688 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:32,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:32,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1528686961, now seen corresponding path program 1 times [2020-10-14 22:12:32,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:32,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223056982] [2020-10-14 22:12:32,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:33,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:33,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:35,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:36,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:37,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:37,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1518 [2020-10-14 22:12:37,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:12:37,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 22:12:37,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:37,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:37,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:37,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 990 [2020-10-14 22:12:37,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:12:37,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:38,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:12:38,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:12:38,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:12:38,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:38,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:12:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:12:38,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:12:38,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:12:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:12:38,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:12:38,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 22:12:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 22:12:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:12:38,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:12:38,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 716 [2020-10-14 22:12:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:12:38,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 22:12:38,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 22:12:38,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 978 [2020-10-14 22:12:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:38,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-14 22:12:38,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:38,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:12:38,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:39,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1251 [2020-10-14 22:12:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:39,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:39,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:39,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:12:39,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:39,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:12:39,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:39,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:12:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:39,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4101 backedges. 1369 proven. 197 refuted. 0 times theorem prover too weak. 2535 trivial. 0 not checked. [2020-10-14 22:12:40,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [223056982] [2020-10-14 22:12:40,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:40,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:40,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794228073] [2020-10-14 22:12:40,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:40,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:40,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:40,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:40,459 INFO L87 Difference]: Start difference. First operand 23534 states and 25525 transitions. Second operand 7 states. [2020-10-14 22:12:45,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:45,036 INFO L93 Difference]: Finished difference Result 50448 states and 54864 transitions. [2020-10-14 22:12:45,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:12:45,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1494 [2020-10-14 22:12:45,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:45,078 INFO L225 Difference]: With dead ends: 50448 [2020-10-14 22:12:45,078 INFO L226 Difference]: Without dead ends: 27596 [2020-10-14 22:12:45,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:12:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27596 states. [2020-10-14 22:12:45,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27596 to 26916. [2020-10-14 22:12:45,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26916 states. [2020-10-14 22:12:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26916 states to 26916 states and 29233 transitions. [2020-10-14 22:12:45,435 INFO L78 Accepts]: Start accepts. Automaton has 26916 states and 29233 transitions. Word has length 1494 [2020-10-14 22:12:45,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:45,436 INFO L479 AbstractCegarLoop]: Abstraction has 26916 states and 29233 transitions. [2020-10-14 22:12:45,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:45,436 INFO L276 IsEmpty]: Start isEmpty. Operand 26916 states and 29233 transitions. [2020-10-14 22:12:45,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1508 [2020-10-14 22:12:45,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:45,475 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:12:45,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:12:45,476 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:45,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1731939738, now seen corresponding path program 1 times [2020-10-14 22:12:45,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:45,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366370338] [2020-10-14 22:12:45,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:45,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:45,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:46,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:50,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:50,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1531 [2020-10-14 22:12:50,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:12:50,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 22:12:50,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:50,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:50,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:50,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 725 [2020-10-14 22:12:50,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 22:12:50,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:50,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:50,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:50,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:50,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:50,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:50,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:12:50,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:50,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:50,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:50,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:50,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:50,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:50,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:12:50,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:50,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:12:50,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:50,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:50,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:50,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:12:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:50,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:50,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:50,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:12:50,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:50,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:12:50,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:50,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:50,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:50,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:50,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:50,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:50,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:12:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:50,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:50,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:50,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:12:50,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:50,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:12:50,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:50,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:50,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:50,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 22:12:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:50,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:51,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:51,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:12:51,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:51,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:12:51,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:51,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:51,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:51,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:51,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 22:12:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:51,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:51,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:51,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:12:51,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:51,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:12:51,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:51,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:51,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:51,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:51,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:12:51,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:51,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2020-10-14 22:12:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:51,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:51,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:51,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:12:51,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:51,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 22:12:51,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:51,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 22:12:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:51,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 991 [2020-10-14 22:12:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:51,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:51,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:51,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:51,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:51,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:12:51,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:51,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:12:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:51,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1264 [2020-10-14 22:12:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:51,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:51,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:51,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:12:51,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:51,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:12:51,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:51,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:12:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:51,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4105 backedges. 1120 proven. 467 refuted. 0 times theorem prover too weak. 2518 trivial. 0 not checked. [2020-10-14 22:12:52,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366370338] [2020-10-14 22:12:52,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:52,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:52,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374523692] [2020-10-14 22:12:52,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:52,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:52,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:52,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:52,655 INFO L87 Difference]: Start difference. First operand 26916 states and 29233 transitions. Second operand 7 states. [2020-10-14 22:12:56,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:56,698 INFO L93 Difference]: Finished difference Result 54327 states and 59838 transitions. [2020-10-14 22:12:56,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:12:56,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1507 [2020-10-14 22:12:56,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:56,745 INFO L225 Difference]: With dead ends: 54327 [2020-10-14 22:12:56,745 INFO L226 Difference]: Without dead ends: 28093 [2020-10-14 22:12:56,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 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 22:12:56,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28093 states. [2020-10-14 22:12:57,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28093 to 27253. [2020-10-14 22:12:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27253 states. [2020-10-14 22:12:57,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27253 states to 27253 states and 29025 transitions. [2020-10-14 22:12:57,044 INFO L78 Accepts]: Start accepts. Automaton has 27253 states and 29025 transitions. Word has length 1507 [2020-10-14 22:12:57,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:57,045 INFO L479 AbstractCegarLoop]: Abstraction has 27253 states and 29025 transitions. [2020-10-14 22:12:57,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:57,045 INFO L276 IsEmpty]: Start isEmpty. Operand 27253 states and 29025 transitions. [2020-10-14 22:12:57,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1630 [2020-10-14 22:12:57,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:57,080 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:12:57,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 22:12:57,080 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:57,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:57,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1645310790, now seen corresponding path program 1 times [2020-10-14 22:12:57,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:57,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992013695] [2020-10-14 22:12:57,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:57,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:57,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:57,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:00,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:01,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking...