/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_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:09:52,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:09:52,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:09:52,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:09:52,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:09:52,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:09:52,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:09:52,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:09:52,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:09:52,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:09:52,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:09:52,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:09:52,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:09:52,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:09:52,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:09:52,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:09:52,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:09:52,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:09:52,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:09:53,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:09:53,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:09:53,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:09:53,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:09:53,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:09:53,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:09:53,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:09:53,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:09:53,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:09:53,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:09:53,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:09:53,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:09:53,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:09:53,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:09:53,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:09:53,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:09:53,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:09:53,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:09:53,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:09:53,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:09:53,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:09:53,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:09:53,041 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 22:09:53,087 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:09:53,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:09:53,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:09:53,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:09:53,090 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:09:53,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:09:53,091 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:09:53,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:09:53,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:09:53,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:09:53,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:09:53,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:09:53,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:09:53,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:09:53,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:09:53,094 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:09:53,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:09:53,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:09:53,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:09:53,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:09:53,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:09:53,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:09:53,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:09:53,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:09:53,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:09:53,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:09:53,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:09:53,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:09:53,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:09:53,097 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 22:09:53,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:09:53,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:09:53,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:09:53,454 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:09:53,454 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:09:53,455 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label10.c [2020-10-14 22:09:53,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94afb7410/d3d7c15f7e9e4077bd303cd185e2305b/FLAG24092af51 [2020-10-14 22:09:54,238 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:09:54,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label10.c [2020-10-14 22:09:54,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94afb7410/d3d7c15f7e9e4077bd303cd185e2305b/FLAG24092af51 [2020-10-14 22:09:54,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94afb7410/d3d7c15f7e9e4077bd303cd185e2305b [2020-10-14 22:09:54,428 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:09:54,430 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:09:54,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:09:54,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:09:54,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:09:54,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:09:54" (1/1) ... [2020-10-14 22:09:54,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ed3e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:54, skipping insertion in model container [2020-10-14 22:09:54,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:09:54" (1/1) ... [2020-10-14 22:09:54,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:09:54,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:09:55,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:09:55,618 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:09:55,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:09:55,885 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:09:55,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:55 WrapperNode [2020-10-14 22:09:55,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:09:55,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:09:55,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:09:55,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:09:55,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:55" (1/1) ... [2020-10-14 22:09:55,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:55" (1/1) ... [2020-10-14 22:09:55,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:55" (1/1) ... [2020-10-14 22:09:55,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:55" (1/1) ... [2020-10-14 22:09:56,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:55" (1/1) ... [2020-10-14 22:09:56,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:55" (1/1) ... [2020-10-14 22:09:56,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:55" (1/1) ... [2020-10-14 22:09:56,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:09:56,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:09:56,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:09:56,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:09:56,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:55" (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 22:09:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:09:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:09:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:09:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:09:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:09:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:09:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:09:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:09:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:09:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:09:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:09:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:09:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:09:58,624 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:09:58,624 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:09:58,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:09:58 BoogieIcfgContainer [2020-10-14 22:09:58,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:09:58,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:09:58,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:09:58,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:09:58,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:09:54" (1/3) ... [2020-10-14 22:09:58,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bfbf1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:09:58, skipping insertion in model container [2020-10-14 22:09:58,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:09:55" (2/3) ... [2020-10-14 22:09:58,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bfbf1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:09:58, skipping insertion in model container [2020-10-14 22:09:58,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:09:58" (3/3) ... [2020-10-14 22:09:58,641 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label10.c [2020-10-14 22:09:58,652 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:09:58,661 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:09:58,676 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:09:58,704 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:09:58,704 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:09:58,705 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:09:58,705 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:09:58,705 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:09:58,705 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:09:58,705 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:09:58,705 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:09:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:09:58,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-14 22:09:58,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:09:58,743 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] [2020-10-14 22:09:58,744 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:09:58,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:09:58,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1129192547, now seen corresponding path program 1 times [2020-10-14 22:09:58,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:09:58,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364915393] [2020-10-14 22:09:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:09:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:59,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:59,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:59,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 22:09:59,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:59,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-10-14 22:09:59,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:59,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:59,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:09:59,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:09:59,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 22:09:59,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 22:09:59,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:09:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:09:59,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:09:59,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:09:59,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:09:59,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:09:59,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:09:59,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:09:59,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:09:59,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:09:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:09:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:09:59,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:09:59,556 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 22:09:59,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364915393] [2020-10-14 22:09:59,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:09:59,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:09:59,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275935493] [2020-10-14 22:09:59,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:09:59,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:09:59,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:09:59,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:09:59,587 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:10:06,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:06,133 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 22:10:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:10:06,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-10-14 22:10:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:06,158 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:10:06,158 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:10:06,171 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 22:10:06,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:10:06,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 22:10:06,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 22:10:06,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1035 transitions. [2020-10-14 22:10:06,299 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1035 transitions. Word has length 38 [2020-10-14 22:10:06,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:06,301 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1035 transitions. [2020-10-14 22:10:06,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:10:06,301 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1035 transitions. [2020-10-14 22:10:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 22:10:06,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:06,310 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:06,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:10:06,310 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:06,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:06,312 INFO L82 PathProgramCache]: Analyzing trace with hash -746559240, now seen corresponding path program 1 times [2020-10-14 22:10:06,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:06,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753870970] [2020-10-14 22:10:06,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:06,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:06,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:06,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:07,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:07,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 22:10:07,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:10:07,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1161 [2020-10-14 22:10:07,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:07,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:10:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:10:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 22:10:07,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:10:07,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:07,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:07,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:07,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:07,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:07,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:10:07,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:07,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:07,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:07,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:10:07,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:07,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:07,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:07,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:07,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:07,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:10:07,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:10:07,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-14 22:10:07,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:07,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 22:10:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 22:10:07,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753870970] [2020-10-14 22:10:07,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:07,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:10:07,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582292572] [2020-10-14 22:10:07,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:07,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:07,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:07,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:07,972 INFO L87 Difference]: Start difference. First operand 689 states and 1035 transitions. Second operand 7 states. [2020-10-14 22:10:13,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:13,176 INFO L93 Difference]: Finished difference Result 2092 states and 3179 transitions. [2020-10-14 22:10:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:10:13,177 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-14 22:10:13,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:13,192 INFO L225 Difference]: With dead ends: 2092 [2020-10-14 22:10:13,193 INFO L226 Difference]: Without dead ends: 1409 [2020-10-14 22:10:13,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:10:13,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2020-10-14 22:10:13,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1382. [2020-10-14 22:10:13,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1382 states. [2020-10-14 22:10:13,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1816 transitions. [2020-10-14 22:10:13,310 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1816 transitions. Word has length 110 [2020-10-14 22:10:13,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:13,313 INFO L479 AbstractCegarLoop]: Abstraction has 1382 states and 1816 transitions. [2020-10-14 22:10:13,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:13,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1816 transitions. [2020-10-14 22:10:13,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-14 22:10:13,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:13,327 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:13,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:10:13,328 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:13,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:13,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1073645856, now seen corresponding path program 1 times [2020-10-14 22:10:13,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:13,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603786956] [2020-10-14 22:10:13,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:13,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:13,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:13,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:14,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:15,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:16,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:16,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-14 22:10:16,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:10:16,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3097 [2020-10-14 22:10:16,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:16,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:16,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:10:16,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:10:16,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 22:10:16,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:16,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:16,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:16,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:16,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:16,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:16,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:10:16,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:16,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:10:16,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:16,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:16,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:16,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:16,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:16,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:10:16,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:10:16,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 22:10:16,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:16,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:16,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:16,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:10:16,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:16,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:10:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:17,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:17,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:17,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:10:17,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:17,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 22:10:17,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:17,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 22:10:17,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:10:17,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603786956] [2020-10-14 22:10:17,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:17,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:17,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550208158] [2020-10-14 22:10:17,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:17,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:17,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:17,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:17,224 INFO L87 Difference]: Start difference. First operand 1382 states and 1816 transitions. Second operand 7 states. [2020-10-14 22:10:22,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:22,766 INFO L93 Difference]: Finished difference Result 3490 states and 4783 transitions. [2020-10-14 22:10:22,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:10:22,768 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-10-14 22:10:22,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:22,790 INFO L225 Difference]: With dead ends: 3490 [2020-10-14 22:10:22,791 INFO L226 Difference]: Without dead ends: 2114 [2020-10-14 22:10:22,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:10:22,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states. [2020-10-14 22:10:22,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 2079. [2020-10-14 22:10:22,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2079 states. [2020-10-14 22:10:22,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 2686 transitions. [2020-10-14 22:10:22,920 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 2686 transitions. Word has length 201 [2020-10-14 22:10:22,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:22,923 INFO L479 AbstractCegarLoop]: Abstraction has 2079 states and 2686 transitions. [2020-10-14 22:10:22,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:22,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 2686 transitions. [2020-10-14 22:10:22,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-14 22:10:22,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:22,939 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:10:22,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:10:22,940 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:22,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:22,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1082313339, now seen corresponding path program 1 times [2020-10-14 22:10:22,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:22,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713568784] [2020-10-14 22:10:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:23,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:23,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:23,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:23,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:26,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:26,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-14 22:10:26,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:26,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3118 [2020-10-14 22:10:26,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:26,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:26,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:10:26,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:10:26,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-14 22:10:26,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:26,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:26,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:26,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:26,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:26,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:26,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:10:26,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:26,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:10:26,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:26,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:26,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:26,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:26,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:26,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:10:26,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:10:26,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 22:10:26,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:26,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:26,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:26,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:26,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:10:26,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:26,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:10:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:26,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:26,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:27,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:27,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:10:27,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:10:27,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-14 22:10:27,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:27,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:27,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:27,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:27,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:10:27,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 54 proven. 11 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 22:10:27,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713568784] [2020-10-14 22:10:27,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:27,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:27,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693143015] [2020-10-14 22:10:27,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:27,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:27,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:27,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:27,340 INFO L87 Difference]: Start difference. First operand 2079 states and 2686 transitions. Second operand 7 states. [2020-10-14 22:10:35,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:35,278 INFO L93 Difference]: Finished difference Result 5530 states and 7105 transitions. [2020-10-14 22:10:35,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:10:35,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 264 [2020-10-14 22:10:35,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:35,302 INFO L225 Difference]: With dead ends: 5530 [2020-10-14 22:10:35,302 INFO L226 Difference]: Without dead ends: 3457 [2020-10-14 22:10:35,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:10:35,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2020-10-14 22:10:35,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 3107. [2020-10-14 22:10:35,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3107 states. [2020-10-14 22:10:35,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 3957 transitions. [2020-10-14 22:10:35,449 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 3957 transitions. Word has length 264 [2020-10-14 22:10:35,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:35,450 INFO L479 AbstractCegarLoop]: Abstraction has 3107 states and 3957 transitions. [2020-10-14 22:10:35,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:35,450 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 3957 transitions. [2020-10-14 22:10:35,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2020-10-14 22:10:35,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:35,463 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 22:10:35,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:10:35,463 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:35,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:35,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1166490499, now seen corresponding path program 1 times [2020-10-14 22:10:35,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:35,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323955670] [2020-10-14 22:10:35,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:35,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:35,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:36,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:37,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:38,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:38,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:40,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:40,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 482 [2020-10-14 22:10:40,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 22:10:40,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-14 22:10:40,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:40,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:40,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:10:40,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:10:40,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:10:40,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:40,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:40,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:40,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:40,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:40,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:40,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:10:40,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:40,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:40,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:40,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:40,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:40,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:40,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:40,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:40,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:40,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:10:40,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:40,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:10:40,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:40,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:10:40,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:40,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:10:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:40,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:41,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:41,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:41,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:10:41,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:10:41,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-14 22:10:41,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:41,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:10:41,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:41,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 22:10:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:41,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:41,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:41,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:41,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:41,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 22:10:41,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:41,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:41,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:10:41,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:41,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-14 22:10:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:41,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:41,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:41,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:10:41,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:41,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:10:41,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:41,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 22:10:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:41,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:10:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 418 proven. 170 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 22:10:41,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323955670] [2020-10-14 22:10:41,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:41,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:10:41,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135107594] [2020-10-14 22:10:41,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:10:41,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:41,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:10:41,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:10:41,809 INFO L87 Difference]: Start difference. First operand 3107 states and 3957 transitions. Second operand 9 states. [2020-10-14 22:10:47,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:47,134 INFO L93 Difference]: Finished difference Result 7279 states and 9463 transitions. [2020-10-14 22:10:47,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:10:47,135 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 466 [2020-10-14 22:10:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:47,155 INFO L225 Difference]: With dead ends: 7279 [2020-10-14 22:10:47,155 INFO L226 Difference]: Without dead ends: 3817 [2020-10-14 22:10:47,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:10:47,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2020-10-14 22:10:47,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 3796. [2020-10-14 22:10:47,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3796 states. [2020-10-14 22:10:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 4120 transitions. [2020-10-14 22:10:47,262 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 4120 transitions. Word has length 466 [2020-10-14 22:10:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:47,263 INFO L479 AbstractCegarLoop]: Abstraction has 3796 states and 4120 transitions. [2020-10-14 22:10:47,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:10:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 4120 transitions. [2020-10-14 22:10:47,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2020-10-14 22:10:47,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:47,283 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:47,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:10:47,284 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:47,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:47,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1617304682, now seen corresponding path program 1 times [2020-10-14 22:10:47,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:47,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217226556] [2020-10-14 22:10:47,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:47,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:47,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:47,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:47,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:52,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:52,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 708 [2020-10-14 22:10:52,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:10:52,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-14 22:10:52,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:52,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 358 [2020-10-14 22:10:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 22:10:52,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:52,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:10:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:52,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:52,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:52,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:10:52,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:10:52,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:52,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:52,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:52,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:10:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:52,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:52,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:52,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:10:52,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:52,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:10:52,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:52,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:52,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:52,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:10:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:52,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:52,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:52,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:10:52,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:52,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:10:52,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:52,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:52,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:52,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:52,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:52,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:10:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:52,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:52,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:52,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:10:52,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:52,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:10:52,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:52,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:52,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:10:52,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:10:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:10:52,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:52,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 22:10:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:53,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:53,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:53,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:10:53,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 22:10:53,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:53,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:10:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:10:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 22:10:53,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:53,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 22:10:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:53,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:53,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:10:53,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:10:53,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:10:53,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:10:53,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:10:53,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:10:53,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:10:53,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:10:53,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:10:53,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:10:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 488 proven. 109 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2020-10-14 22:10:54,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217226556] [2020-10-14 22:10:54,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:10:54,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:10:54,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845719306] [2020-10-14 22:10:54,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:10:54,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:10:54,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:10:54,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:10:54,214 INFO L87 Difference]: Start difference. First operand 3796 states and 4120 transitions. Second operand 7 states. [2020-10-14 22:10:57,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:10:57,875 INFO L93 Difference]: Finished difference Result 9671 states and 10621 transitions. [2020-10-14 22:10:57,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:10:57,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 690 [2020-10-14 22:10:57,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:10:57,911 INFO L225 Difference]: With dead ends: 9671 [2020-10-14 22:10:57,912 INFO L226 Difference]: Without dead ends: 5881 [2020-10-14 22:10:57,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:10:57,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2020-10-14 22:10:58,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5515. [2020-10-14 22:10:58,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5515 states. [2020-10-14 22:10:58,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 5929 transitions. [2020-10-14 22:10:58,109 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 5929 transitions. Word has length 690 [2020-10-14 22:10:58,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:10:58,110 INFO L479 AbstractCegarLoop]: Abstraction has 5515 states and 5929 transitions. [2020-10-14 22:10:58,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:10:58,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 5929 transitions. [2020-10-14 22:10:58,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2020-10-14 22:10:58,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:10:58,151 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:58,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:10:58,151 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:10:58,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:10:58,152 INFO L82 PathProgramCache]: Analyzing trace with hash -139720450, now seen corresponding path program 1 times [2020-10-14 22:10:58,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:10:58,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244920336] [2020-10-14 22:10:58,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:10:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:10:58,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:58,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:58,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:10:59,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:03,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:03,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 826 [2020-10-14 22:11:03,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:11:03,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-14 22:11:03,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:03,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:11:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:11:03,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:11:03,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:03,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:03,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:03,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:03,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:03,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:03,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:11:03,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:03,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:03,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:11:03,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:11:03,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:03,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:03,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:03,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:11:03,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:03,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-14 22:11:03,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:03,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:11:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:04,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:11:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:04,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:04,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:04,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:11:04,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:04,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:11:04,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:04,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:04,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:04,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:11:04,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:04,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:04,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:11:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:04,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:04,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:04,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:11:04,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:04,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:11:04,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:04,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:11:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:04,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:04,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:11:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:04,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:04,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:04,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:11:04,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:04,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:11:04,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:04,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:04,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:11:04,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:04,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:04,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2020-10-14 22:11:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:04,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:04,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:04,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:11:04,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:04,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:11:04,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:04,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:11:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:04,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 155 proven. 501 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2020-10-14 22:11:05,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244920336] [2020-10-14 22:11:05,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:05,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:05,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888681435] [2020-10-14 22:11:05,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:05,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:05,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:05,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:05,134 INFO L87 Difference]: Start difference. First operand 5515 states and 5929 transitions. Second operand 7 states. [2020-10-14 22:11:08,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:08,258 INFO L93 Difference]: Finished difference Result 11747 states and 12640 transitions. [2020-10-14 22:11:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:11:08,260 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 808 [2020-10-14 22:11:08,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:08,292 INFO L225 Difference]: With dead ends: 11747 [2020-10-14 22:11:08,292 INFO L226 Difference]: Without dead ends: 6238 [2020-10-14 22:11:08,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:11:08,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6238 states. [2020-10-14 22:11:08,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6238 to 6198. [2020-10-14 22:11:08,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6198 states. [2020-10-14 22:11:08,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6198 states to 6198 states and 6645 transitions. [2020-10-14 22:11:08,478 INFO L78 Accepts]: Start accepts. Automaton has 6198 states and 6645 transitions. Word has length 808 [2020-10-14 22:11:08,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:08,480 INFO L479 AbstractCegarLoop]: Abstraction has 6198 states and 6645 transitions. [2020-10-14 22:11:08,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:08,480 INFO L276 IsEmpty]: Start isEmpty. Operand 6198 states and 6645 transitions. [2020-10-14 22:11:08,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 893 [2020-10-14 22:11:08,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:08,506 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:08,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:11:08,507 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:08,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:08,507 INFO L82 PathProgramCache]: Analyzing trace with hash -34146770, now seen corresponding path program 1 times [2020-10-14 22:11:08,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:08,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004787865] [2020-10-14 22:11:08,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:08,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:08,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:09,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:12,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:13,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:13,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:13,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 910 [2020-10-14 22:11:13,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:11:13,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 22:11:13,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:13,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 672 [2020-10-14 22:11:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 22:11:13,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:13,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:13,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:13,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:13,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:13,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:13,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:11:13,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:13,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:13,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:13,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:13,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:13,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:13,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:13,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:13,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:11:13,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:13,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:13,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:13,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:14,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:14,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:14,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:11:14,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:14,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:11:14,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:14,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:14,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:14,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 22:11:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:14,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:14,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:14,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:11:14,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:14,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:11:14,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:14,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:14,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:14,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-14 22:11:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:14,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:14,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:11:14,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:14,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:11:14,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:14,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:14,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:14,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:14,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:11:14,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:14,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-14 22:11:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:14,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:14,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:14,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:11:14,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:14,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 22:11:14,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:14,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-14 22:11:14,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1551 backedges. 773 proven. 2 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2020-10-14 22:11:15,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004787865] [2020-10-14 22:11:15,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:15,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:15,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121234782] [2020-10-14 22:11:15,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:15,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:15,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:15,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:15,164 INFO L87 Difference]: Start difference. First operand 6198 states and 6645 transitions. Second operand 7 states. [2020-10-14 22:11:18,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:18,538 INFO L93 Difference]: Finished difference Result 13128 states and 14345 transitions. [2020-10-14 22:11:18,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:11:18,539 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 892 [2020-10-14 22:11:18,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:18,573 INFO L225 Difference]: With dead ends: 13128 [2020-10-14 22:11:18,573 INFO L226 Difference]: Without dead ends: 6583 [2020-10-14 22:11:18,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:11:18,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2020-10-14 22:11:18,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6557. [2020-10-14 22:11:18,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6557 states. [2020-10-14 22:11:18,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 7004 transitions. [2020-10-14 22:11:18,730 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 7004 transitions. Word has length 892 [2020-10-14 22:11:18,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:18,731 INFO L479 AbstractCegarLoop]: Abstraction has 6557 states and 7004 transitions. [2020-10-14 22:11:18,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:18,731 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 7004 transitions. [2020-10-14 22:11:18,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2020-10-14 22:11:18,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:18,756 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:11:18,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:11:18,757 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:18,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:18,758 INFO L82 PathProgramCache]: Analyzing trace with hash 333432431, now seen corresponding path program 1 times [2020-10-14 22:11:18,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:18,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380653044] [2020-10-14 22:11:18,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:19,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:19,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:19,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:21,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:24,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:24,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1016 [2020-10-14 22:11:24,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:11:24,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 22:11:24,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:24,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:24,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:24,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 672 [2020-10-14 22:11:24,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:11:24,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:24,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:24,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:24,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:24,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:24,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:11:24,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:24,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:24,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:24,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:24,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:24,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:24,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:24,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:24,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:24,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:11:24,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:24,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:24,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:24,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:24,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:24,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:24,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:11:24,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:11:24,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:24,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:24,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 22:11:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:24,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:24,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:24,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:11:24,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:24,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:11:24,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:24,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:24,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:24,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-14 22:11:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:24,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:24,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:24,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:11:24,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:24,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:11:24,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:24,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:11:24,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:24,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-14 22:11:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:24,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:24,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:24,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:11:24,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-14 22:11:24,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:24,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 22:11:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:24,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-14 22:11:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:24,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:24,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:24,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:11:24,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:24,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:11:24,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:24,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 22:11:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:24,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 837 proven. 86 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2020-10-14 22:11:25,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380653044] [2020-10-14 22:11:25,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:25,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:25,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817070579] [2020-10-14 22:11:25,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:25,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:25,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:25,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:25,438 INFO L87 Difference]: Start difference. First operand 6557 states and 7004 transitions. Second operand 7 states. [2020-10-14 22:11:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:28,885 INFO L93 Difference]: Finished difference Result 16188 states and 17408 transitions. [2020-10-14 22:11:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:11:28,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 996 [2020-10-14 22:11:28,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:28,922 INFO L225 Difference]: With dead ends: 16188 [2020-10-14 22:11:28,923 INFO L226 Difference]: Without dead ends: 9966 [2020-10-14 22:11:28,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 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 22:11:28,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9966 states. [2020-10-14 22:11:29,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9966 to 9958. [2020-10-14 22:11:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9958 states. [2020-10-14 22:11:29,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9958 states to 9958 states and 10601 transitions. [2020-10-14 22:11:29,147 INFO L78 Accepts]: Start accepts. Automaton has 9958 states and 10601 transitions. Word has length 996 [2020-10-14 22:11:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:29,149 INFO L479 AbstractCegarLoop]: Abstraction has 9958 states and 10601 transitions. [2020-10-14 22:11:29,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 9958 states and 10601 transitions. [2020-10-14 22:11:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1018 [2020-10-14 22:11:29,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:29,183 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:11:29,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:11:29,184 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:29,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:29,185 INFO L82 PathProgramCache]: Analyzing trace with hash -408375903, now seen corresponding path program 1 times [2020-10-14 22:11:29,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:29,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598099341] [2020-10-14 22:11:29,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:29,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:29,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:34,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:34,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1035 [2020-10-14 22:11:34,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:11:34,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-14 22:11:34,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:34,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:34,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:34,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 560 [2020-10-14 22:11:34,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:11:34,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:34,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:34,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:34,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:34,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:34,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:34,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:11:34,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:34,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:34,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:34,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:34,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:34,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:34,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:34,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:34,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:11:34,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:34,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:34,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:34,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:34,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:34,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:34,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:11:34,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:34,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:11:34,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:34,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:34,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:34,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 22:11:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:34,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:34,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:34,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:11:34,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:34,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:11:34,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:34,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:34,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:34,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:34,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:11:34,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:34,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-14 22:11:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:34,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:35,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:35,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:11:35,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:35,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-14 22:11:35,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:35,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:35,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:35,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:35,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:11:35,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:35,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 827 [2020-10-14 22:11:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:35,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:35,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:35,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 22:11:35,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:35,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:11:35,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:35,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:35,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:35,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 22:11:35,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:35,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1776 backedges. 714 proven. 159 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2020-10-14 22:11:36,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598099341] [2020-10-14 22:11:36,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:36,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:36,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220888618] [2020-10-14 22:11:36,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:36,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:36,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:36,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:36,217 INFO L87 Difference]: Start difference. First operand 9958 states and 10601 transitions. Second operand 7 states. [2020-10-14 22:11:40,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:40,925 INFO L93 Difference]: Finished difference Result 22624 states and 24203 transitions. [2020-10-14 22:11:40,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:11:40,926 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1017 [2020-10-14 22:11:40,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:40,973 INFO L225 Difference]: With dead ends: 22624 [2020-10-14 22:11:40,973 INFO L226 Difference]: Without dead ends: 12661 [2020-10-14 22:11:41,009 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 22:11:41,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12661 states. [2020-10-14 22:11:41,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12661 to 11646. [2020-10-14 22:11:41,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11646 states. [2020-10-14 22:11:41,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11646 states to 11646 states and 12194 transitions. [2020-10-14 22:11:41,233 INFO L78 Accepts]: Start accepts. Automaton has 11646 states and 12194 transitions. Word has length 1017 [2020-10-14 22:11:41,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:41,234 INFO L479 AbstractCegarLoop]: Abstraction has 11646 states and 12194 transitions. [2020-10-14 22:11:41,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:41,234 INFO L276 IsEmpty]: Start isEmpty. Operand 11646 states and 12194 transitions. [2020-10-14 22:11:41,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1488 [2020-10-14 22:11:41,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:41,297 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:41,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:11:41,297 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:41,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:41,298 INFO L82 PathProgramCache]: Analyzing trace with hash 476104071, now seen corresponding path program 1 times [2020-10-14 22:11:41,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:41,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072633885] [2020-10-14 22:11:41,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:41,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:42,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:42,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:43,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:46,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:46,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1509 [2020-10-14 22:11:46,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:11:46,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5095 [2020-10-14 22:11:46,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:46,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:11:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:11:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:11:46,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:46,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:46,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:46,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:46,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:46,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:46,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:11:46,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:46,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:46,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:11:46,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:46,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:46,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:46,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:47,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:47,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:11:47,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:11:47,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-14 22:11:47,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:47,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:11:47,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:47,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:11:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:47,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:47,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:47,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:11:47,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:47,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 22:11:47,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:47,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:47,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:47,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:11:47,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:11:47,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:47,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:11:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:47,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:47,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:47,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:11:47,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:47,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:11:47,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:47,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:47,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:47,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:11:47,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:47,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:47,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2020-10-14 22:11:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:47,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:48,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:48,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:11:48,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:48,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:11:48,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:48,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:11:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:48,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:48,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 972 [2020-10-14 22:11:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:48,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:48,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:48,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:11:48,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:48,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:11:48,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:48,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:11:48,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:48,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:48,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1043 [2020-10-14 22:11:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:48,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:48,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:48,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:11:48,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:48,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:11:48,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:48,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:11:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:48,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:48,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 22:11:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:48,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:48,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:48,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 22:11:48,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:48,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:11:48,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:48,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:48,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:48,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 22:11:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:48,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:50,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3716 backedges. 478 proven. 911 refuted. 0 times theorem prover too weak. 2327 trivial. 0 not checked. [2020-10-14 22:11:50,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072633885] [2020-10-14 22:11:50,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:11:50,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:11:50,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944307836] [2020-10-14 22:11:50,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:11:50,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:11:50,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:11:50,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:11:50,243 INFO L87 Difference]: Start difference. First operand 11646 states and 12194 transitions. Second operand 7 states. [2020-10-14 22:11:52,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:11:52,783 INFO L93 Difference]: Finished difference Result 22951 states and 24044 transitions. [2020-10-14 22:11:52,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:11:52,785 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1487 [2020-10-14 22:11:52,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:11:52,822 INFO L225 Difference]: With dead ends: 22951 [2020-10-14 22:11:52,822 INFO L226 Difference]: Without dead ends: 11650 [2020-10-14 22:11:52,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:11:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11650 states. [2020-10-14 22:11:53,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11650 to 11646. [2020-10-14 22:11:53,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11646 states. [2020-10-14 22:11:53,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11646 states to 11646 states and 12192 transitions. [2020-10-14 22:11:53,039 INFO L78 Accepts]: Start accepts. Automaton has 11646 states and 12192 transitions. Word has length 1487 [2020-10-14 22:11:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:11:53,041 INFO L479 AbstractCegarLoop]: Abstraction has 11646 states and 12192 transitions. [2020-10-14 22:11:53,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:11:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 11646 states and 12192 transitions. [2020-10-14 22:11:53,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1522 [2020-10-14 22:11:53,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:11:53,098 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:11:53,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:11:53,099 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:11:53,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:11:53,100 INFO L82 PathProgramCache]: Analyzing trace with hash 574650542, now seen corresponding path program 1 times [2020-10-14 22:11:53,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:11:53,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239549872] [2020-10-14 22:11:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:11:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:53,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:54,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:54,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:58,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:58,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1545 [2020-10-14 22:11:58,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:11:58,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5235 [2020-10-14 22:11:58,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:58,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:11:58,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-14 22:11:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:11:58,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:59,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:11:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:59,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:59,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:59,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:11:59,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:59,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:11:59,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:59,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:59,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:11:59,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:11:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:59,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:59,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:59,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:11:59,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:59,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:11:59,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:59,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:59,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:59,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:11:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:59,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:59,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:59,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:11:59,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:59,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:11:59,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:59,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:59,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:59,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:59,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:59,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:59,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:11:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:59,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:59,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:59,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:11:59,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:59,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:11:59,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:59,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:11:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:11:59,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:11:59,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:11:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:59,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:11:59,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:11:59,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:11:59,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:11:59,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 22:11:59,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:11:59,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:11:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:11:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:11:59,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:11:59,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:11:59,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-14 22:11:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:11:59,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:00,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:00,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:00,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:00,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-14 22:12:00,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:00,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:12:00,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:00,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-14 22:12:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:00,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:00,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:00,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:12:00,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:12:00,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:00,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:12:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:00,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1077 [2020-10-14 22:12:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:00,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:00,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:00,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:12:00,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:00,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:12:00,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:00,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:00,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:00,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:12:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:00,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1331 [2020-10-14 22:12:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:00,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:00,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:00,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 22:12:00,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:00,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:12:00,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:00,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:00,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:00,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 22:12:00,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:00,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4284 backedges. 1024 proven. 478 refuted. 0 times theorem prover too weak. 2782 trivial. 0 not checked. [2020-10-14 22:12:03,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239549872] [2020-10-14 22:12:03,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:03,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:03,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377433117] [2020-10-14 22:12:03,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:03,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:03,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:03,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:03,538 INFO L87 Difference]: Start difference. First operand 11646 states and 12192 transitions. Second operand 7 states. [2020-10-14 22:12:06,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:06,644 INFO L93 Difference]: Finished difference Result 22955 states and 24049 transitions. [2020-10-14 22:12:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:12:06,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1521 [2020-10-14 22:12:06,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:06,675 INFO L225 Difference]: With dead ends: 22955 [2020-10-14 22:12:06,675 INFO L226 Difference]: Without dead ends: 11654 [2020-10-14 22:12:06,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:12:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11654 states. [2020-10-14 22:12:06,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11654 to 11646. [2020-10-14 22:12:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11646 states. [2020-10-14 22:12:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11646 states to 11646 states and 12188 transitions. [2020-10-14 22:12:06,858 INFO L78 Accepts]: Start accepts. Automaton has 11646 states and 12188 transitions. Word has length 1521 [2020-10-14 22:12:06,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:06,860 INFO L479 AbstractCegarLoop]: Abstraction has 11646 states and 12188 transitions. [2020-10-14 22:12:06,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand 11646 states and 12188 transitions. [2020-10-14 22:12:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1682 [2020-10-14 22:12:06,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:06,910 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 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, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:12:06,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:12:06,910 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:06,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:06,911 INFO L82 PathProgramCache]: Analyzing trace with hash -939596604, now seen corresponding path program 1 times [2020-10-14 22:12:06,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:06,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227827161] [2020-10-14 22:12:06,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:07,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:07,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:07,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:08,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:12,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:12,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1709 [2020-10-14 22:12:12,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:12:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 22:12:12,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:12,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 905 [2020-10-14 22:12:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:12:12,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:12,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:12,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:12,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:12,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:12,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:12,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:12:12,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:12,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:12,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:12,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:12,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:12,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:12,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:12:12,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:12,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:12:12,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:12,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:12,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:12,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:12,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:12,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:12,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:12:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:12,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:12,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:12,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:12:12,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:12,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:12:12,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:12,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:12,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:12,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:12,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:12,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:12,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:12:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:12,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:12,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:12,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:12:12,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:12,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:12:12,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:12,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:12,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:12,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:12:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:12,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:12,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:12,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:12:12,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:12:12,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:12,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:12,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:12:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:12,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:12,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:12,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:12:12,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:12,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:12:12,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:12,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:12,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:12,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-14 22:12:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:12,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:12,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:12,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:12:12,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:12,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:12:12,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:12,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:12,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:12,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:12,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 22:12:12,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:12,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-14 22:12:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:12,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:13,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-14 22:12:13,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:13,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:13,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:12:13,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1166 [2020-10-14 22:12:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:12:13,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:12:13,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 22:12:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:13,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1237 [2020-10-14 22:12:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:12:13,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:12:13,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:13,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:12:13,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:13,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:13,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1491 [2020-10-14 22:12:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:13,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:13,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:13,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 22:12:13,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:13,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 22:12:13,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:13,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 22:12:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:13,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 5832 backedges. 1274 proven. 478 refuted. 0 times theorem prover too weak. 4080 trivial. 0 not checked. [2020-10-14 22:12:14,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227827161] [2020-10-14 22:12:14,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:14,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:14,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872012011] [2020-10-14 22:12:14,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:14,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:14,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:14,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:14,766 INFO L87 Difference]: Start difference. First operand 11646 states and 12188 transitions. Second operand 7 states. [2020-10-14 22:12:19,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:19,414 INFO L93 Difference]: Finished difference Result 25326 states and 26605 transitions. [2020-10-14 22:12:19,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:12:19,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1681 [2020-10-14 22:12:19,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:19,455 INFO L225 Difference]: With dead ends: 25326 [2020-10-14 22:12:19,455 INFO L226 Difference]: Without dead ends: 13686 [2020-10-14 22:12:19,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 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 22:12:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13686 states. [2020-10-14 22:12:19,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13686 to 13343. [2020-10-14 22:12:19,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13343 states. [2020-10-14 22:12:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13343 states to 13343 states and 13846 transitions. [2020-10-14 22:12:19,692 INFO L78 Accepts]: Start accepts. Automaton has 13343 states and 13846 transitions. Word has length 1681 [2020-10-14 22:12:19,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:19,694 INFO L479 AbstractCegarLoop]: Abstraction has 13343 states and 13846 transitions. [2020-10-14 22:12:19,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 13343 states and 13846 transitions. [2020-10-14 22:12:19,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1900 [2020-10-14 22:12:19,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:19,772 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 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 22:12:19,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:12:19,772 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:19,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:19,773 INFO L82 PathProgramCache]: Analyzing trace with hash -499565503, now seen corresponding path program 1 times [2020-10-14 22:12:19,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:19,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714592784] [2020-10-14 22:12:19,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:20,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:20,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:20,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:21,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1929 [2020-10-14 22:12:25,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:12:25,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5146 [2020-10-14 22:12:25,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-14 22:12:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:12:25,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:25,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:25,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:25,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:25,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:12:25,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:25,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:25,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:25,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:12:25,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:25,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 22:12:25,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:25,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:25,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:25,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:12:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:25,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:12:25,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:25,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:12:25,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:25,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:25,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:12:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:25,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:12:25,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:25,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:12:25,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:25,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:25,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:12:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:25,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:25,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:25,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:12:25,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:25,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:12:25,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:25,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:25,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:25,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:25,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:12:25,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:25,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:12:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:25,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:26,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:26,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:12:26,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:26,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-14 22:12:26,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:26,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:12:26,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:26,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-14 22:12:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:26,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:26,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:26,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:12:26,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:26,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:12:26,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:26,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:12:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:26,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:26,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-14 22:12:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:26,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:26,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:26,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:12:26,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:12:26,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:26,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:12:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:26,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:26,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 967 [2020-10-14 22:12:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:26,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:26,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:26,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:26,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:12:26,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:26,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:12:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:26,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1240 [2020-10-14 22:12:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:26,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:26,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:26,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:12:26,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:26,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:12:26,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:26,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:26,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:26,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:12:26,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:26,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:26,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1505 [2020-10-14 22:12:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:26,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:26,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:26,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:12:26,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:26,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:12:26,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:26,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:26,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:26,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:12:26,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:26,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:26,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1720 [2020-10-14 22:12:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:26,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:26,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:26,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:12:26,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:26,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:12:26,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:26,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:12:26,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:26,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:28,066 INFO L134 CoverageAnalysis]: Checked inductivity of 7368 backedges. 926 proven. 776 refuted. 0 times theorem prover too weak. 5666 trivial. 0 not checked. [2020-10-14 22:12:28,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714592784] [2020-10-14 22:12:28,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:28,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:28,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831632244] [2020-10-14 22:12:28,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:28,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:28,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:28,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:28,069 INFO L87 Difference]: Start difference. First operand 13343 states and 13846 transitions. Second operand 7 states. [2020-10-14 22:12:32,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:32,077 INFO L93 Difference]: Finished difference Result 31082 states and 32360 transitions. [2020-10-14 22:12:32,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:12:32,078 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1899 [2020-10-14 22:12:32,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:32,123 INFO L225 Difference]: With dead ends: 31082 [2020-10-14 22:12:32,123 INFO L226 Difference]: Without dead ends: 17745 [2020-10-14 22:12:32,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:12:32,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17745 states. [2020-10-14 22:12:32,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17745 to 17398. [2020-10-14 22:12:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17398 states. [2020-10-14 22:12:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17398 states to 17398 states and 18020 transitions. [2020-10-14 22:12:32,389 INFO L78 Accepts]: Start accepts. Automaton has 17398 states and 18020 transitions. Word has length 1899 [2020-10-14 22:12:32,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:32,391 INFO L479 AbstractCegarLoop]: Abstraction has 17398 states and 18020 transitions. [2020-10-14 22:12:32,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:32,391 INFO L276 IsEmpty]: Start isEmpty. Operand 17398 states and 18020 transitions. [2020-10-14 22:12:32,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1906 [2020-10-14 22:12:32,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:32,447 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-14 22:12:32,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:12:32,447 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:32,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:32,448 INFO L82 PathProgramCache]: Analyzing trace with hash 242427532, now seen corresponding path program 1 times [2020-10-14 22:12:32,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:32,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534644040] [2020-10-14 22:12:32,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:32,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:33,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:33,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:33,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:36,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:37,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:37,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1933 [2020-10-14 22:12:37,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:12:37,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5118 [2020-10-14 22:12:37,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:37,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:37,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:37,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 733 [2020-10-14 22:12:37,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:12:37,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:38,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:12:38,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:12:38,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:12:38,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:38,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:12:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:12:38,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:12:38,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:38,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:12:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:12:38,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:12:38,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:12:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:12:38,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:12:38,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:12:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:12:38,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:12:38,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:12:38,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 22:12:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:12:38,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-14 22:12:38,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:38,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:38,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:12:38,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2020-10-14 22:12:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:38,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:38,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:38,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:38,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:38,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:12:38,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:38,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:38,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:12:38,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:38,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:38,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1246 [2020-10-14 22:12:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:39,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:39,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:39,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:12:39,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:39,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:12:39,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:39,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:39,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:39,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:12:39,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:39,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:39,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1511 [2020-10-14 22:12:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:39,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:39,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:39,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:12:39,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:12:39,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:39,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:39,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:12:39,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:39,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:39,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1726 [2020-10-14 22:12:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:39,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:39,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:39,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:12:39,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:12:39,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:39,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:12:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:39,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:41,213 INFO L134 CoverageAnalysis]: Checked inductivity of 6809 backedges. 1110 proven. 854 refuted. 0 times theorem prover too weak. 4845 trivial. 0 not checked. [2020-10-14 22:12:41,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534644040] [2020-10-14 22:12:41,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:41,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:41,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156673146] [2020-10-14 22:12:41,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:41,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:41,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:41,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:41,216 INFO L87 Difference]: Start difference. First operand 17398 states and 18020 transitions. Second operand 7 states. [2020-10-14 22:12:44,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:44,952 INFO L93 Difference]: Finished difference Result 35474 states and 36731 transitions. [2020-10-14 22:12:44,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:12:44,954 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1905 [2020-10-14 22:12:44,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:45,004 INFO L225 Difference]: With dead ends: 35474 [2020-10-14 22:12:45,004 INFO L226 Difference]: Without dead ends: 18421 [2020-10-14 22:12:45,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 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 22:12:45,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18421 states. [2020-10-14 22:12:45,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18421 to 18415. [2020-10-14 22:12:45,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18415 states. [2020-10-14 22:12:45,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18415 states to 18415 states and 19049 transitions. [2020-10-14 22:12:45,479 INFO L78 Accepts]: Start accepts. Automaton has 18415 states and 19049 transitions. Word has length 1905 [2020-10-14 22:12:45,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:12:45,481 INFO L479 AbstractCegarLoop]: Abstraction has 18415 states and 19049 transitions. [2020-10-14 22:12:45,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:12:45,481 INFO L276 IsEmpty]: Start isEmpty. Operand 18415 states and 19049 transitions. [2020-10-14 22:12:45,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2057 [2020-10-14 22:12:45,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:12:45,565 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:12:45,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:12:45,566 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:12:45,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:12:45,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1228396788, now seen corresponding path program 1 times [2020-10-14 22:12:45,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:12:45,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141937060] [2020-10-14 22:12:45,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:12:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:46,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:47,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:52,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:52,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2088 [2020-10-14 22:12:52,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:12:52,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6798 [2020-10-14 22:12:52,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:52,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:12:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:12:52,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:52,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:12:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:52,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:52,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:52,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:12:52,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:52,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:12:52,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:52,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:52,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:52,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:12:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:52,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:12:53,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 22:12:53,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:12:53,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:53,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:12:53,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:53,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:12:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:12:53,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 22:12:53,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:12:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:12:53,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:12:53,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:53,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:12:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:12:53,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:12:53,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:53,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:12:53,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:53,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:53,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:12:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:12:53,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:12:53,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:53,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 22:12:53,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:53,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:53,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:12:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:12:53,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:12:53,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:53,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:12:53,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:53,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:53,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 22:12:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:12:53,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:12:53,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:53,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:12:53,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:53,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:53,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:12:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:12:53,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:12:53,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:53,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:12:53,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:53,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:53,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-14 22:12:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:12:53,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:12:53,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:53,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:12:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:53,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:53,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1124 [2020-10-14 22:12:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:53,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:53,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:53,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:12:53,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:53,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:12:54,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:54,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:54,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:54,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:12:54,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:54,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:54,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1397 [2020-10-14 22:12:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:54,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:54,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:54,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:12:54,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:54,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 22:12:54,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:54,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:54,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:54,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:12:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:54,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:12:54,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-14 22:12:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:54,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:54,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:54,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:12:54,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:54,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:12:54,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:54,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:12:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:54,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:54,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1877 [2020-10-14 22:12:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:12:54,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:12:54,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:12:54,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:12:54,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:12:54,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:12:54,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:12:54,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:12:54,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:12:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:12:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:12:54,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:12:56,507 INFO L134 CoverageAnalysis]: Checked inductivity of 7614 backedges. 536 proven. 1160 refuted. 0 times theorem prover too weak. 5918 trivial. 0 not checked. [2020-10-14 22:12:56,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141937060] [2020-10-14 22:12:56,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:12:56,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:12:56,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69185] [2020-10-14 22:12:56,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:12:56,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:12:56,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:12:56,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:12:56,511 INFO L87 Difference]: Start difference. First operand 18415 states and 19049 transitions. Second operand 7 states. [2020-10-14 22:12:59,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:12:59,783 INFO L93 Difference]: Finished difference Result 37504 states and 38850 transitions. [2020-10-14 22:12:59,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:12:59,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2056 [2020-10-14 22:12:59,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:12:59,833 INFO L225 Difference]: With dead ends: 37504 [2020-10-14 22:12:59,833 INFO L226 Difference]: Without dead ends: 19434 [2020-10-14 22:12:59,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 1 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 22:12:59,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19434 states. [2020-10-14 22:13:00,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19434 to 19091. [2020-10-14 22:13:00,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19091 states. [2020-10-14 22:13:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19091 states to 19091 states and 19741 transitions. [2020-10-14 22:13:00,088 INFO L78 Accepts]: Start accepts. Automaton has 19091 states and 19741 transitions. Word has length 2056 [2020-10-14 22:13:00,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:00,089 INFO L479 AbstractCegarLoop]: Abstraction has 19091 states and 19741 transitions. [2020-10-14 22:13:00,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:00,089 INFO L276 IsEmpty]: Start isEmpty. Operand 19091 states and 19741 transitions. [2020-10-14 22:13:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2118 [2020-10-14 22:13:00,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:00,143 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-14 22:13:00,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:13:00,144 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:00,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:00,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2008381893, now seen corresponding path program 1 times [2020-10-14 22:13:00,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:00,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609884175] [2020-10-14 22:13:00,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:00,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:00,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:05,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:05,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2149 [2020-10-14 22:13:05,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:13:05,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5099 [2020-10-14 22:13:05,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:05,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-14 22:13:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:13:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:05,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:13:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:05,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:05,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:05,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:13:05,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:05,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:13:05,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:05,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:05,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:05,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:13:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:05,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:05,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:05,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:13:05,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:05,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:13:05,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:05,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:05,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:05,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:13:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:05,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:05,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:05,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:13:05,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:05,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:13:05,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:05,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:05,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:05,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:05,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:05,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:06,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:13:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:06,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:06,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:06,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:13:06,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:06,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:13:06,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:06,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:06,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:06,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:06,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:13:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:06,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:06,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:06,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:13:06,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:06,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:13:06,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:06,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:06,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:13:06,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:06,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:13:06,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:06,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:13:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:06,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:06,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:06,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:13:06,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:06,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:13:06,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:06,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:06,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:13:06,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:13:06,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:13:06,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:06,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:13:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:06,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:06,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:06,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:13:06,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:06,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 22:13:06,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:06,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:13:06,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:06,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:06,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:13:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:06,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:06,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:06,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:13:06,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:06,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:13:06,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:06,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:06,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:06,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:13:06,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:06,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:06,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 22:13:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:06,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:06,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:06,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:13:06,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:06,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:13:06,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:06,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:13:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:06,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:06,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1185 [2020-10-14 22:13:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:06,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:06,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:06,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:13:06,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:06,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:13:06,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:06,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:13:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:06,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:06,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1458 [2020-10-14 22:13:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:06,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:06,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:06,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:13:06,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:06,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:13:06,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:06,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:06,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:06,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:13:06,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:06,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:06,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1723 [2020-10-14 22:13:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:06,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:06,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:06,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:13:06,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:06,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:13:06,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:06,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:06,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:06,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:13:06,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:06,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:07,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1938 [2020-10-14 22:13:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:07,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:13:07,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:13:07,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:13:07,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:13:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:13:07,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:13:07,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:13:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:13:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:13:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:13:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:13:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 7911 backedges. 855 proven. 633 refuted. 0 times theorem prover too weak. 6423 trivial. 0 not checked. [2020-10-14 22:13:08,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609884175] [2020-10-14 22:13:08,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:13:08,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:13:08,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826665953] [2020-10-14 22:13:08,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:13:08,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:13:08,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:13:08,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:13:08,820 INFO L87 Difference]: Start difference. First operand 19091 states and 19741 transitions. Second operand 7 states. [2020-10-14 22:13:12,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:13:12,755 INFO L93 Difference]: Finished difference Result 41227 states and 42707 transitions. [2020-10-14 22:13:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:13:12,756 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2117 [2020-10-14 22:13:12,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:13:12,808 INFO L225 Difference]: With dead ends: 41227 [2020-10-14 22:13:12,808 INFO L226 Difference]: Without dead ends: 22481 [2020-10-14 22:13:12,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 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 22:13:12,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22481 states. [2020-10-14 22:13:13,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22481 to 21458. [2020-10-14 22:13:13,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21458 states. [2020-10-14 22:13:13,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21458 states to 21458 states and 22153 transitions. [2020-10-14 22:13:13,162 INFO L78 Accepts]: Start accepts. Automaton has 21458 states and 22153 transitions. Word has length 2117 [2020-10-14 22:13:13,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:13:13,163 INFO L479 AbstractCegarLoop]: Abstraction has 21458 states and 22153 transitions. [2020-10-14 22:13:13,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:13:13,163 INFO L276 IsEmpty]: Start isEmpty. Operand 21458 states and 22153 transitions. [2020-10-14 22:13:13,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2253 [2020-10-14 22:13:13,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:13:13,217 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 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, 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, 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 22:13:13,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:13:13,217 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:13:13,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:13:13,218 INFO L82 PathProgramCache]: Analyzing trace with hash -157295526, now seen corresponding path program 1 times [2020-10-14 22:13:13,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:13:13,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103150710] [2020-10-14 22:13:13,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:13:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:13:13,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking...